#B63D3E#B63D3E

#B63D3E is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.4% C 0.157 H 23.7°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B63D3E
RGB	rgb(182, 61, 62)
HSL	hsl(360, 50%, 48%)
HSV	hsv(360, 66%, 71%)
CMYK	cmyk(0%, 66.5%, 65.9%, 28.6%)
CIE-LAB	lab(43.70, 48.87, 26.67)
CIE-LCH	lch(43.70, 55.67, 28.62°)
OKLab	oklab(53.35% 0.1435 0.063)
OKLCH	oklch(53.35% 0.157 23.7)
XYZ	xyz(21.8319, 13.6334, 6.0384)
Luminance	0.1363 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63D3E #3DB6B5

analogous

#B63D7B #B63D3E #B6783D

triadic

#B63D3E #3EB63D #3D3EB6

tetradic

#B63D3E #7BB63D #3DB6B5 #783DB6

square

#B63D3E #7BB63D #3DB6B5 #783DB6

split-complementary

#B63D3E #3DB678 #3D7BB6

monochromatic

#5A1E1F #882E2E #B63D3E #CB6566 #DB9393

Accessibility & contrast

On white

5.64

#B63D3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B63D3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63D3E

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63D3E	#FFFFFF	#000000	##FFFFFF
##B63D3E	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573D

Deuteranopia (green-blind)

#7C713B

Tritanopia (blue-blind)

#C81F3F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b63d3e;
/* rgb */ color: rgb(182, 61, 62);
/* oklch */ color: oklch(53.4% 0.157 23.7);

Tailwind

colors: {
  custom: {
    50: '#d37973',
    500: '#b63d3e',
    950: '#000000',
  },
}

SCSS

$custom: #b63d3e;
$custom-light: #d37973;
$custom-dark: #000000;

JSON

{
  "hex": "#b63d3e",
  "rgb": {
    "r": 182,
    "g": 61,
    "b": 62
  },
  "hsl": {
    "h": 359.504,
    "s": 49.794,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53351,
    "c": 0.15674,
    "h": 23.7
  },
  "luminance": 0.1363
}

Semantic roles & 50–950 ramp

primary

#B63D3E

secondary

#89C6C5

accent

#D9D84E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B63D3E

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

Preview Lab → · Contrast checker → · Palette generator →