#B53D3D#B53D3D

#B53D3D is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.156 H 24.1°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#B53D3D
RGB	rgb(181, 61, 61)
HSL	hsl(0, 50%, 47%)
HSV	hsv(0, 66%, 71%)
CMYK	cmyk(0%, 66.3%, 66.3%, 29%)
CIE-LAB	lab(43.51, 48.47, 26.99)
CIE-LCH	lch(43.51, 55.48, 29.11°)
OKLab	oklab(53.17% 0.1422 0.0636)
OKLCH	oklch(53.17% 0.156 24.1)
XYZ	xyz(21.5693, 13.5012, 5.8842)
Luminance	0.1350 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53D3D #3DB5B5

analogous

#B53D79 #B53D3D #B5793D

triadic

#B53D3D #3DB53D #3D3DB5

tetradic

#B53D3D #79B53D #3DB5B5 #793DB5

square

#B53D3D #79B53D #3DB5B5 #793DB5

split-complementary

#B53D3D #3DB579 #3D79B5

monochromatic

#591E1E #872E2E #B53D3D #CB6464 #DA9292

Accessibility & contrast

On white

5.68

#B53D3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B53D3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53D3D

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53D3D	#FFFFFF	#000000	##FFFFFF
##B53D3D	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573C

Deuteranopia (green-blind)

#7B703A

Tritanopia (blue-blind)

#C7203E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53d3d;
/* rgb */ color: rgb(181, 61, 61);
/* oklch */ color: oklch(53.2% 0.156 24.1);

Tailwind

colors: {
  custom: {
    50: '#d27972',
    500: '#b53d3d',
    950: '#000000',
  },
}

SCSS

$custom: #b53d3d;
$custom-light: #d27972;
$custom-dark: #000000;

JSON

{
  "hex": "#b53d3d",
  "rgb": {
    "r": 181,
    "g": 61,
    "b": 61
  },
  "hsl": {
    "h": 0,
    "s": 49.587,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53167,
    "c": 0.15577,
    "h": 24.1
  },
  "luminance": 0.13498
}

Semantic roles & 50–950 ramp

primary

#B53D3D

secondary

#88C5C5

accent

#D9D94F

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53D3D

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

Preview Lab → · Contrast checker → · Palette generator →