#33100B#33100B

#33100B is a very dark, muted red. Relative luminance 0.011; OKLCH L 22.9% C 0.058 H 30.3°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#33100B
RGB	rgb(51, 16, 11)
HSL	hsl(8, 65%, 12%)
HSV	hsv(8, 78%, 20%)
CMYK	cmyk(0%, 68.6%, 78.4%, 80%)
CIE-LAB	lab(9.79, 17.28, 10.53)
CIE-LCH	lch(9.79, 20.24, 31.35°)
OKLab	oklab(22.89% 0.0501 0.0293)
OKLCH	oklch(22.89% 0.058 30.3)
XYZ	xyz(1.6111, 1.0988, 0.4438)
Luminance	0.0110 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33100B #0B2E33

analogous

#330B1A #33100B #33240B

triadic

#33100B #0B3310 #100B33

tetradic

#33100B #1A330B #0B2E33 #240B33

square

#33100B #1A330B #0B2E33 #240B33

split-complementary

#33100B #0B3324 #0B1A33

monochromatic

#190805 #190805 #33100B #652016 #983021

Accessibility & contrast

On white

17.22

#33100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#33100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33100B

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33100B	#FFFFFF	#000000	##FFFFFF
##33100B	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19160A

Deuteranopia (green-blind)

#221E0A

Tritanopia (blue-blind)

#39090F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #33100b;
/* rgb */ color: rgb(51, 16, 11);
/* oklch */ color: oklch(22.9% 0.058 30.3);

Tailwind

colors: {
  custom: {
    50: '#6e4f4b',
    500: '#33100b',
    950: '#000000',
  },
}

SCSS

$custom: #33100b;
$custom-light: #6e4f4b;
$custom-dark: #000000;

JSON

{
  "hex": "#33100b",
  "rgb": {
    "r": 51,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 7.5,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22889,
    "c": 0.05806,
    "h": 30.3
  },
  "luminance": 0.01099
}

Semantic roles & 50–950 ramp

primary

#33100B

secondary

#2A6770

accent

#D3E840

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070201

muted

#7A7877

Preview Lab

Preview with #33100B

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

Preview Lab → · Contrast checker → · Palette generator →