#B63D3D#B63D3D

#B63D3D is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.157 H 24.1°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B63D3D
RGB	rgb(182, 61, 61)
HSL	hsl(0, 50%, 48%)
HSV	hsv(0, 66%, 71%)
CMYK	cmyk(0%, 66.5%, 66.5%, 28.6%)
CIE-LAB	lab(43.69, 48.81, 27.25)
CIE-LCH	lch(43.69, 55.90, 29.17°)
OKLab	oklab(53.33% 0.1432 0.0641)
OKLCH	oklch(53.33% 0.157 24.1)
XYZ	xyz(21.8047, 13.6226, 5.8952)
Luminance	0.1362 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63D3D #3DB6B6

analogous

#B63D79 #B63D3D #B6793D

triadic

#B63D3D #3DB63D #3D3DB6

tetradic

#B63D3D #79B63D #3DB6B6 #793DB6

square

#B63D3D #79B63D #3DB6B6 #793DB6

split-complementary

#B63D3D #3DB679 #3D79B6

monochromatic

#5A1E1E #882E2E #B63D3D #CB6565 #DB9393

Accessibility & contrast

On white

5.64

#B63D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B63D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D3D

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63D3D	#FFFFFF	#000000	##FFFFFF
##B63D3D	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E573C

Deuteranopia (green-blind)

#7C713A

Tritanopia (blue-blind)

#C81F3E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63d3d;
/* rgb */ color: rgb(182, 61, 61);
/* oklch */ color: oklch(53.3% 0.157 24.1);

Tailwind

colors: {
  custom: {
    50: '#d37972',
    500: '#b63d3d',
    950: '#000000',
  },
}

SCSS

$custom: #b63d3d;
$custom-light: #d37972;
$custom-dark: #000000;

JSON

{
  "hex": "#b63d3d",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 49.794,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53334,
    "c": 0.15686,
    "h": 24.1
  },
  "luminance": 0.13619
}

Semantic roles & 50–950 ramp

primary

#B63D3D

secondary

#89C6C6

accent

#D9D94E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B63D3D

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

Preview Lab → · Contrast checker → · Palette generator →