#638820#638820

#638820 is a mid, vivid yellow-green. Relative luminance 0.204; OKLCH L 57.9% C 0.136 H 127.6°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#638820
RGB	rgb(99, 136, 32)
HSL	hsl(81, 62%, 33%)
HSV	hsv(81, 76%, 53%)
CMYK	cmyk(27.2%, 0%, 76.5%, 46.7%)
CIE-LAB	lab(52.25, -28.79, 48.27)
CIE-LCH	lch(52.25, 56.21, 120.82°)
OKLab	oklab(57.86% -0.0827 0.1074)
OKLCH	oklch(57.86% 0.136 127.6)
XYZ	xyz(14.2105, 20.3649, 4.5484)
Luminance	0.2036 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638820 #452088

analogous

#887920 #638820 #2F8820

triadic

#638820 #206388 #882063

tetradic

#638820 #208879 #452088 #88202F

square

#638820 #208879 #452088 #88202F

split-complementary

#638820 #202F88 #792088

monochromatic

#1B2509 #3F5614 #638820 #87BA2C #A5D54D

Accessibility & contrast

On white

4.14

#638820 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#638820 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638820

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638820	#FFFFFF	#000000	##000000
##638820	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E09

Deuteranopia (green-blind)

#8A7C2A

Tritanopia (blue-blind)

#678274

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #638820;
/* rgb */ color: rgb(99, 136, 32);
/* oklch */ color: oklch(57.9% 0.136 127.6);

Tailwind

colors: {
  custom: {
    50: '#93ab64',
    500: '#638820',
    950: '#000000',
  },
}

SCSS

$custom: #638820;
$custom-light: #93ab64;
$custom-dark: #000000;

JSON

{
  "hex": "#638820",
  "rgb": {
    "r": 99,
    "g": 136,
    "b": 32
  },
  "hsl": {
    "h": 81.346,
    "s": 61.905,
    "l": 32.941
  },
  "oklch": {
    "l": 0.57859,
    "c": 0.13555,
    "h": 127.6
  },
  "luminance": 0.20365
}

Semantic roles & 50–950 ramp

primary

#638820

secondary

#724CB8

accent

#43E57D

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638820

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

Preview Lab → · Contrast checker → · Palette generator →