#818C18#818C18

#818C18 is a mid, vivid yellow. Relative luminance 0.235; OKLCH L 61.1% C 0.131 H 115.3°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#818C18
RGB	rgb(129, 140, 24)
HSL	hsl(66, 71%, 32%)
HSV	hsv(66, 83%, 55%)
CMYK	cmyk(7.9%, 0%, 82.9%, 45.1%)
CIE-LAB	lab(55.57, -18.23, 54.67)
CIE-LCH	lch(55.57, 57.64, 108.44°)
OKLab	oklab(61.08% -0.0561 0.1186)
OKLCH	oklch(61.08% 0.131 115.3)
XYZ	xyz(18.5968, 23.4896, 4.4183)
Luminance	0.2349 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#818C18 #23188C

analogous

#8C5D18 #818C18 #478C18

triadic

#818C18 #18818C #8C1881

tetradic

#818C18 #188C5D #23188C #8C1847

square

#818C18 #188C5D #23188C #8C1847

split-complementary

#818C18 #18478C #5D188C

monochromatic

#212406 #51580F #818C18 #B1C021 #CFDE40

Accessibility & contrast

On white

3.69

#818C18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#818C18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #818C18

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##818C18	#FFFFFF	#000000	##000000
##818C18	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#978400

Deuteranopia (green-blind)

#968624

Tritanopia (blue-blind)

#8A8377

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #818c18;
/* rgb */ color: rgb(129, 140, 24);
/* oklch */ color: oklch(61.1% 0.131 115.3);

Tailwind

colors: {
  custom: {
    50: '#a9ad61',
    500: '#818c18',
    950: '#000000',
  },
}

SCSS

$custom: #818c18;
$custom-light: #a9ad61;
$custom-dark: #000000;

JSON

{
  "hex": "#818c18",
  "rgb": {
    "r": 129,
    "g": 140,
    "b": 24
  },
  "hsl": {
    "h": 65.69,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.61078,
    "c": 0.13121,
    "h": 115.3
  },
  "luminance": 0.23489
}

Semantic roles & 50–950 ramp

primary

#818C18

secondary

#4D41BF

accent

#3AED4B

background

#FAFAF6

surface

#F4F4EB

border

#CECEC6

text

#101005

muted

#7F7F7A

Preview Lab

Preview with #818C18

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

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