#638317#638317

#638317 is a mid, vivid yellow-green. Relative luminance 0.189; OKLCH L 56.5% C 0.134 H 125.6°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#638317
RGB	rgb(99, 131, 23)
HSL	hsl(78, 70%, 30%)
HSV	hsv(78, 82%, 51%)
CMYK	cmyk(24.4%, 0%, 82.4%, 48.6%)
CIE-LAB	lab(50.63, -26.84, 49.74)
CIE-LCH	lch(50.63, 56.52, 118.35°)
OKLab	oklab(56.53% -0.0781 0.109)
OKLCH	oklch(56.53% 0.134 125.6)
XYZ	xyz(13.4167, 18.9469, 3.7607)
Luminance	0.1895 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638317 #371783

analogous

#836D17 #638317 #2D8317

triadic

#638317 #176383 #831763

tetradic

#638317 #17836D #371783 #83172D

square

#638317 #17836D #371783 #83172D

split-complementary

#638317 #172D83 #6D1783

monochromatic

#141B05 #3C4F0E #638317 #8AB720 #ACDC38

Accessibility & contrast

On white

4.38

#638317 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#638317 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638317

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638317	#FFFFFF	#000000	##000000
##638317	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7A00

Deuteranopia (green-blind)

#867823

Tritanopia (blue-blind)

#687C6F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #638317;
/* rgb */ color: rgb(99, 131, 23);
/* oklch */ color: oklch(56.5% 0.134 125.6);

Tailwind

colors: {
  custom: {
    50: '#93a75f',
    500: '#638317',
    950: '#000000',
  },
}

SCSS

$custom: #638317;
$custom-light: #93a75f;
$custom-dark: #000000;

JSON

{
  "hex": "#638317",
  "rgb": {
    "r": 99,
    "g": 131,
    "b": 23
  },
  "hsl": {
    "h": 77.778,
    "s": 70.13,
    "l": 30.196
  },
  "oklch": {
    "l": 0.56527,
    "c": 0.13404,
    "h": 125.6
  },
  "luminance": 0.18947
}

Semantic roles & 50–950 ramp

primary

#638317

secondary

#623FB7

accent

#3BED70

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638317

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

Preview Lab → · Contrast checker → · Palette generator →