#B53A3E#B53A3E

#B53A3E is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.159 H 22.6°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B53A3E
RGB	rgb(181, 58, 62)
HSL	hsl(358, 51%, 47%)
HSV	hsv(358, 68%, 71%)
CMYK	cmyk(0%, 68%, 65.7%, 29%)
CIE-LAB	lab(43.06, 49.78, 25.83)
CIE-LCH	lch(43.06, 56.09, 27.42°)
OKLab	oklab(52.84% 0.1466 0.0611)
OKLCH	oklch(52.84% 0.159 22.6)
XYZ	xyz(21.4408, 13.2007, 5.9755)
Luminance	0.1320 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A3E #3AB5B1

analogous

#B53A7C #B53A3E #B5743A

triadic

#B53A3E #3EB53A #3A3EB5

tetradic

#B53A3E #7CB53A #3AB5B1 #743AB5

square

#B53A3E #7CB53A #3AB5B1 #743AB5

split-complementary

#B53A3E #3AB574 #3A7CB5

monochromatic

#581C1E #872B2E #B53A3E #CC6064 #DB8E91

Accessibility & contrast

On white

5.77

#B53A3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B53A3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A3E

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A3E	#FFFFFF	#000000	##FFFFFF
##B53A3E	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)

#5B553D

Deuteranopia (green-blind)

#7A6F3B

Tritanopia (blue-blind)

#C71A3D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53a3e;
/* rgb */ color: rgb(181, 58, 62);
/* oklch */ color: oklch(52.8% 0.159 22.6);

Tailwind

colors: {
  custom: {
    50: '#d27773',
    500: '#b53a3e',
    950: '#000000',
  },
}

SCSS

$custom: #b53a3e;
$custom-light: #d27773;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a3e",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 62
  },
  "hsl": {
    "h": 358.049,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.5284,
    "c": 0.15879,
    "h": 22.6
  },
  "luminance": 0.13198
}

Semantic roles & 50–950 ramp

primary

#B53A3E

secondary

#85C6C4

accent

#DBD64D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53A3E

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

Preview Lab → · Contrast checker → · Palette generator →