#638720#638720

#638720 is a mid, vivid yellow-green. Relative luminance 0.201; OKLCH L 57.6% C 0.134 H 127.3°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#638720
RGB	rgb(99, 135, 32)
HSL	hsl(81, 62%, 33%)
HSV	hsv(81, 76%, 53%)
CMYK	cmyk(26.7%, 0%, 76.3%, 47.1%)
CIE-LAB	lab(51.93, -28.31, 47.97)
CIE-LCH	lch(51.93, 55.70, 120.55°)
OKLab	oklab(57.6% -0.0814 0.1068)
OKLCH	oklch(57.6% 0.134 127.3)
XYZ	xyz(14.0703, 20.0846, 4.5016)
Luminance	0.2009 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638720 #442087

analogous

#877820 #638720 #2F8720

triadic

#638720 #206387 #872063

tetradic

#638720 #208778 #442087 #87202F

square

#638720 #208778 #442087 #87202F

split-complementary

#638720 #202F87 #782087

monochromatic

#1A2409 #3F5614 #638720 #87B82C #A5D54D

Accessibility & contrast

On white

4.19

#638720 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#638720 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638720

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638720	#FFFFFF	#000000	##000000
##638720	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7D0A

Deuteranopia (green-blind)

#897B2A

Tritanopia (blue-blind)

#678173

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #638720;
/* rgb */ color: rgb(99, 135, 32);
/* oklch */ color: oklch(57.6% 0.134 127.3);

Tailwind

colors: {
  custom: {
    50: '#93aa64',
    500: '#638720',
    950: '#000000',
  },
}

SCSS

$custom: #638720;
$custom-light: #93aa64;
$custom-dark: #000000;

JSON

{
  "hex": "#638720",
  "rgb": {
    "r": 99,
    "g": 135,
    "b": 32
  },
  "hsl": {
    "h": 80.971,
    "s": 61.677,
    "l": 32.745
  },
  "oklch": {
    "l": 0.57604,
    "c": 0.13426,
    "h": 127.3
  },
  "luminance": 0.20085
}

Semantic roles & 50–950 ramp

primary

#638720

secondary

#714BB8

accent

#43E57C

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638720

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

Preview Lab → · Contrast checker → · Palette generator →