#C03333#C03333

#C03333 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.178 H 25.5°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX#C03333
RGBrgb(192, 51, 51)
HSLhsl(0, 58%, 48%)
HSVhsv(0, 73%, 75%)
CMYKcmyk(0%, 73.4%, 73.4%, 24.7%)
CIE-LABlab(43.97, 55.43, 33.94)
CIE-LCHlch(43.97, 65.00, 31.48°)
OKLaboklab(53.84% 0.1607 0.0767)
OKLCHoklch(53.84% 0.178 25.5)
XYZxyz(23.5223, 13.8167, 4.5597)
Luminance0.1381 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#C03333 #33C0C0
analogous
#C03379 #C03333 #C07933
triadic
#C03333 #33C033 #3333C0
tetradic
#C03333 #79C033 #33C0C0 #7933C0
square
#C03333 #79C033 #33C0C0 #7933C0
split-complementary
#C03333 #33C079 #3379C0
monochromatic
#5F1919 #902626 #C03333 #D45C5C #E18D8D

Accessibility & contrast

On white

5.58
#C03333 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.76
#C03333 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03333
5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##C03333#FFFFFF#000000##FFFFFF
##C033331.005.583.765.58
#FFFFFF5.581.0021.001.00
#0000003.7621.001.0021.00
##FFFFFF5.581.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D5431
Deuteranopia (green-blind)
#80732E
Tritanopia (blue-blind)
#D30035
Achromatopsia (no color)
#686868

Design tokens & code

CSS
--color: #c03333;
/* rgb */ color: rgb(192, 51, 51);
/* oklch */ color: oklch(53.8% 0.178 25.5);
Tailwind
colors: {
  custom: {
    50: '#dc756b',
    500: '#c03333',
    950: '#000000',
  },
}
SCSS
$custom: #c03333;
$custom-light: #dc756b;
$custom-dark: #000000;
JSON
{
  "hex": "#c03333",
  "rgb": {
    "r": 192,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53837,
    "c": 0.1781,
    "h": 25.5
  },
  "luminance": 0.13813
}

Semantic roles & 50–950 ramp

primary
#C03333
secondary
#84CBCB
accent
#E1E147
background
#FEF7F6
surface
#FDEDEB
border
#D5C8C6
text
#170906
muted
#857B7A

Preview Lab

Preview with #C03333

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

Preview Lab → · Contrast checker → · Palette generator →

#C03333 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva