#818D18#818D18

#818D18 is a mid, vivid yellow. Relative luminance 0.238; OKLCH L 61.3% C 0.132 H 115.8°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#818D18
RGB	rgb(129, 141, 24)
HSL	hsl(66, 71%, 32%)
HSV	hsv(66, 83%, 55%)
CMYK	cmyk(8.5%, 0%, 83%, 44.7%)
CIE-LAB	lab(55.87, -18.75, 54.93)
CIE-LCH	lch(55.87, 58.05, 108.85°)
OKLab	oklab(61.32% -0.0576 0.1192)
OKLCH	oklch(61.32% 0.132 115.8)
XYZ	xyz(18.7436, 23.7831, 4.4672)
Luminance	0.2378 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#818D18 #24188D

analogous

#8D5F18 #818D18 #468D18

triadic

#818D18 #18818D #8D1881

tetradic

#818D18 #188D5F #24188D #8D1846

square

#818D18 #188D5F #24188D #8D1846

split-complementary

#818D18 #18468D #5F188D

monochromatic

#212406 #51590F #818D18 #B1C121 #CEDF41

Accessibility & contrast

On white

3.65

#818D18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#818D18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #818D18

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##818D18	#FFFFFF	#000000	##000000
##818D18	1.00	3.65	5.76	5.76
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#988500

Deuteranopia (green-blind)

#978724

Tritanopia (blue-blind)

#8A8478

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #818d18;
/* rgb */ color: rgb(129, 141, 24);
/* oklch */ color: oklch(61.3% 0.132 115.8);

Tailwind

colors: {
  custom: {
    50: '#a9ae62',
    500: '#818d18',
    950: '#000000',
  },
}

SCSS

$custom: #818d18;
$custom-light: #a9ae62;
$custom-dark: #000000;

JSON

{
  "hex": "#818d18",
  "rgb": {
    "r": 129,
    "g": 141,
    "b": 24
  },
  "hsl": {
    "h": 66.154,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.61316,
    "c": 0.13232,
    "h": 115.8
  },
  "luminance": 0.23783
}

Semantic roles & 50–950 ramp

primary

#818D18

secondary

#4E42BF

accent

#3AEE4D

background

#FAFAF6

surface

#F4F4EB

border

#CECEC6

text

#101006

muted

#7F7F7A

Preview Lab

Preview with #818D18

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

Preview Lab → · Contrast checker → · Palette generator →