#18210A#18210A

#18210A is a very dark, muted yellow-green. Relative luminance 0.013; OKLCH L 23.2% C 0.042 H 127.1°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#18210A
RGB	rgb(24, 33, 10)
HSL	hsl(83, 53%, 8%)
HSV	hsv(83, 70%, 13%)
CMYK	cmyk(27.3%, 0%, 69.7%, 87.1%)
CIE-LAB	lab(11.30, -9.03, 12.51)
CIE-LCH	lch(11.30, 15.43, 125.81°)
OKLab	oklab(23.23% -0.0253 0.0334)
OKLCH	oklch(23.23% 0.042 127.1)
XYZ	xyz(0.9753, 1.3038, 0.4874)
Luminance	0.0130 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18210A #130A21

analogous

#211E0A #18210A #0C210A

triadic

#18210A #0A1821 #210A18

tetradic

#18210A #0A211E #130A21 #210A0C

square

#18210A #0A211E #130A21 #210A0C

split-complementary

#18210A #0A0C21 #1E0A21

monochromatic

#111707 #111707 #18210A #3A5018 #5C7F26

Accessibility & contrast

On white

16.66

#18210A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#18210A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18210A

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18210A	#FFFFFF	#000000	##FFFFFF
##18210A	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#231E08

Deuteranopia (green-blind)

#221E0B

Tritanopia (blue-blind)

#191F1C

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #18210a;
/* rgb */ color: rgb(24, 33, 10);
/* oklch */ color: oklch(23.2% 0.042 127.1);

Tailwind

colors: {
  custom: {
    50: '#555c4b',
    500: '#18210a',
    950: '#000000',
  },
}

SCSS

$custom: #18210a;
$custom-light: #555c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#18210a",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 10
  },
  "hsl": {
    "h": 83.478,
    "s": 53.488,
    "l": 8.431
  },
  "oklch": {
    "l": 0.23225,
    "c": 0.04193,
    "h": 127.1
  },
  "luminance": 0.01304
}

Semantic roles & 50–950 ramp

primary

#18210A

secondary

#3E2A5D

accent

#4BDD84

background

#F4F5F4

surface

#E7E9E7

border

#C3C5C3

text

#030401

muted

#787977

Preview Lab

Preview with #18210A

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

Preview Lab → · Contrast checker → · Palette generator →