Color converter

RGB to HSV and HSV to RGB

Type an RGB value or an HSV value, and the other one appears as you type. Every other notation of the same color is listed below, with each step of the maths.

Example: rgb(211 175 55)

Example: hsv(46.2 73.9% 82.7%)

The converter needs JavaScript. The values shown are for #D3AF37, and the worked examples below read without it.

Result

Inside sRGB

RGB
rgb(211 175 55)
HSV
hsv(46.2 73.9% 82.7%)
HEX
#D3AF37
HSL
hsl(46.2 63.9% 52.2%)
OKLCH
oklch(76.55% 0.13847 91.55)

Color converters

Every format at once

The same color in every notation the converters know. Each name opens its own converter.

The color in every format
FormatValueCopy
Web and CSS
HEX CSS#D3AF37
RGB CSSrgb(211 175 55)
sRGB (0 to 1) CSScolor(srgb 0.8275 0.6863 0.2157)
Linear sRGB CSScolor(srgb-linear 0.65141 0.42869 0.0382)
HSL CSShsl(46.2 63.9% 52.2%)
HSV (HSB) Notationhsv(46.2 73.9% 82.7%)
HWB CSShwb(46.2 21.6% 17.3%)
CSS color name CSSgoldenrodNearest ΔE00 5.00
Perceptual and CIE
OKLCH CSSoklch(76.55% 0.13847 91.55)
OKLab CSSoklab(76.55% -0.00375 0.13842)
CIELAB CSSlab(73.19 4.7 62.68)
CIE LCH CSSlch(73.19 62.86 85.71)
CIE XYZ (D65) CSScolor(xyz-d65 0.42882 0.44786 0.1)
CIE XYZ (D50) CSScolor(xyz-d50 0.45463 0.45457 0.07797)
CIE xyY NotationxyY(0.43906 0.45855 0.44786)
CIELUV Notationluv(72.75 30.75 69)
Wide gamut
Display P3 CSScolor(display-p3 0.80472 0.69157 0.30739)
Rec. 2020 CSScolor(rec2020 0.74174 0.66017 0.25864)
Adobe RGB (1998) CSScolor(a98-rgb 0.78545 0.68035 0.26584)
ProPhoto RGB CSScolor(prophoto-rgb 0.67408 0.63343 0.26964)
Print and paint
CMYK Notationcmyk(0% 17.1% 73.9% 17.3%)
RAL Classic NotationRAL 1032 Broom yellowNearest ΔE00 3.02
Video
YCbCr (JPEG, BT.601) Notationycbcr(172.08 61.93 155.76)
YCbCr (HD video, BT.709) Notationycbcr709(165.43 71.67 148.64)
Code and platforms
Decimal integer Notation13872951
Android and Flutter ARGB Notation0xFFD3AF37
Android color int Notation-2904265
SwiftUI and UIKit NotationColor(red: 0.8275, green: 0.6863, blue: 0.2157)
GLSL vec3 / vec4 Notationvec3(0.8275, 0.6863, 0.2157)
Embedded and terminal
RGB565 Notation0xD567Lossy
ANSI 256 (xterm) Notation38;5;178Nearest ΔE00 3.11

Every step of the maths

How RGB becomes HSV

Each step shows the values for the color above, as the converter computes them.

  1. Start rgb() rgb(211 175 55)
  2. Back 8-bit channels the three numbers are the bytes 211 175 55
  3. Back sRGB channels, 0 to 1 each byte ÷ 255 0.8275 0.6863 0.2157
  4. Then HSV V = max; S = (max − min) / max; H as in HSL hsv(46.2 73.9% 82.7%)

HSV

About HSV

HSV, also called HSB, is the model behind most color pickers: value is the brightest channel, and saturation is how far the others fall below it. It shares HSL's hue, but its saturation and value are different numbers.

How this page writes it

  • Written as hsv(h s% v%), a notation rather than CSS, which has no hsv() function.
  • Reads hsv() and hsb(), or three numbers in the field.

Watch for

  • The same saturation means different things: hsv(0 50% 100%) is a light pink, while hsl(0 50% 100%) is white.

Worked examples

RGB to HSV

Each row is the converter's own output, and a test re-runs every row.

Each example, converted
ColorRGBHSV
Whitergb(255 255 255)hsv(0 0% 100%)
Blackrgb(0 0 0)hsv(0 0% 0%)
Middle grayrgb(128 128 128)hsv(0 0% 50.2%)
Redrgb(255 0 0)hsv(0 100% 100%)
Greenrgb(0 255 0)hsv(120 100% 100%)
Bluergb(0 0 255)hsv(240 100% 100%)
Royal bluergb(37 99 235)hsv(221.2 84.3% 92.2%)
Goldrgb(211 175 55)hsv(46.2 73.9% 82.7%)

Next

Related converters

Method

Sources and testing

  • Conversions run in your browser with the site's shared color code; nothing you type is sent anywhere.
  • An automated test recomputes every value on this page and reads every format back.
  • Checked with a keyboard, the axe engine and Playwright in Chromium, in light and dark themes at phone and desktop widths. It has not yet been checked with a screen reader.

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