#B53D31#B53D31

#B53D31 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.158 H 29.1°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#B53D31
RGB	rgb(181, 61, 49)
HSL	hsl(5, 57%, 45%)
HSV	hsv(5, 73%, 71%)
CMYK	cmyk(0%, 66.3%, 72.9%, 29%)
CIE-LAB	lab(43.34, 47.84, 33.84)
CIE-LCH	lch(43.34, 58.60, 35.27°)
OKLab	oklab(52.99% 0.1378 0.0767)
OKLCH	oklch(52.99% 0.158 29.1)
XYZ	xyz(21.2815, 13.3861, 4.3683)
Luminance	0.1338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53D31 #31A9B5

analogous

#B53167 #B53D31 #B57F31

triadic

#B53D31 #31B53D #3D31B5

tetradic

#B53D31 #67B531 #31A9B5 #7F31B5

square

#B53D31 #67B531 #31A9B5 #7F31B5

split-complementary

#B53D31 #31B57F #3167B5

monochromatic

#551D17 #852D24 #B53D31 #D05E53 #DD8B83

Accessibility & contrast

On white

5.71

#B53D31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B53D31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53D31

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53D31	#FFFFFF	#000000	##FFFFFF
##B53D31	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562F

Deuteranopia (green-blind)

#7C702D

Tritanopia (blue-blind)

#C71C3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53d31;
/* rgb */ color: rgb(181, 61, 49);
/* oklch */ color: oklch(53.0% 0.158 29.1);

Tailwind

colors: {
  custom: {
    50: '#d3796a',
    500: '#b53d31',
    950: '#000000',
  },
}

SCSS

$custom: #b53d31;
$custom-light: #d3796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b53d31",
  "rgb": {
    "r": 181,
    "g": 61,
    "b": 49
  },
  "hsl": {
    "h": 5.455,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52986,
    "c": 0.15766,
    "h": 29.1
  },
  "luminance": 0.13383
}

Semantic roles & 50–950 ramp

primary

#B53D31

secondary

#7BC0C7

accent

#D3E147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53D31

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

Preview Lab → · Contrast checker → · Palette generator →