#21310A#21310A

#21310A is a dark, moderate yellow-green. Relative luminance 0.025; OKLCH L 28.9% C 0.064 H 129.0°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#21310A
RGB	rgb(33, 49, 10)
HSL	hsl(85, 66%, 12%)
HSV	hsv(85, 80%, 19%)
CMYK	cmyk(32.7%, 0%, 79.6%, 80.8%)
CIE-LAB	lab(18.11, -14.22, 21.44)
CIE-LCH	lch(18.11, 25.73, 123.57°)
OKLab	oklab(28.92% -0.0403 0.0499)
OKLCH	oklch(28.92% 0.064 129)
XYZ	xyz(1.7803, 2.5418, 0.6839)
Luminance	0.0254 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21310A #1A0A31

analogous

#312E0A #21310A #0E310A

triadic

#21310A #0A2131 #310A21

tetradic

#21310A #0A312E #1A0A31 #310A0E

square

#21310A #0A312E #1A0A31 #310A0E

split-complementary

#21310A #0A0E31 #2E0A31

monochromatic

#111905 #111905 #21310A #436414 #65971F

Accessibility & contrast

On white

13.92

#21310A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#21310A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21310A

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21310A	#FFFFFF	#000000	##FFFFFF
##21310A	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342D05

Deuteranopia (green-blind)

#322C0D

Tritanopia (blue-blind)

#222E29

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #21310a;
/* rgb */ color: rgb(33, 49, 10);
/* oklch */ color: oklch(28.9% 0.064 129.0);

Tailwind

colors: {
  custom: {
    50: '#5e694c',
    500: '#21310a',
    950: '#000000',
  },
}

SCSS

$custom: #21310a;
$custom-light: #5e694c;
$custom-dark: #000000;

JSON

{
  "hex": "#21310a",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 10
  },
  "hsl": {
    "h": 84.615,
    "s": 66.102,
    "l": 11.569
  },
  "oklch": {
    "l": 0.28919,
    "c": 0.06417,
    "h": 129
  },
  "luminance": 0.02542
}

Semantic roles & 50–950 ramp

primary

#21310A

secondary

#45296E

accent

#3FE985

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040601

muted

#797A77

Preview Lab

Preview with #21310A

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

Preview Lab → · Contrast checker → · Palette generator →