#B63139#B63139

#B63139 is a mid, vivid red. Relative luminance 0.124; OKLCH L 52.0% C 0.169 H 22.3°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B63139
RGB	rgb(182, 49, 57)
HSL	hsl(356, 58%, 45%)
HSV	hsv(356, 73%, 71%)
CMYK	cmyk(0%, 73.1%, 68.7%, 28.6%)
CIE-LAB	lab(41.91, 53.29, 27.47)
CIE-LCH	lch(41.91, 59.96, 27.27°)
OKLab	oklab(51.99% 0.1565 0.0641)
OKLCH	oklch(51.99% 0.169 22.3)
XYZ	xyz(21.1305, 12.4403, 5.1587)
Luminance	0.1244 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63139 #31B6AE

analogous

#B6317B #B63139 #B66B31

triadic

#B63139 #39B631 #3139B6

tetradic

#B63139 #7BB631 #31B6AE #6B31B6

square

#B63139 #7BB631 #31B6AE #6B31B6

split-complementary

#B63139 #31B66B #317BB6

monochromatic

#56171B #86242A #B63139 #D1535B #DE8489

Accessibility & contrast

On white

6.02

#B63139 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B63139 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63139

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63139	#FFFFFF	#000000	##FFFFFF
##B63139	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575138

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#C80035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b63139;
/* rgb */ color: rgb(182, 49, 57);
/* oklch */ color: oklch(52.0% 0.169 22.3);

Tailwind

colors: {
  custom: {
    50: '#d4736f',
    500: '#b63139',
    950: '#000000',
  },
}

SCSS

$custom: #b63139;
$custom-light: #d4736f;
$custom-dark: #000000;

JSON

{
  "hex": "#b63139",
  "rgb": {
    "r": 182,
    "g": 49,
    "b": 57
  },
  "hsl": {
    "h": 356.391,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51985,
    "c": 0.16915,
    "h": 22.3
  },
  "luminance": 0.12437
}

Semantic roles & 50–950 ramp

primary

#B63139

secondary

#7CC7C3

accent

#E1D847

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63139

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

Preview Lab → · Contrast checker → · Palette generator →