#B53A39#B53A39

#B53A39 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.8% C 0.159 H 24.8°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#B53A39
RGB	rgb(181, 58, 57)
HSL	hsl(0, 52%, 47%)
HSV	hsv(0, 69%, 71%)
CMYK	cmyk(0%, 68%, 68.5%, 29%)
CIE-LAB	lab(42.99, 49.50, 28.74)
CIE-LCH	lch(42.99, 57.24, 30.14°)
OKLab	oklab(52.76% 0.1446 0.0669)
OKLCH	oklch(52.76% 0.159 24.8)
XYZ	xyz(21.3099, 13.1483, 5.2859)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A39 #39B4B5

analogous

#B53976 #B53A39 #B57839

triadic

#B53A39 #39B53A #3A39B5

tetradic

#B53A39 #76B539 #39B4B5 #7839B5

square

#B53A39 #76B539 #39B4B5 #7839B5

split-complementary

#B53A39 #39B578 #3976B5

monochromatic

#581C1C #862B2A #B53A39 #CD605F #DB8E8D

Accessibility & contrast

On white

5.79

#B53A39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B53A39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A39

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A39	#FFFFFF	#000000	##FFFFFF
##B53A39	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5538

Deuteranopia (green-blind)

#7B6F35

Tritanopia (blue-blind)

#C7183B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53a39;
/* rgb */ color: rgb(181, 58, 57);
/* oklch */ color: oklch(52.8% 0.159 24.8);

Tailwind

colors: {
  custom: {
    50: '#d3776f',
    500: '#b53a39',
    950: '#000000',
  },
}

SCSS

$custom: #b53a39;
$custom-light: #d3776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a39",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 57
  },
  "hsl": {
    "h": 0.484,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52756,
    "c": 0.15937,
    "h": 24.8
  },
  "luminance": 0.13145
}

Semantic roles & 50–950 ramp

primary

#B53A39

secondary

#84C5C6

accent

#DADC4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B53A39

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

Preview Lab → · Contrast checker → · Palette generator →