#330B0F#330B0F

#330B0F is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.2% C 0.064 H 18.4°. Best body text is #FFFFFF at 17.56:1 contrast (WCAG AA passes).

Color values

HEX	#330B0F
RGB	rgb(51, 11, 15)
HSL	hsl(354, 65%, 12%)
HSV	hsv(354, 78%, 20%)
CMYK	cmyk(0%, 78.4%, 70.6%, 80%)
CIE-LAB	lab(8.81, 20.45, 7.20)
CIE-LCH	lch(8.81, 21.68, 19.41°)
OKLab	oklab(22.18% 0.061 0.0203)
OKLCH	oklch(22.18% 0.064 18.4)
XYZ	xyz(1.5713, 0.9779, 0.5578)
Luminance	0.0098 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330B0F #0B332F

analogous

#330B23 #330B0F #331B0B

triadic

#330B0F #0F330B #0B0F33

tetradic

#330B0F #23330B #0B332F #1B0B33

square

#330B0F #23330B #0B332F #1B0B33

split-complementary

#330B0F #0B331B #0B2333

monochromatic

#190507 #190507 #330B0F #65161E #98212D

Accessibility & contrast

On white

17.56

#330B0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#330B0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330B0F

17.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330B0F	#FFFFFF	#000000	##FFFFFF
##330B0F	1.00	17.56	1.20	17.56
#FFFFFF	17.56	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15140F

Deuteranopia (green-blind)

#1F1C0E

Tritanopia (blue-blind)

#39040D

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #330b0f;
/* rgb */ color: rgb(51, 11, 15);
/* oklch */ color: oklch(22.2% 0.064 18.4);

Tailwind

colors: {
  custom: {
    50: '#6e4d4e',
    500: '#330b0f',
    950: '#000000',
  },
}

SCSS

$custom: #330b0f;
$custom-light: #6e4d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#330b0f",
  "rgb": {
    "r": 51,
    "g": 11,
    "b": 15
  },
  "hsl": {
    "h": 354,
    "s": 64.516,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22178,
    "c": 0.0643,
    "h": 18.4
  },
  "luminance": 0.00978
}

Semantic roles & 50–950 ramp

primary

#330B0F

secondary

#2A7069

accent

#E8D740

background

#F6F4F4

surface

#ECE7E7

border

#C7C3C3

text

#070101

muted

#7A7777

Preview Lab

Preview with #330B0F

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

Preview Lab → · Contrast checker → · Palette generator →