#330B0D#330B0D

#330B0D is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.1% C 0.064 H 21.3°. Best body text is #FFFFFF at 17.58:1 contrast (WCAG AA passes).

Color values

HEX	#330B0D
RGB	rgb(51, 11, 13)
HSL	hsl(357, 65%, 12%)
HSV	hsv(357, 78%, 20%)
CMYK	cmyk(0%, 78.4%, 74.5%, 80%)
CIE-LAB	lab(8.76, 20.28, 8.15)
CIE-LCH	lch(8.76, 21.86, 21.88°)
OKLab	oklab(22.13% 0.06 0.0234)
OKLCH	oklch(22.13% 0.064 21.3)
XYZ	xyz(1.5577, 0.9724, 0.4864)
Luminance	0.0097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330B0D #0B3331

analogous

#330B21 #330B0D #331D0B

triadic

#330B0D #0D330B #0B0D33

tetradic

#330B0D #21330B #0B3331 #1D0B33

square

#330B0D #21330B #0B3331 #1D0B33

split-complementary

#330B0D #0B331D #0B2133

monochromatic

#190506 #190506 #330B0D #65161A #982127

Accessibility & contrast

On white

17.58

#330B0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#330B0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330B0D

17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330B0D	#FFFFFF	#000000	##FFFFFF
##330B0D	1.00	17.58	1.19	17.58
#FFFFFF	17.58	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140D

Deuteranopia (green-blind)

#201C0C

Tritanopia (blue-blind)

#39040C

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #330b0d;
/* rgb */ color: rgb(51, 11, 13);
/* oklch */ color: oklch(22.1% 0.064 21.3);

Tailwind

colors: {
  custom: {
    50: '#6e4c4c',
    500: '#330b0d',
    950: '#000000',
  },
}

SCSS

$custom: #330b0d;
$custom-light: #6e4c4c;
$custom-dark: #000000;

JSON

{
  "hex": "#330b0d",
  "rgb": {
    "r": 51,
    "g": 11,
    "b": 13
  },
  "hsl": {
    "h": 357,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22128,
    "c": 0.06442,
    "h": 21.3
  },
  "luminance": 0.00972
}

Semantic roles & 50–950 ramp

primary

#330B0D

secondary

#2A706C

accent

#E8DF40

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #330B0D

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

Preview Lab → · Contrast checker → · Palette generator →