#B63F33#B63F33

#B63F33 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.156 H 29.0°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#B63F33
RGB	rgb(182, 63, 51)
HSL	hsl(5, 56%, 46%)
HSV	hsv(5, 72%, 71%)
CMYK	cmyk(0%, 65.4%, 72%, 28.6%)
CIE-LAB	lab(43.86, 47.43, 33.34)
CIE-LCH	lch(43.86, 57.97, 35.10°)
OKLab	oklab(53.42% 0.1367 0.0759)
OKLCH	oklch(53.42% 0.156 29)
XYZ	xyz(21.6688, 13.7422, 4.6428)
Luminance	0.1374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63F33 #33AAB6

analogous

#B63368 #B63F33 #B68033

triadic

#B63F33 #33B63F #3F33B6

tetradic

#B63F33 #68B633 #33AAB6 #8033B6

square

#B63F33 #68B633 #33AAB6 #8033B6

split-complementary

#B63F33 #33B680 #3368B6

monochromatic

#561E18 #862E26 #B63F33 #D06256 #DD8E86

Accessibility & contrast

On white

5.60

#B63F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#B63F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63F33

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63F33	#FFFFFF	#000000	##FFFFFF
##B63F33	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605731

Deuteranopia (green-blind)

#7E712F

Tritanopia (blue-blind)

#C8203D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b63f33;
/* rgb */ color: rgb(182, 63, 51);
/* oklch */ color: oklch(53.4% 0.156 29.0);

Tailwind

colors: {
  custom: {
    50: '#d37a6b',
    500: '#b63f33',
    950: '#000000',
  },
}

SCSS

$custom: #b63f33;
$custom-light: #d37a6b;
$custom-dark: #000000;

JSON

{
  "hex": "#b63f33",
  "rgb": {
    "r": 182,
    "g": 63,
    "b": 51
  },
  "hsl": {
    "h": 5.496,
    "s": 56.223,
    "l": 45.686
  },
  "oklch": {
    "l": 0.53419,
    "c": 0.15641,
    "h": 29
  },
  "luminance": 0.13739
}

Semantic roles & 50–950 ramp

primary

#B63F33

secondary

#7EC0C7

accent

#D2E048

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B63F33

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

Preview Lab → · Contrast checker → · Palette generator →