#B63D31#B63D31

#B63D31 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.159 H 29.1°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX#B63D31
RGBrgb(182, 61, 49)
HSLhsl(5, 58%, 45%)
HSVhsv(5, 73%, 71%)
CMYKcmyk(0%, 66.5%, 73.1%, 28.6%)
CIE-LABlab(43.52, 48.19, 34.09)
CIE-LCHlch(43.52, 59.03, 35.28°)
OKLaboklab(53.15% 0.1387 0.0772)
OKLCHoklch(53.15% 0.159 29.1)
XYZxyz(21.5169, 13.5074, 4.3793)
Luminance0.1350 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B63D31 #31AAB6
analogous
#B63167 #B63D31 #B68031
triadic
#B63D31 #31B63D #3D31B6
tetradic
#B63D31 #67B631 #31AAB6 #8031B6
square
#B63D31 #67B631 #31AAB6 #8031B6
split-complementary
#B63D31 #31B680 #3167B6
monochromatic
#561D17 #862D24 #B63D31 #D15F53 #DE8C84

Accessibility & contrast

On white

5.67
#B63D31 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.70
#B63D31 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D31
5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B63D31#FFFFFF#000000##FFFFFF
##B63D311.005.673.705.67
#FFFFFF5.671.0021.001.00
#0000003.7021.001.0021.00
##FFFFFF5.671.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5F562F
Deuteranopia (green-blind)
#7D712D
Tritanopia (blue-blind)
#C81C3B
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #b63d31;
/* rgb */ color: rgb(182, 61, 49);
/* oklch */ color: oklch(53.2% 0.159 29.1);
Tailwind
colors: {
  custom: {
    50: '#d4796a',
    500: '#b63d31',
    950: '#000000',
  },
}
SCSS
$custom: #b63d31;
$custom-light: #d4796a;
$custom-dark: #000000;
JSON
{
  "hex": "#b63d31",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 49
  },
  "hsl": {
    "h": 5.414,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53153,
    "c": 0.15874,
    "h": 29.1
  },
  "luminance": 0.13504
}

Semantic roles & 50–950 ramp

primary
#B63D31
secondary
#7CC0C7
accent
#D3E147
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160906
muted
#847B7A

Preview Lab

Preview with #B63D31

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

Preview Lab → · Contrast checker → · Palette generator →

#B63D31 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva