#B63C2B#B63C2B

#B63C2B is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.161 H 30.9°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B63C2B
RGB	rgb(182, 60, 43)
HSL	hsl(7, 62%, 44%)
HSV	hsv(7, 76%, 71%)
CMYK	cmyk(0%, 67%, 76.4%, 28.6%)
CIE-LAB	lab(43.29, 48.35, 37.22)
CIE-LCH	lch(43.29, 61.02, 37.59°)
OKLab	oklab(52.96% 0.138 0.0826)
OKLCH	oklch(52.96% 0.161 30.9)
XYZ	xyz(21.3457, 13.3544, 3.7387)
Luminance	0.1335 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63C2B #2BA5B6

analogous

#B62B60 #B63C2B #B6822B

triadic

#B63C2B #2BB63C #3C2BB6

tetradic

#B63C2B #60B62B #2BA5B6 #822BB6

square

#B63C2B #60B62B #2BA5B6 #822BB6

split-complementary

#B63C2B #2BB682 #2B60B6

monochromatic

#531B14 #842C1F #B63C2B #D45B4A #E0887B

Accessibility & contrast

On white

5.72

#B63C2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B63C2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63C2B

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63C2B	#FFFFFF	#000000	##FFFFFF
##B63C2B	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5528

Deuteranopia (green-blind)

#7D7026

Tritanopia (blue-blind)

#C81839

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63c2b;
/* rgb */ color: rgb(182, 60, 43);
/* oklch */ color: oklch(53.0% 0.161 30.9);

Tailwind

colors: {
  custom: {
    50: '#d47865',
    500: '#b63c2b',
    950: '#000000',
  },
}

SCSS

$custom: #b63c2b;
$custom-light: #d47865;
$custom-dark: #000000;

JSON

{
  "hex": "#b63c2b",
  "rgb": {
    "r": 182,
    "g": 60,
    "b": 43
  },
  "hsl": {
    "h": 7.338,
    "s": 61.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52962,
    "c": 0.16081,
    "h": 30.9
  },
  "luminance": 0.13351
}

Semantic roles & 50–950 ramp

primary

#B63C2B

secondary

#75BEC8

accent

#D1E543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B63C2B

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

Preview Lab → · Contrast checker → · Palette generator →