#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
RGBrgb(51, 4, 3)
HSLhsl(1, 89%, 11%)
HSVhsv(1, 94%, 20%)
CMYKcmyk(0%, 92.2%, 94.1%, 80%)
CIE-LABlab(7.20, 23.29, 10.06)
CIE-LCHlch(7.20, 25.37, 23.36°)
OKLaboklab(20.88% 0.0667 0.0358)
OKLCHoklch(20.88% 0.076 28.3)
XYZxyz(1.4253, 0.7974, 0.1650)
Luminance0.0080 (WCAG relative)
Temperaturewarm
Familyred

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
##3304031.0018.111.1618.11
#FFFFFF18.111.0021.001.00
#0000001.1621.001.0021.00
##FFFFFF18.111.0021.001.00

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 →

#330403 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva