#330A0B#330A0B

#330A0B is a very dark, moderate red. Relative luminance 0.009; OKLCH L 21.9% C 0.066 H 23.1°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#330A0B
RGB	rgb(51, 10, 11)
HSL	hsl(359, 67%, 12%)
HSV	hsv(359, 80%, 20%)
CMYK	cmyk(0%, 80.4%, 78.4%, 80%)
CIE-LAB	lab(8.53, 20.64, 8.72)
CIE-LCH	lch(8.53, 22.41, 22.90°)
OKLab	oklab(21.94% 0.0607 0.0259)
OKLCH	oklch(21.94% 0.066 23.1)
XYZ	xyz(1.5343, 0.9453, 0.4182)
Luminance	0.0095 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330A0B #0A3332

analogous

#330A20 #330A0B #331E0A

triadic

#330A0B #0B330A #0A0B33

tetradic

#330A0B #20330A #0A3332 #1E0A33

square

#330A0B #20330A #0A3332 #1E0A33

split-complementary

#330A0B #0A331E #0A2033

monochromatic

#1A0506 #1A0506 #330A0B #661416 #991E21

Accessibility & contrast

On white

17.66

#330A0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#330A0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330A0B

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330A0B	#FFFFFF	#000000	##FFFFFF
##330A0B	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15130B

Deuteranopia (green-blind)

#1F1C0A

Tritanopia (blue-blind)

#39020B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #330a0b;
/* rgb */ color: rgb(51, 10, 11);
/* oklch */ color: oklch(21.9% 0.066 23.1);

Tailwind

colors: {
  custom: {
    50: '#6e4c4b',
    500: '#330a0b',
    950: '#000000',
  },
}

SCSS

$custom: #330a0b;
$custom-light: #6e4c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#330a0b",
  "rgb": {
    "r": 51,
    "g": 10,
    "b": 11
  },
  "hsl": {
    "h": 358.537,
    "s": 67.213,
    "l": 11.961
  },
  "oklch": {
    "l": 0.21941,
    "c": 0.06597,
    "h": 23.1
  },
  "luminance": 0.00945
}

Semantic roles & 50–950 ramp

primary

#330A0B

secondary

#28706F

accent

#EAE63E

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #330A0B

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

Preview Lab → · Contrast checker → · Palette generator →