#638D22#638D22

#638D22 is a mid, vivid yellow-green. Relative luminance 0.218; OKLCH L 59.2% C 0.141 H 129.0°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#638D22
RGB	rgb(99, 141, 34)
HSL	hsl(84, 61%, 34%)
HSV	hsv(84, 76%, 55%)
CMYK	cmyk(29.8%, 0%, 75.9%, 44.7%)
CIE-LAB	lab(53.83, -31.05, 49.09)
CIE-LCH	lch(53.83, 58.08, 122.31°)
OKLab	oklab(59.15% -0.0887 0.1095)
OKLCH	oklch(59.15% 0.141 129)
XYZ	xyz(14.9592, 21.8175, 4.9361)
Luminance	0.2182 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638D22 #4C228D

analogous

#8D8222 #638D22 #2E8D22

triadic

#638D22 #22638D #8D2263

tetradic

#638D22 #228D82 #4C228D #8D222E

square

#638D22 #228D82 #4C228D #8D222E

split-complementary

#638D22 #222E8D #82228D

monochromatic

#1E2A0A #405C16 #638D22 #86BE2E #A3D654

Accessibility & contrast

On white

3.92

#638D22 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#638D22 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638D22

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638D22	#FFFFFF	#000000	##000000
##638D22	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94830C

Deuteranopia (green-blind)

#8E802C

Tritanopia (blue-blind)

#668779

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638d22;
/* rgb */ color: rgb(99, 141, 34);
/* oklch */ color: oklch(59.2% 0.141 129.0);

Tailwind

colors: {
  custom: {
    50: '#93ae65',
    500: '#638d22',
    950: '#000000',
  },
}

SCSS

$custom: #638d22;
$custom-light: #93ae65;
$custom-dark: #000000;

JSON

{
  "hex": "#638d22",
  "rgb": {
    "r": 99,
    "g": 141,
    "b": 34
  },
  "hsl": {
    "h": 83.551,
    "s": 61.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.59152,
    "c": 0.14085,
    "h": 129
  },
  "luminance": 0.21818
}

Semantic roles & 50–950 ramp

primary

#638D22

secondary

#7A51B9

accent

#44E483

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638D22

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

Preview Lab → · Contrast checker → · Palette generator →