#B63B2D#B63B2D

#B63B2D is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.161 H 29.8°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B63B2D
RGB	rgb(182, 59, 45)
HSL	hsl(6, 60%, 45%)
HSV	hsv(6, 75%, 71%)
CMYK	cmyk(0%, 67.6%, 75.3%, 28.6%)
CIE-LAB	lab(43.16, 48.85, 35.96)
CIE-LCH	lch(43.16, 60.66, 36.36°)
OKLab	oklab(52.87% 0.14 0.0803)
OKLCH	oklch(52.87% 0.161 29.8)
XYZ	xyz(21.3314, 13.2656, 3.9194)
Luminance	0.1326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B2D #2DA8B6

analogous

#B62D64 #B63B2D #B67F2D

triadic

#B63B2D #2DB63B #3B2DB6

tetradic

#B63B2D #64B62D #2DA8B6 #7F2DB6

square

#B63B2D #64B62D #2DA8B6 #7F2DB6

split-complementary

#B63B2D #2DB67F #2D64B6

monochromatic

#541B15 #852B21 #B63B2D #D35B4D #DF887E

Accessibility & contrast

On white

5.75

#B63B2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B63B2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B2D

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B2D	#FFFFFF	#000000	##FFFFFF
##B63B2D	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)

#5E552B

Deuteranopia (green-blind)

#7D7029

Tritanopia (blue-blind)

#C81639

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b2d;
/* rgb */ color: rgb(182, 59, 45);
/* oklch */ color: oklch(52.9% 0.161 29.8);

Tailwind

colors: {
  custom: {
    50: '#d47867',
    500: '#b63b2d',
    950: '#000000',
  },
}

SCSS

$custom: #b63b2d;
$custom-light: #d47867;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b2d",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 45
  },
  "hsl": {
    "h": 6.131,
    "s": 60.352,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5287,
    "c": 0.16138,
    "h": 29.8
  },
  "luminance": 0.13262
}

Semantic roles & 50–950 ramp

primary

#B63B2D

secondary

#77C0C8

accent

#D3E344

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63B2D

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

Preview Lab → · Contrast checker → · Palette generator →