#B63B34#B63B34

#B63B34 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.160 H 27.2°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B63B34
RGB	rgb(182, 59, 52)
HSL	hsl(3, 56%, 46%)
HSV	hsv(3, 71%, 71%)
CMYK	cmyk(0%, 67.6%, 71.4%, 28.6%)
CIE-LAB	lab(43.25, 49.17, 32.05)
CIE-LCH	lch(43.25, 58.69, 33.10°)
OKLab	oklab(52.96% 0.1424 0.0733)
OKLCH	oklch(52.96% 0.16 27.2)
XYZ	xyz(21.4775, 13.3241, 4.6890)
Luminance	0.1332 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B34 #34AFB6

analogous

#B6346E #B63B34 #B67C34

triadic

#B63B34 #34B63B #3B34B6

tetradic

#B63B34 #6EB634 #34AFB6 #7C34B6

square

#B63B34 #6EB634 #34AFB6 #7C34B6

split-complementary

#B63B34 #34B67C #346EB6

monochromatic

#571C19 #862C26 #B63B34 #CF5E58 #DD8C88

Accessibility & contrast

On white

5.73

#B63B34 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#B63B34 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B34

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B34	#FFFFFF	#000000	##FFFFFF
##B63B34	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5532

Deuteranopia (green-blind)

#7C7030

Tritanopia (blue-blind)

#C8183A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b34;
/* rgb */ color: rgb(182, 59, 52);
/* oklch */ color: oklch(53.0% 0.160 27.2);

Tailwind

colors: {
  custom: {
    50: '#d4786c',
    500: '#b63b34',
    950: '#000000',
  },
}

SCSS

$custom: #b63b34;
$custom-light: #d4786c;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b34",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 52
  },
  "hsl": {
    "h": 3.231,
    "s": 55.556,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52963,
    "c": 0.16018,
    "h": 27.2
  },
  "luminance": 0.13321
}

Semantic roles & 50–950 ramp

primary

#B63B34

secondary

#7FC3C7

accent

#D7DF49

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63B34

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

Preview Lab → · Contrast checker → · Palette generator →