#818C1F#818C1F

#818C1F is a mid, vivid yellow. Relative luminance 0.235; OKLCH L 61.1% C 0.128 H 115.4°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#818C1F
RGB	rgb(129, 140, 31)
HSL	hsl(66, 64%, 34%)
HSV	hsv(66, 78%, 55%)
CMYK	cmyk(7.9%, 0%, 77.9%, 45.1%)
CIE-LAB	lab(55.61, -17.95, 52.55)
CIE-LCH	lch(55.61, 55.53, 108.86°)
OKLab	oklab(61.11% -0.0548 0.1154)
OKLCH	oklch(61.11% 0.128 115.4)
XYZ	xyz(18.6792, 23.5225, 4.8524)
Luminance	0.2352 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#818C1F #2A1F8C

analogous

#8C601F #818C1F #4A8C1F

triadic

#818C1F #1F818C #8C1F81

tetradic

#818C1F #1F8C60 #2A1F8C #8C1F4A

square

#818C1F #1F8C60 #2A1F8C #8C1F4A

split-complementary

#818C1F #1F4A8C #601F8C

monochromatic

#252809 #535A14 #818C1F #AFBE2A #CAD84E

Accessibility & contrast

On white

3.68

#818C1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#818C1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #818C1F

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##818C1F	#FFFFFF	#000000	##000000
##818C1F	1.00	3.68	5.70	5.70
#FFFFFF	3.68	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)

#968503

Deuteranopia (green-blind)

#968629

Tritanopia (blue-blind)

#8A8478

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #818c1f;
/* rgb */ color: rgb(129, 140, 31);
/* oklch */ color: oklch(61.1% 0.128 115.4);

Tailwind

colors: {
  custom: {
    50: '#a9ad64',
    500: '#818c1f',
    950: '#000000',
  },
}

SCSS

$custom: #818c1f;
$custom-light: #a9ad64;
$custom-dark: #000000;

JSON

{
  "hex": "#818c1f",
  "rgb": {
    "r": 129,
    "g": 140,
    "b": 31
  },
  "hsl": {
    "h": 66.055,
    "s": 63.743,
    "l": 33.529
  },
  "oklch": {
    "l": 0.61115,
    "c": 0.12771,
    "h": 115.4
  },
  "luminance": 0.23522
}

Semantic roles & 50–950 ramp

primary

#818C1F

secondary

#574CBB

accent

#41E752

background

#FAFAF6

surface

#F4F4EB

border

#CECEC6

text

#101006

muted

#7F7F7A

Preview Lab

Preview with #818C1F

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

Preview Lab → · Contrast checker → · Palette generator →