Hex to HSV Converter
Hex to HSV Converter. Enter your Hex Color and the Hex to HSV Converter instantly works out its HSV Output. The hex to rgb converter breaks a hex color code down into its red, green, and blue components with a single click.
Turning hex color codes to HSV by hand means decoding digits, normalizing channels and juggling a three-branch hue formula, and nobody wants those manual calculations in the middle of a project. This hex to HSV converter works as a simple color code converter for web developers and designers: paste your hex color code and it returns hue, saturation and value, so you can read the HSV values instantly. Need the reverse trip? An hsv to hex check takes just as little time.
Hex to HSV Converter: Turn Any Hex Color Code into HSV Values
The hex to HSV converter asks for one thing, a six-digit code, and gives back three numbers. This free tool runs in any browser, so there is nothing to install, and as an online tool it behaves the same on a laptop, a tablet or a phone. A single hex to HSV lookup replaces a page of arithmetic, which is why it is handy when you are matching a brand shade or checking a swatch in a style guide. Use the text to ebcdic hex converter when preparing a file or job that expects EBCDIC bytes instead of ASCII text.
- Paste your six-digit hex color code, with or without the leading hash. Case does not matter, so #ff5733 and #FF5733 are the same orange.
- Press the convert button and the tool splits the code into red, green and blue pairs, then turns them into decimal channel numbers.
- Copy the
hsv(h, s%, v%)result, with hue in degrees and saturation and value as percentages.
Reading Your HSV Values
The three numbers each answer a different question about the color, which is exactly why designers like them. Read them left to right and you can picture the swatch before you see it:
- Hue is the angle on the color wheel, from 0 to 360 degrees, where 0 is red, 120 is green and 240 is blue.
- Saturation is the vividness, from 0% (pure gray) to 100% (fully intense color).
- Value is the brightness, from 0% (black) to 100% (the brightest version of that hue).
What Is a Hex Color Code? How Hexadecimal Color Works
A hex color code is a hex triplet: a six-digit, three-byte number written in the hexadecimal number system, the base-16 counting scheme that runs all through computing. Each pair of digits stores one channel, from 00 to FF, which equals 0 to 255 in decimal. The first pair is red, the second green and the third blue, so #000000 switches every channel off to give black, while #FFFFFF pushes all three to the maximum to give white.
Browsers read these colors in HTML, CSS and SVG, which makes hex the default color format for stylesheets, inline SVG fills and web design mockups. The catch is that hexadecimal color is compact rather than intuitive: looking at #7B4FD6 you cannot tell how bright it is, how vivid it is or how close it sits to gray. Many colors never need HSV, but a plain hex converter that only swaps number bases does not fix that. Converting to HSV does, because it rewrites the same color in terms you can reason about.
The HSV Color Model Behind Every Hex Color to HSV Result
The HSV color model, sometimes called HSB for hue, saturation and brightness, describes a color by its tone, strength and lightness instead of by red, green and blue amounts. It was designed in the 1970s for computer graphics, to match human vision more closely than raw channel mixing does, since perception of color follows tone and brightness more than it follows red, green and blue amounts. The shape is cylindrical: hue runs around the radial edge, saturation grows from the center outward, and value climbs from the dark bottom to the bright top.
Color Wheel and Color Space
Because hue is an angle, the color wheel becomes a literal part of the math. Red sits at 0, yellow at 60, green at 120, cyan at 180, blue at 240 and magenta at 300. Within this color space, neutral colors (black, white and every gray) sit along the central axis, where saturation is 0. Moving away from that axis adds vivid color; moving up the axis adds brightness. Raising saturation increases intensity, and lowering value darkens the color without changing its hue.
How Hex to HSV Conversion Works Step by Step
Every conversion of a hex code passes through RGB first, because HSV is defined from the red, green and blue channels. The sequence is short enough to do on paper once, and after that you will trust the tool more:
- Split the code into three pairs and convert each to a decimal number between 0 and 255.
- Normalize each channel by dividing by 255, which gives three values between 0 and 1.
- Find the largest channel (max), the smallest (min) and their difference, called delta.
- Set value to the max, compute saturation from delta and max, then pick the hue branch that matches the dominant channel.
Worked Example: #7B4FD6
Take #7B4FD6, a mid-tone violet. The pairs decode as 7B = 7 × 16 + 11 = 123, 4F = 4 × 16 + 15 = 79 and D6 = 13 × 16 + 6 = 214, giving rgb(123, 79, 214). Dividing by 255 gives 0.4824, 0.3098 and 0.8392. The max is 0.8392 (blue), the min is 0.3098, and delta is 0.5294. Value is therefore 0.8392, saturation is 0.5294 ÷ 0.8392 = 0.6308, and because blue dominates, hue is 60 × ((0.4824 − 0.3098) ÷ 0.5294 + 4) = 259.6. Rounded, the result is hsv(260, 63%, 84%).
The Formula Inside Every Color Converter
Whatever the interface, a color converter applies the same published formula. With each channel normalized, \(R' = R/255\), \(G' = G/255\) and \(B' = B/255\), let \(C_{max}\) be the largest, \(C_{min}\) the smallest and \(\Delta = C_{max} - C_{min}\). Then:
$$V = C_{max}$$ $$S = \begin{cases} 0 & \text{if } C_{max} = 0 \\ \dfrac{\Delta}{C_{max}} & \text{otherwise} \end{cases}$$ $$H = 60^\circ \times \begin{cases} 0 & \Delta = 0 \\ \left(\dfrac{G' - B'}{\Delta} \bmod 6\right) & C_{max} = R' \\ \dfrac{B' - R'}{\Delta} + 2 & C_{max} = G' \\ \dfrac{R' - G'}{\Delta} + 4 & C_{max} = B' \end{cases}$$Finally, multiply S and V by 100 to express them as percentages, and keep hue in degrees between 0 and 360. Most tools round to whole numbers, which is plenty of precision for CSS and for everyday work, but the accuracy of the underlying math is the same whether you keep decimals or not. Python's colorsys library applies this same algorithm, only with every output scaled from 0 to 1.
Color Conversion Table: Hex, RGB and HSV Side by Side
A reference table shows how color conversion behaves across the range, from the neutral extremes to fully saturated primaries. Notice how the grays share a hue of 0 and 0% saturation, and only value changes.
| Color | Hex | RGB | HSV |
|---|---|---|---|
| Black | #000000 | 0, 0, 0 | 0°, 0%, 0% |
| White | #FFFFFF | 255, 255, 255 | 0°, 0%, 100% |
| Gray | #808080 | 128, 128, 128 | 0°, 0%, 50% |
| Red | #FF0000 | 255, 0, 0 | 0°, 100%, 100% |
| Orange | #FFA500 | 255, 165, 0 | 39°, 100%, 100% |
| Blue | #0000FF | 0, 0, 255 | 240°, 100%, 100% |
| Violet (worked example) | #7B4FD6 | 123, 79, 214 | 260°, 63%, 84% |
A quick sanity check follows from the table: a color whose channels are all equal can never have saturation, and the larger the gap between its strongest and weakest channel, the more vivid the result.
Checking a Hex Color to HSV Before Darkening a Button
Priya Nambiar, a front-end developer, has a green call-to-action button in the checkout flow, filled with #4C9F6B and carrying white label text. An accessibility review flags it, and she needs to fix it without drifting away from the brand's green. Hex gives her nothing to adjust, so she pastes #4C9F6B into the converter and presses the convert button.
The result reads hsv(142, 52%, 62%). That is the hex-to-HSV conversion she wanted: hue 142° is a mid green, saturation 52% is moderately vivid, and value 62% is the brightness. She works out the white-on-green contrast ratio, and it comes to 3.24:1, short of the 4.5:1 that WCAG 2.1 level AA requires for normal-size text.
The brand team will not accept a new green, so she changes only one number. Holding hue at 142° and saturation at 52%, she steps value down and checks each candidate:
| Value | Hex | Contrast with white |
|---|---|---|
| 62% | #4C9E6A | 3.28:1 |
| 54% | #428A5D | 4.18:1 |
| 50% | #3D8056 | 4.75:1 |
At 54% the button still misses the 4.5:1 line, so she stops at value 50%, which converts back to #3D8056 at 4.75:1. The hue is untouched, so the button still reads as the same green, only deeper. She commits #3D8056 as the new button token, notes hsv(142, 52%, 50%) in the style guide, and re-runs the review's contrast check on the hover state next: that shade starts from the new hsv(142, 52%, 50%) base, so its value has to drop below 50% to stay darker than the button.
Why Designers Use a Color Code Converter for HSV
Hex is how a color gets stored; HSV is how a person adjusts it. That difference shows up in nearly every creative workflow where a color has to be tuned rather than just pasted:
- Digital art and illustration, where painters pick hue on a wheel and then drag saturation and value sliders.
- Photo editing in Photoshop and similar design tools, where color adjustments are made per hue range.
- UI and UX work, where one base color is stretched into hover, active and disabled states.
- Brand guidelines, where an approved hex value must be translated into the HSV settings of a graphics program.
- Print design and photography, where you tune HSV brightness first and only then run the final CMYK conversion for printing.
- Video grading and image retouching, where a hue shift in the HSV values leaves brightness untouched.
Color Theory, Harmony and Palette Building
Once a hex value is converted to HSV, its hue number is the only input color theory needs, so harmony becomes arithmetic. A complementary color sits 180 degrees away, analogous neighbors sit about 30 degrees to either side, and a triadic set spaces three hues 120 degrees apart. Starting from the violet above at 260 degrees, its complement lands at 80, its analogous pair at 230 and 290, and its triadic partners at 20 and 140. Keep saturation and value fixed while you rotate the hue, and you get a color harmony that feels related, a quick route to a balanced color palette.
Grayscale and Edge Cases
When a hex value converts to HSV and its channels are equal, as with grayscale colors, delta is zero, so the hue formula has nothing to work with and the convention is to report hue as 0. That is why #808080 reads 0°, 0%, 50% rather than something undefined. Pure black has a value of 0, so its saturation is also reported as 0. For accessibility work, a similar value does not guarantee enough contrast, so check ratios separately.
Beyond a Hex Converter: Using HSV in CSS and a Color Picker
CSS supports rgb and hsl notation natively but has no hsv() function, so HSV values are usually a stop on the way rather than the destination. A color picker is where HSV earns its place: most pickers expose hue as a strip and saturation and value as a two-dimensional square, which maps one-to-one onto the model. The practical habits below keep that workflow tidy:
- Store the final hex in your design system and record the HSV triple next to it as a note, so a teammate can recreate shades without guessing.
- Build tint and shade scales by changing only saturation and value, which keeps the hue stable across a set of design tokens.
- Convert HSV back to a hex value before pasting it into HTML or CSS, since
hsv()is not a valid CSS function; add opacity afterward through the hex alpha digits and verify the result in a browser. - Utility frameworks such as Tailwind expect fixed hex values, so convert your adjusted HSV back before adding it to a config.
More Hex Converter Options: RGB, HSL and CMYK
HSV is one of several color models, and a project often needs more than one of them. Each pairing below solves a slightly different problem.
Hex to RGB
This is the first half of every HSV conversion. The three decimal channels, called rgb values, drive screens directly, and they are the easiest to tweak numerically when you only need to nudge one channel.
Hex to HSL
HSL swaps value for lightness, so a fully saturated color sits at 50% lightness instead of 100%. Choose it when you write CSS, because browsers accept hsl() directly, and choose HSV when your editing software shows a brightness slider.
RGB to HSV
If you already have the three channel numbers, such as those reported by an eyedropper, skip the decoding and apply the formula straight away. The result matches what you would get from the equivalent hex code.
HSV to Hex
After you tune saturation or value in a picker, the reverse step turns the result back into a compact code you can paste into a stylesheet. For print, convert to CMYK only after the HSV tuning is final: a CMYK profile has a narrower gamut than a screen, so some vivid violets will shift when they leave RGB.