#638C20#638C20

#638C20 is a mid, vivid yellow-green. Relative luminance 0.215; OKLCH L 58.9% C 0.141 H 128.6°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#638C20
RGB	rgb(99, 140, 32)
HSL	hsl(83, 63%, 34%)
HSV	hsv(83, 77%, 55%)
CMYK	cmyk(29.3%, 0%, 77.1%, 45.1%)
CIE-LAB	lab(53.51, -30.69, 49.48)
CIE-LCH	lch(53.51, 58.23, 121.81°)
OKLab	oklab(58.88% -0.0879 0.11)
OKLCH	oklch(58.88% 0.141 128.6)
XYZ	xyz(14.7844, 21.5127, 4.7397)
Luminance	0.2151 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638C20 #49208C

analogous

#8C7F20 #638C20 #2D8C20

triadic

#638C20 #20638C #8C2063

tetradic

#638C20 #208C7F #49208C #8C202D

square

#638C20 #208C7F #49208C #8C202D

split-complementary

#638C20 #202D8C #7F208C

monochromatic

#1D2809 #405A15 #638C20 #86BE2B #A3D750

Accessibility & contrast

On white

3.96

#638C20 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#638C20 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638C20

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638C20	#FFFFFF	#000000	##000000
##638C20	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938207

Deuteranopia (green-blind)

#8D7F2B

Tritanopia (blue-blind)

#668578

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #638c20;
/* rgb */ color: rgb(99, 140, 32);
/* oklch */ color: oklch(58.9% 0.141 128.6);

Tailwind

colors: {
  custom: {
    50: '#93ae64',
    500: '#638c20',
    950: '#000000',
  },
}

SCSS

$custom: #638c20;
$custom-light: #93ae64;
$custom-dark: #000000;

JSON

{
  "hex": "#638c20",
  "rgb": {
    "r": 99,
    "g": 140,
    "b": 32
  },
  "hsl": {
    "h": 82.778,
    "s": 62.791,
    "l": 33.725
  },
  "oklch": {
    "l": 0.58882,
    "c": 0.14074,
    "h": 128.6
  },
  "luminance": 0.21513
}

Semantic roles & 50–950 ramp

primary

#638C20

secondary

#774EBA

accent

#42E680

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638C20

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

Preview Lab → · Contrast checker → · Palette generator →