#B63B36#B63B36

#B63B36 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.0% C 0.160 H 26.4°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#B63B36
RGB	rgb(182, 59, 54)
HSL	hsl(2, 54%, 46%)
HSV	hsv(2, 70%, 71%)
CMYK	cmyk(0%, 67.6%, 70.3%, 28.6%)
CIE-LAB	lab(43.27, 49.27, 30.91)
CIE-LCH	lch(43.27, 58.16, 32.10°)
OKLab	oklab(52.99% 0.1432 0.0712)
OKLCH	oklch(52.99% 0.16 26.4)
XYZ	xyz(21.5235, 13.3425, 4.9313)
Luminance	0.1334 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B63B36 #36B1B6

analogous

#B63671 #B63B36 #B67B36

triadic

#B63B36 #36B63B #3B36B6

tetradic

#B63B36 #71B636 #36B1B6 #7B36B6

square

#B63B36 #71B636 #36B1B6 #7B36B6

split-complementary

#B63B36 #36B67B #3671B6

monochromatic

#581C1A #872C28 #B63B36 #CE5F5B #DC8D8A

Accessibility & contrast

On white

5.73

#B63B36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B63B36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B63B36

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B63B36	#FFFFFF	#000000	##FFFFFF
##B63B36	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5534

Deuteranopia (green-blind)

#7C7032

Tritanopia (blue-blind)

#C8193B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b63b36;
/* rgb */ color: rgb(182, 59, 54);
/* oklch */ color: oklch(53.0% 0.160 26.4);

Tailwind

colors: {
  custom: {
    50: '#d3786d',
    500: '#b63b36',
    950: '#000000',
  },
}

SCSS

$custom: #b63b36;
$custom-light: #d3786d;
$custom-dark: #000000;

JSON

{
  "hex": "#b63b36",
  "rgb": {
    "r": 182,
    "g": 59,
    "b": 54
  },
  "hsl": {
    "h": 2.344,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52992,
    "c": 0.15987,
    "h": 26.4
  },
  "luminance": 0.13339
}

Semantic roles & 50–950 ramp

primary

#B63B36

secondary

#81C4C6

accent

#D8DE4A

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B63B36

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

Preview Lab → · Contrast checker → · Palette generator →