#33040A#33040A

#33040A is a very dark, moderate red. Relative luminance 0.008; OKLCH L 21.0% C 0.075 H 18.8°. Best body text is #FFFFFF at 18.06:1 contrast (WCAG AA passes).

Color values

HEX	#33040A
RGB	rgb(51, 4, 10)
HSL	hsl(352, 85%, 11%)
HSV	hsv(352, 92%, 20%)
CMYK	cmyk(0%, 92.2%, 80.4%, 80%)
CIE-LAB	lab(7.34, 23.78, 7.41)
CIE-LCH	lch(7.34, 24.91, 17.31°)
OKLab	oklab(21.04% 0.0707 0.024)
OKLCH	oklch(21.04% 0.075 18.8)
XYZ	xyz(1.4636, 0.8128, 0.3669)
Luminance	0.0081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33040A #04332D

analogous

#330421 #33040A #331504

triadic

#33040A #0A3304 #040A33

tetradic

#33040A #213304 #04332D #150433

square

#33040A #213304 #04332D #150433

split-complementary

#33040A #043315 #042133

monochromatic

#1C0206 #1C0206 #33040A #6C0815 #A40D20

Accessibility & contrast

On white

18.06

#33040A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#33040A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #33040A

18.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33040A	#FFFFFF	#000000	##FFFFFF
##33040A	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)

#11100A

Deuteranopia (green-blind)

#1D1A09

Tritanopia (blue-blind)

#390006

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #33040a;
/* rgb */ color: rgb(51, 4, 10);
/* oklch */ color: oklch(21.0% 0.075 18.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#33040a",
  "rgb": {
    "r": 51,
    "g": 4,
    "b": 10
  },
  "hsl": {
    "h": 352.34,
    "s": 85.455,
    "l": 10.784
  },
  "oklch": {
    "l": 0.21038,
    "c": 0.07467,
    "h": 18.8
  },
  "luminance": 0.00813
}

Semantic roles & 50–950 ramp

primary

#33040A

secondary

#1D756A

accent

#FCE12C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#080101

muted

#7B7777

Preview Lab

Preview with #33040A

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

Preview Lab → · Contrast checker → · Palette generator →