#B63B2E#B63B2E

#B63B2E is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.161 H 29.5°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B63B2E
RGB	rgb(182, 59, 46)
HSL	hsl(6, 60%, 45%)
HSV	hsv(6, 75%, 71%)
CMYK	cmyk(0%, 67.6%, 74.7%, 28.6%)
CIE-LAB	lab(43.17, 48.89, 35.41)
CIE-LCH	lch(43.17, 60.37, 35.92°)
OKLab	oklab(52.88% 0.1403 0.0794)
OKLCH	oklch(52.88% 0.161 29.5)
XYZ	xyz(21.3509, 13.2734, 4.0220)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B2E #2EA9B6

analogous

#B62E65 #B63B2E #B67F2E

triadic

#B63B2E #2EB63B #3B2EB6

tetradic

#B63B2E #65B62E #2EA9B6 #7F2EB6

square

#B63B2E #65B62E #2EA9B6 #7F2EB6

split-complementary

#B63B2E #2EB67F #2E65B6

monochromatic

#541B15 #852B22 #B63B2E #D25B4F #DF8980

Accessibility & contrast

On white

5.75

#B63B2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B63B2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B2E

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B2E	#FFFFFF	#000000	##FFFFFF
##B63B2E	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E552C

Deuteranopia (green-blind)

#7C702A

Tritanopia (blue-blind)

#C81639

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b2e;
/* rgb */ color: rgb(182, 59, 46);
/* oklch */ color: oklch(52.9% 0.161 29.5);

Tailwind

colors: {
  custom: {
    50: '#d47867',
    500: '#b63b2e',
    950: '#000000',
  },
}

SCSS

$custom: #b63b2e;
$custom-light: #d47867;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b2e",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 46
  },
  "hsl": {
    "h": 5.735,
    "s": 59.649,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52882,
    "c": 0.1612,
    "h": 29.5
  },
  "luminance": 0.1327
}

Semantic roles & 50–950 ramp

primary

#B63B2E

secondary

#78C0C8

accent

#D4E345

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63B2E

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

Preview Lab → · Contrast checker → · Palette generator →