#330403#330403

#330403 is a very dark, moderate red. Relative luminance 0.008; OKLCH L 20.9% C 0.076 H 28.3°. Best body text is #FFFFFF at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#330403
RGB	rgb(51, 4, 3)
HSL	hsl(1, 89%, 11%)
HSV	hsv(1, 94%, 20%)
CMYK	cmyk(0%, 92.2%, 94.1%, 80%)
CIE-LAB	lab(7.20, 23.29, 10.06)
CIE-LCH	lch(7.20, 25.37, 23.36°)
OKLab	oklab(20.88% 0.0667 0.0358)
OKLCH	oklch(20.88% 0.076 28.3)
XYZ	xyz(1.4253, 0.7974, 0.1650)
Luminance	0.0080 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#330403 #033233

analogous

#33031A #330403 #331C03

triadic

#330403 #033304 #040333

tetradic

#330403 #1A3303 #033233 #1C0333

square

#330403 #1A3303 #033233 #1C0333

split-complementary

#330403 #03331C #031A33

monochromatic

#1D0202 #1D0202 #330403 #6D0906 #A70D0A

Accessibility & contrast

On white

18.11

#330403 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#330403 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #330403

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##330403	#FFFFFF	#000000	##FFFFFF
##330403	1.00	18.11	1.16	18.11
#FFFFFF	18.11	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F03

Deuteranopia (green-blind)

#1E1A02

Tritanopia (blue-blind)

#390004

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #330403;
/* rgb */ color: rgb(51, 4, 3);
/* oklch */ color: oklch(20.9% 0.076 28.3);

Tailwind

colors: {
  custom: {
    50: '#6f4848',
    500: '#330403',
    950: '#000000',
  },
}

SCSS

$custom: #330403;
$custom-light: #6f4848;
$custom-dark: #000000;

JSON

{
  "hex": "#330403",
  "rgb": {
    "r": 51,
    "g": 4,
    "b": 3
  },
  "hsl": {
    "h": 1.25,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20882,
    "c": 0.07569,
    "h": 28.3
  },
  "luminance": 0.00797
}

Semantic roles & 50–950 ramp

primary

#330403

secondary

#1C7476

accent

#FBFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#080100

muted

#7B7777

Preview Lab

Preview with #330403

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

Preview Lab → · Contrast checker → · Palette generator →