#B53A3D#B53A3D

#B53A3D is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.159 H 23.1°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B53A3D
RGB	rgb(181, 58, 61)
HSL	hsl(359, 51%, 47%)
HSV	hsv(359, 68%, 71%)
CMYK	cmyk(0%, 68%, 66.3%, 29%)
CIE-LAB	lab(43.05, 49.73, 26.41)
CIE-LCH	lch(43.05, 56.31, 27.98°)
OKLab	oklab(52.82% 0.1462 0.0623)
OKLCH	oklch(52.82% 0.159 23.1)
XYZ	xyz(21.4136, 13.1898, 5.8323)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A3D #3AB5B2

analogous

#B53A7A #B53A3D #B5753A

triadic

#B53A3D #3DB53A #3A3DB5

tetradic

#B53A3D #7AB53A #3AB5B2 #753AB5

square

#B53A3D #7AB53A #3AB5B2 #753AB5

split-complementary

#B53A3D #3AB575 #3A7AB5

monochromatic

#581C1E #872B2D #B53A3D #CC6063 #DB8E90

Accessibility & contrast

On white

5.77

#B53A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B53A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A3D

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A3D	#FFFFFF	#000000	##FFFFFF
##B53A3D	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553C

Deuteranopia (green-blind)

#7A6F39

Tritanopia (blue-blind)

#C71A3C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53a3d;
/* rgb */ color: rgb(181, 58, 61);
/* oklch */ color: oklch(52.8% 0.159 23.1);

Tailwind

colors: {
  custom: {
    50: '#d27772',
    500: '#b53a3d',
    950: '#000000',
  },
}

SCSS

$custom: #b53a3d;
$custom-light: #d27772;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a3d",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.537,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52822,
    "c": 0.15889,
    "h": 23.1
  },
  "luminance": 0.13187
}

Semantic roles & 50–950 ramp

primary

#B53A3D

secondary

#85C6C4

accent

#DBD74D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53A3D

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

Preview Lab → · Contrast checker → · Palette generator →