#18310B#18310B

#18310B is a dark, moderate yellow-green. Relative luminance 0.024; OKLCH L 28.3% C 0.069 H 136.6°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#18310B
RGB	rgb(24, 49, 11)
HSL	hsl(99, 63%, 12%)
HSV	hsv(99, 78%, 19%)
CMYK	cmyk(51%, 0%, 77.6%, 80.8%)
CIE-LAB	lab(17.53, -18.13, 20.18)
CIE-LCH	lch(17.53, 27.13, 131.93°)
OKLab	oklab(28.29% -0.0502 0.0475)
OKLCH	oklch(28.29% 0.069 136.6)
XYZ	xyz(1.5354, 2.4149, 0.7018)
Luminance	0.0242 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18310B #240B31

analogous

#2B310B #18310B #0B3111

triadic

#18310B #0B1831 #310B18

tetradic

#18310B #0B2B31 #240B31 #31110B

square

#18310B #0B2B31 #240B31 #31110B

split-complementary

#18310B #110B31 #310B2B

monochromatic

#0C1906 #0C1906 #18310B #306316 #499521

Accessibility & contrast

On white

14.16

#18310B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#18310B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18310B

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18310B	#FFFFFF	#000000	##FFFFFF
##18310B	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332C07

Deuteranopia (green-blind)

#302A0E

Tritanopia (blue-blind)

#172F29

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #18310b;
/* rgb */ color: rgb(24, 49, 11);
/* oklch */ color: oklch(28.3% 0.069 136.6);

Tailwind

colors: {
  custom: {
    50: '#57694c',
    500: '#18310b',
    950: '#000000',
  },
}

SCSS

$custom: #18310b;
$custom-light: #57694c;
$custom-dark: #000000;

JSON

{
  "hex": "#18310b",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 11
  },
  "hsl": {
    "h": 99.474,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.28294,
    "c": 0.06908,
    "h": 136.6
  },
  "luminance": 0.02415
}

Semantic roles & 50–950 ramp

primary

#18310B

secondary

#572A6E

accent

#41E6AE

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#030601

muted

#787A77

Preview Lab

Preview with #18310B

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

Preview Lab → · Contrast checker → · Palette generator →