#637418#637418

#637418 is a mid, moderate yellow-green. Relative luminance 0.152; OKLCH L 52.7% C 0.115 H 119.9°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#637418
RGB	rgb(99, 116, 24)
HSL	hsl(71, 66%, 27%)
HSV	hsv(71, 79%, 45%)
CMYK	cmyk(14.7%, 0%, 79.3%, 54.5%)
CIE-LAB	lab(45.92, -19.19, 45.10)
CIE-LCH	lch(45.92, 49.01, 113.06°)
OKLab	oklab(52.72% -0.0571 0.0993)
OKLCH	oklch(52.72% 0.115 119.9)
XYZ	xyz(11.5561, 15.2094, 3.1909)
Luminance	0.1521 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#637418 #291874

analogous

#745718 #637418 #357418

triadic

#637418 #186374 #741863

tetradic

#637418 #187457 #291874 #741835

square

#637418 #187457 #291874 #741835

split-complementary

#637418 #183574 #571874

monochromatic

#161905 #38410E #637418 #8EA722 #B6D532

Accessibility & contrast

On white

5.20

#637418 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#637418 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #637418

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##637418	#FFFFFF	#000000	##FFFFFF
##637418	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6D02

Deuteranopia (green-blind)

#7A6D21

Tritanopia (blue-blind)

#696D63

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #637418;
/* rgb */ color: rgb(99, 116, 24);
/* oklch */ color: oklch(52.7% 0.115 119.9);

Tailwind

colors: {
  custom: {
    50: '#929c5d',
    500: '#637418',
    950: '#000000',
  },
}

SCSS

$custom: #637418;
$custom-light: #929c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#637418",
  "rgb": {
    "r": 99,
    "g": 116,
    "b": 24
  },
  "hsl": {
    "h": 71.087,
    "s": 65.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.52724,
    "c": 0.11457,
    "h": 119.9
  },
  "luminance": 0.15209
}

Semantic roles & 50–950 ramp

primary

#637418

secondary

#523FA9

accent

#3FE95E

background

#F9F9F5

surface

#F2F2E9

border

#CCCCC5

text

#0D0E05

muted

#7E7E79

Preview Lab

Preview with #637418

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

Preview Lab → · Contrast checker → · Palette generator →