#637917#637917

#637917 is a mid, vivid yellow-green. Relative luminance 0.164; OKLCH L 54.0% C 0.121 H 122.0°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#637917
RGB	rgb(99, 121, 23)
HSL	hsl(73, 68%, 28%)
HSV	hsv(73, 81%, 47%)
CMYK	cmyk(18.2%, 0%, 81%, 52.5%)
CIE-LAB	lab(47.48, -21.84, 46.88)
CIE-LCH	lch(47.48, 51.71, 114.98°)
OKLab	oklab(53.98% -0.0644 0.1029)
OKLCH	oklch(53.98% 0.121 122)
XYZ	xyz(12.1378, 16.3892, 3.3344)
Luminance	0.1639 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637917 #2D1779

analogous

#795E17 #637917 #327917

triadic

#637917 #176379 #791763

tetradic

#637917 #17795E #2D1779 #791732

square

#637917 #17795E #2D1779 #791732

split-complementary

#637917 #173279 #5E1779

monochromatic

#151A05 #39460D #637917 #8DAC21 #B3D832

Accessibility & contrast

On white

4.91

#637917 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#637917 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637917

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637917	#FFFFFF	#000000	##FFFFFF
##637917	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#817100

Deuteranopia (green-blind)

#7E7121

Tritanopia (blue-blind)

#697267

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #637917;
/* rgb */ color: rgb(99, 121, 23);
/* oklch */ color: oklch(54.0% 0.121 122.0);

Tailwind

colors: {
  custom: {
    50: '#939f5d',
    500: '#637917',
    950: '#000000',
  },
}

SCSS

$custom: #637917;
$custom-light: #939f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#637917",
  "rgb": {
    "r": 99,
    "g": 121,
    "b": 23
  },
  "hsl": {
    "h": 73.469,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.53982,
    "c": 0.12141,
    "h": 122
  },
  "luminance": 0.16389
}

Semantic roles & 50–950 ramp

primary

#637917

secondary

#573EAE

accent

#3DEB64

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #637917

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →