#638418#638418

#638418 is a mid, vivid yellow-green. Relative luminance 0.192; OKLCH L 56.8% C 0.135 H 126.0°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#638418
RGB	rgb(99, 132, 24)
HSL	hsl(78, 69%, 31%)
HSV	hsv(78, 82%, 52%)
CMYK	cmyk(25%, 0%, 81.8%, 48.2%)
CIE-LAB	lab(50.94, -27.28, 49.72)
CIE-LCH	lch(50.94, 56.72, 118.75°)
OKLab	oklab(56.79% -0.0792 0.1091)
OKLCH	oklch(56.79% 0.135 126)
XYZ	xyz(13.5618, 19.2209, 3.8595)
Luminance	0.1922 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638418 #391884

analogous

#846F18 #638418 #2D8418

triadic

#638418 #186384 #841863

tetradic

#638418 #18846F #391884 #84182D

square

#638418 #18846F #391884 #84182D

split-complementary

#638418 #182D84 #6F1884

monochromatic

#151C05 #3C500F #638418 #8AB821 #AADB3B

Accessibility & contrast

On white

4.34

#638418 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#638418 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638418

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638418	#FFFFFF	#000000	##000000
##638418	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7B00

Deuteranopia (green-blind)

#877924

Tritanopia (blue-blind)

#687D70

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #638418;
/* rgb */ color: rgb(99, 132, 24);
/* oklch */ color: oklch(56.8% 0.135 126.0);

Tailwind

colors: {
  custom: {
    50: '#93a860',
    500: '#638418',
    950: '#000000',
  },
}

SCSS

$custom: #638418;
$custom-light: #93a860;
$custom-dark: #000000;

JSON

{
  "hex": "#638418",
  "rgb": {
    "r": 99,
    "g": 132,
    "b": 24
  },
  "hsl": {
    "h": 78.333,
    "s": 69.231,
    "l": 30.588
  },
  "oklch": {
    "l": 0.56788,
    "c": 0.13482,
    "h": 126
  },
  "luminance": 0.19221
}

Semantic roles & 50–950 ramp

primary

#638418

secondary

#6540B8

accent

#3CEC72

background

#F9FAF5

surface

#F2F4EA

border

#CCCEC6

text

#0D0F05

muted

#7E7F79

Preview Lab

Preview with #638418

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

Preview Lab → · Contrast checker → · Palette generator →