#330B04#330B04

#330B04 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 21.9% C 0.067 H 33.8°. Best body text is #FFFFFF at 17.64:1 contrast (WCAG AA passes).

Color values

HEX	#330B04
RGB	rgb(51, 11, 4)
HSL	hsl(9, 85%, 11%)
HSV	hsv(9, 92%, 20%)
CMYK	cmyk(0%, 78.4%, 92.2%, 80%)
CIE-LAB	lab(8.59, 19.64, 11.67)
CIE-LCH	lch(8.59, 22.84, 30.71°)
OKLab	oklab(21.94% 0.0554 0.037)
OKLCH	oklch(21.94% 0.067 33.8)
XYZ	xyz(1.5070, 0.9521, 0.2193)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330B04 #042C33

analogous

#330414 #330B04 #332204

triadic

#330B04 #04330B #0B0433

tetradic

#330B04 #143304 #042C33 #220433

square

#330B04 #143304 #042C33 #220433

split-complementary

#330B04 #043322 #041433

monochromatic

#1C0602 #1C0602 #330B04 #6C1708 #A4230D

Accessibility & contrast

On white

17.64

#330B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#330B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330B04

17.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330B04	#FFFFFF	#000000	##FFFFFF
##330B04	1.00	17.64	1.19	17.64
#FFFFFF	17.64	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171303

Deuteranopia (green-blind)

#201C03

Tritanopia (blue-blind)

#390209

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #330b04;
/* rgb */ color: rgb(51, 11, 4);
/* oklch */ color: oklch(21.9% 0.067 33.8);

Tailwind

colors: {
  custom: {
    50: '#6e4c48',
    500: '#330b04',
    950: '#000000',
  },
}

SCSS

$custom: #330b04;
$custom-light: #6e4c48;
$custom-dark: #000000;

JSON

{
  "hex": "#330b04",
  "rgb": {
    "r": 51,
    "g": 11,
    "b": 4
  },
  "hsl": {
    "h": 8.936,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21943,
    "c": 0.06659,
    "h": 33.8
  },
  "luminance": 0.00952
}

Semantic roles & 50–950 ramp

primary

#330B04

secondary

#1D6875

accent

#DDFC2C

background

#F6F4F4

surface

#ECE7E6

border

#C7C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #330B04

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

Preview Lab → · Contrast checker → · Palette generator →