#B5363D#B5363D

#B5363D is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.163 H 21.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B5363D
RGB	rgb(181, 54, 61)
HSL	hsl(357, 54%, 46%)
HSV	hsv(357, 70%, 71%)
CMYK	cmyk(0%, 70.2%, 66.3%, 29%)
CIE-LAB	lab(42.46, 51.32, 25.69)
CIE-LCH	lch(42.46, 57.39, 26.59°)
OKLab	oklab(52.39% 0.1512 0.0607)
OKLCH	oklch(52.39% 0.163 21.9)
XYZ	xyz(21.2198, 12.8021, 5.7677)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5363D #36B5AE

analogous

#B5367C #B5363D #B56E36

triadic

#B5363D #3DB536 #363DB5

tetradic

#B5363D #7CB536 #36B5AE #6E36B5

square

#B5363D #7CB536 #36B5AE #6E36B5

split-complementary

#B5363D #36B56E #367CB5

monochromatic

#571A1D #86282D #B5363D #CE5A61 #DC898E

Accessibility & contrast

On white

5.90

#B5363D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B5363D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5363D

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5363D	#FFFFFF	#000000	##FFFFFF
##B5363D	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59533C

Deuteranopia (green-blind)

#796E39

Tritanopia (blue-blind)

#C7103A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b5363d;
/* rgb */ color: rgb(181, 54, 61);
/* oklch */ color: oklch(52.4% 0.163 21.9);

Tailwind

colors: {
  custom: {
    50: '#d27572',
    500: '#b5363d',
    950: '#000000',
  },
}

SCSS

$custom: #b5363d;
$custom-light: #d27572;
$custom-dark: #000000;

JSON

{
  "hex": "#b5363d",
  "rgb": {
    "r": 181,
    "g": 54,
    "b": 61
  },
  "hsl": {
    "h": 356.693,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52386,
    "c": 0.16296,
    "h": 21.9
  },
  "luminance": 0.12799
}

Semantic roles & 50–950 ramp

primary

#B5363D

secondary

#81C6C2

accent

#DDD54A

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B5363D

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

Preview Lab → · Contrast checker → · Palette generator →