#B63A2D#B63A2D

#B63A2D is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.162 H 29.5°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B63A2D
RGB	rgb(182, 58, 45)
HSL	hsl(6, 60%, 45%)
HSV	hsv(6, 75%, 71%)
CMYK	cmyk(0%, 68.1%, 75.3%, 28.6%)
CIE-LAB	lab(43.01, 49.26, 35.80)
CIE-LCH	lch(43.01, 60.90, 36.01°)
OKLab	oklab(52.76% 0.1413 0.08)
OKLCH	oklch(52.76% 0.162 29.5)
XYZ	xyz(21.2805, 13.1638, 3.9024)
Luminance	0.1316 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63A2D #2DA9B6

analogous

#B62D65 #B63A2D #B67E2D

triadic

#B63A2D #2DB63A #3A2DB6

tetradic

#B63A2D #65B62D #2DA9B6 #7E2DB6

square

#B63A2D #65B62D #2DA9B6 #7E2DB6

split-complementary

#B63A2D #2DB67E #2D65B6

monochromatic

#541B15 #852A21 #B63A2D #D35A4D #DF877E

Accessibility & contrast

On white

5.78

#B63A2D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B63A2D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63A2D

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63A2D	#FFFFFF	#000000	##FFFFFF
##B63A2D	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D542B

Deuteranopia (green-blind)

#7C7029

Tritanopia (blue-blind)

#C81338

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63a2d;
/* rgb */ color: rgb(182, 58, 45);
/* oklch */ color: oklch(52.8% 0.162 29.5);

Tailwind

colors: {
  custom: {
    50: '#d47767',
    500: '#b63a2d',
    950: '#000000',
  },
}

SCSS

$custom: #b63a2d;
$custom-light: #d47767;
$custom-dark: #000000;

JSON

{
  "hex": "#b63a2d",
  "rgb": {
    "r": 182,
    "g": 58,
    "b": 45
  },
  "hsl": {
    "h": 5.693,
    "s": 60.352,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52756,
    "c": 0.16232,
    "h": 29.5
  },
  "luminance": 0.13161
}

Semantic roles & 50–950 ramp

primary

#B63A2D

secondary

#77C0C8

accent

#D4E344

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63A2D

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

Preview Lab → · Contrast checker → · Palette generator →