#33040B#33040B

#33040B is a very dark, moderate red. Relative luminance 0.008; OKLCH L 21.1% C 0.075 H 17.6°. Best body text is #FFFFFF at 18.06:1 contrast (WCAG AA passes).

Color values

HEX	#33040B
RGB	rgb(51, 4, 11)
HSL	hsl(351, 85%, 11%)
HSV	hsv(351, 92%, 20%)
CMYK	cmyk(0%, 92.2%, 78.4%, 80%)
CIE-LAB	lab(7.36, 23.85, 7.02)
CIE-LCH	lch(7.36, 24.87, 16.40°)
OKLab	oklab(21.06% 0.0712 0.0225)
OKLCH	oklch(21.06% 0.075 17.6)
XYZ	xyz(1.4692, 0.8150, 0.3965)
Luminance	0.0081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33040B #04332C

analogous

#330422 #33040B #331404

triadic

#33040B #0B3304 #040B33

tetradic

#33040B #223304 #04332C #140433

square

#33040B #223304 #04332C #140433

split-complementary

#33040B #043314 #042233

monochromatic

#1C0206 #1C0206 #33040B #6C0817 #A40D23

Accessibility & contrast

On white

18.06

#33040B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#33040B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33040B

18.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33040B	#FFFFFF	#000000	##FFFFFF
##33040B	1.00	18.06	1.16	18.06
#FFFFFF	18.06	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11100B

Deuteranopia (green-blind)

#1D1A0A

Tritanopia (blue-blind)

#390007

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #33040b;
/* rgb */ color: rgb(51, 4, 11);
/* oklch */ color: oklch(21.1% 0.075 17.6);

Tailwind

colors: {
  custom: {
    50: '#6f494b',
    500: '#33040b',
    950: '#000000',
  },
}

SCSS

$custom: #33040b;
$custom-light: #6f494b;
$custom-dark: #000000;

JSON

{
  "hex": "#33040b",
  "rgb": {
    "r": 51,
    "g": 4,
    "b": 11
  },
  "hsl": {
    "h": 351.064,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21061,
    "c": 0.07465,
    "h": 17.6
  },
  "luminance": 0.00815
}

Semantic roles & 50–950 ramp

primary

#33040B

secondary

#1D7568

accent

#FCDD2C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #33040B

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

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