#638618#638618

#638618 is a mid, vivid yellow-green. Relative luminance 0.198; OKLCH L 57.3% C 0.137 H 126.6°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#638618
RGB	rgb(99, 134, 24)
HSL	hsl(79, 70%, 31%)
HSV	hsv(79, 82%, 53%)
CMYK	cmyk(26.1%, 0%, 82.1%, 47.5%)
CIE-LAB	lab(51.57, -28.25, 50.30)
CIE-LCH	lch(51.57, 57.69, 119.32°)
OKLab	oklab(57.3% -0.0818 0.1103)
OKLCH	oklch(57.3% 0.137 126.6)
XYZ	xyz(13.8356, 19.7685, 3.9508)
Luminance	0.1977 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638618 #3B1886

analogous

#867218 #638618 #2C8618

triadic

#638618 #186386 #861863

tetradic

#638618 #188672 #3B1886 #86182C

square

#638618 #188672 #3B1886 #86182C

split-complementary

#638618 #182C86 #721886

monochromatic

#161E05 #3D520F #638618 #89BA21 #A9DC3C

Accessibility & contrast

On white

4.24

#638618 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#638618 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638618

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638618	#FFFFFF	#000000	##000000
##638618	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#897A24

Tritanopia (blue-blind)

#677F72

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #638618;
/* rgb */ color: rgb(99, 134, 24);
/* oklch */ color: oklch(57.3% 0.137 126.6);

Tailwind

colors: {
  custom: {
    50: '#93a960',
    500: '#638618',
    950: '#000000',
  },
}

SCSS

$custom: #638618;
$custom-light: #93a960;
$custom-dark: #000000;

JSON

{
  "hex": "#638618",
  "rgb": {
    "r": 99,
    "g": 134,
    "b": 24
  },
  "hsl": {
    "h": 79.091,
    "s": 69.62,
    "l": 30.98
  },
  "oklch": {
    "l": 0.57299,
    "c": 0.13734,
    "h": 126.6
  },
  "luminance": 0.19769
}

Semantic roles & 50–950 ramp

primary

#638618

secondary

#6740BA

accent

#3BEC74

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D1005

muted

#7E7F79

Preview Lab

Preview with #638618

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

Preview Lab → · Contrast checker → · Palette generator →