#638D24#638D24

#638D24 is a mid, vivid yellow-green. Relative luminance 0.218; OKLCH L 59.2% C 0.140 H 129.2°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#638D24
RGB	rgb(99, 141, 36)
HSL	hsl(84, 59%, 35%)
HSV	hsv(84, 74%, 55%)
CMYK	cmyk(29.8%, 0%, 74.5%, 44.7%)
CIE-LAB	lab(53.85, -30.92, 48.36)
CIE-LCH	lch(53.85, 57.41, 122.59°)
OKLab	oklab(59.17% -0.0882 0.1083)
OKLCH	oklch(59.17% 0.14 129.2)
XYZ	xyz(14.9889, 21.8294, 5.0925)
Luminance	0.2183 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638D24 #4E248D

analogous

#8D8324 #638D24 #2F8D24

triadic

#638D24 #24638D #8D2463

tetradic

#638D24 #248D83 #4E248D #8D242F

square

#638D24 #248D83 #4E248D #8D242F

split-complementary

#638D24 #242F8D #83248D

monochromatic

#1F2B0B #415C18 #638D24 #85BE30 #A2D457

Accessibility & contrast

On white

3.91

#638D24 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#638D24 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638D24

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638D24	#FFFFFF	#000000	##000000
##638D24	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#948310

Deuteranopia (green-blind)

#8E802E

Tritanopia (blue-blind)

#668779

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638d24;
/* rgb */ color: rgb(99, 141, 36);
/* oklch */ color: oklch(59.2% 0.140 129.2);

Tailwind

colors: {
  custom: {
    50: '#93ae66',
    500: '#638d24',
    950: '#000000',
  },
}

SCSS

$custom: #638d24;
$custom-light: #93ae66;
$custom-dark: #000000;

JSON

{
  "hex": "#638d24",
  "rgb": {
    "r": 99,
    "g": 141,
    "b": 36
  },
  "hsl": {
    "h": 84,
    "s": 59.322,
    "l": 34.706
  },
  "oklch": {
    "l": 0.59166,
    "c": 0.13962,
    "h": 129.2
  },
  "luminance": 0.2183
}

Semantic roles & 50–950 ramp

primary

#638D24

secondary

#7C54B8

accent

#45E384

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638D24

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

Preview Lab → · Contrast checker → · Palette generator →