#B63039#B63039

#B63039 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.170 H 22.0°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#B63039
RGB	rgb(182, 48, 57)
HSL	hsl(356, 58%, 45%)
HSV	hsv(356, 74%, 71%)
CMYK	cmyk(0%, 73.6%, 68.7%, 28.6%)
CIE-LAB	lab(41.78, 53.65, 27.31)
CIE-LCH	lch(41.78, 60.20, 26.98°)
OKLab	oklab(51.89% 0.1577 0.0637)
OKLCH	oklch(51.89% 0.17 22)
XYZ	xyz(21.0892, 12.3576, 5.1449)
Luminance	0.1235 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63039 #30B6AD

analogous

#B6307C #B63039 #B66A30

triadic

#B63039 #39B630 #3039B6

tetradic

#B63039 #7CB630 #30B6AD #6A30B6

square

#B63039 #7CB630 #30B6AD #6A30B6

split-complementary

#B63039 #30B66A #307CB6

monochromatic

#55161B #86232A #B63039 #D1525A #DE8288

Accessibility & contrast

On white

6.05

#B63039 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B63039 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63039

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63039	#FFFFFF	#000000	##FFFFFF
##B63039	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565038

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#C80035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b63039;
/* rgb */ color: rgb(182, 48, 57);
/* oklch */ color: oklch(51.9% 0.170 22.0);

Tailwind

colors: {
  custom: {
    50: '#d4736f',
    500: '#b63039',
    950: '#000000',
  },
}

SCSS

$custom: #b63039;
$custom-light: #d4736f;
$custom-dark: #000000;

JSON

{
  "hex": "#b63039",
  "rgb": {
    "r": 182,
    "g": 48,
    "b": 57
  },
  "hsl": {
    "h": 355.97,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51889,
    "c": 0.17006,
    "h": 22
  },
  "luminance": 0.12354
}

Semantic roles & 50–950 ramp

primary

#B63039

secondary

#7BC7C2

accent

#E1D746

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63039

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

Preview Lab → · Contrast checker → · Palette generator →