#818B1F#818B1F

#818B1F is a mid, vivid yellow. Relative luminance 0.232; OKLCH L 60.9% C 0.127 H 114.9°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#818B1F
RGB	rgb(129, 139, 31)
HSL	hsl(66, 64%, 33%)
HSV	hsv(66, 78%, 55%)
CMYK	cmyk(7.2%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(55.31, -17.43, 52.28)
CIE-LCH	lch(55.31, 55.11, 108.44°)
OKLab	oklab(60.88% -0.0533 0.1148)
OKLCH	oklch(60.88% 0.127 114.9)
XYZ	xyz(18.5337, 23.2316, 4.8039)
Luminance	0.2323 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#818B1F #291F8B

analogous

#8B5F1F #818B1F #4B8B1F

triadic

#818B1F #1F818B #8B1F81

tetradic

#818B1F #1F8B5F #291F8B #8B1F4B

square

#818B1F #1F8B5F #291F8B #8B1F4B

split-complementary

#818B1F #1F4B8B #5F1F8B

monochromatic

#242709 #535914 #818B1F #AFBD2A #CBD74D

Accessibility & contrast

On white

3.72

#818B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#818B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #818B1F

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##818B1F	#FFFFFF	#000000	##000000
##818B1F	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#958404

Deuteranopia (green-blind)

#958529

Tritanopia (blue-blind)

#8A8377

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #818b1f;
/* rgb */ color: rgb(129, 139, 31);
/* oklch */ color: oklch(60.9% 0.127 114.9);

Tailwind

colors: {
  custom: {
    50: '#a9ac64',
    500: '#818b1f',
    950: '#000000',
  },
}

SCSS

$custom: #818b1f;
$custom-light: #a9ac64;
$custom-dark: #000000;

JSON

{
  "hex": "#818b1f",
  "rgb": {
    "r": 129,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 65.556,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.60878,
    "c": 0.12657,
    "h": 114.9
  },
  "luminance": 0.23231
}

Semantic roles & 50–950 ramp

primary

#818B1F

secondary

#564CBA

accent

#41E751

background

#FAFAF6

surface

#F4F4EB

border

#CECEC6

text

#101006

muted

#7F7F7A

Preview Lab

Preview with #818B1F

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

Preview Lab → · Contrast checker → · Palette generator →