#B63339#B63339

#B63339 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.2% C 0.167 H 22.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B63339
RGB	rgb(182, 51, 57)
HSL	hsl(357, 56%, 46%)
HSV	hsv(357, 72%, 71%)
CMYK	cmyk(0%, 72%, 68.7%, 28.6%)
CIE-LAB	lab(42.17, 52.56, 27.79)
CIE-LCH	lch(42.17, 59.46, 27.87°)
OKLab	oklab(52.18% 0.1542 0.0648)
OKLCH	oklch(52.18% 0.167 22.8)
XYZ	xyz(21.2161, 12.6113, 5.1872)
Luminance	0.1261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63339 #33B6B0

analogous

#B6337A #B63339 #B66E33

triadic

#B63339 #39B633 #3339B6

tetradic

#B63339 #7AB633 #33B6B0 #6E33B6

square

#B63339 #7AB633 #33B6B0 #6E33B6

split-complementary

#B63339 #33B66E #337AB6

monochromatic

#56181B #86262A #B63339 #D0565C #DD868A

Accessibility & contrast

On white

5.96

#B63339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B63339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63339

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63339	#FFFFFF	#000000	##FFFFFF
##B63339	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585238

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C80136

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b63339;
/* rgb */ color: rgb(182, 51, 57);
/* oklch */ color: oklch(52.2% 0.167 22.8);

Tailwind

colors: {
  custom: {
    50: '#d4746f',
    500: '#b63339',
    950: '#000000',
  },
}

SCSS

$custom: #b63339;
$custom-light: #d4746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b63339",
  "rgb": {
    "r": 182,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.252,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52182,
    "c": 0.16727,
    "h": 22.8
  },
  "luminance": 0.12608
}

Semantic roles & 50–950 ramp

primary

#B63339

secondary

#7EC7C4

accent

#E0D948

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63339

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

Preview Lab → · Contrast checker → · Palette generator →