#818F18#818F18

#818F18 is a mid, vivid yellow. Relative luminance 0.244; OKLCH L 61.8% C 0.135 H 116.7°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#818F18
RGB	rgb(129, 143, 24)
HSL	hsl(67, 71%, 33%)
HSV	hsv(67, 83%, 56%)
CMYK	cmyk(9.8%, 0%, 83.2%, 43.9%)
CIE-LAB	lab(56.46, -19.78, 55.45)
CIE-LCH	lch(56.46, 58.88, 109.63°)
OKLab	oklab(61.79% -0.0604 0.1203)
OKLCH	oklch(61.79% 0.135 116.7)
XYZ	xyz(19.0411, 24.3783, 4.5664)
Luminance	0.2438 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#818F18 #26188F

analogous

#8F6118 #818F18 #458F18

triadic

#818F18 #18818F #8F1881

tetradic

#818F18 #188F61 #26188F #8F1845

square

#818F18 #188F61 #26188F #8F1845

split-complementary

#818F18 #18458F #61188F

monochromatic

#222606 #525B0F #818F18 #B0C321 #CDDF42

Accessibility & contrast

On white

3.57

#818F18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#818F18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #818F18

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##818F18	#FFFFFF	#000000	##000000
##818F18	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#998700

Deuteranopia (green-blind)

#988824

Tritanopia (blue-blind)

#8A867A

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #818f18;
/* rgb */ color: rgb(129, 143, 24);
/* oklch */ color: oklch(61.8% 0.135 116.7);

Tailwind

colors: {
  custom: {
    50: '#a9af62',
    500: '#818f18',
    950: '#000000',
  },
}

SCSS

$custom: #818f18;
$custom-light: #a9af62;
$custom-dark: #000000;

JSON

{
  "hex": "#818f18",
  "rgb": {
    "r": 129,
    "g": 143,
    "b": 24
  },
  "hsl": {
    "h": 67.059,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.61794,
    "c": 0.13457,
    "h": 116.7
  },
  "luminance": 0.24378
}

Semantic roles & 50–950 ramp

primary

#818F18

secondary

#5143C0

accent

#3AEE4F

background

#FAFAF6

surface

#F4F4EB

border

#CECEC6

text

#101006

muted

#7F7F7A

Preview Lab

Preview with #818F18

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

Preview Lab → · Contrast checker → · Palette generator →