#B5403D#B5403D

#B5403D is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.153 H 25.2°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#B5403D
RGB	rgb(181, 64, 61)
HSL	hsl(2, 50%, 47%)
HSV	hsv(2, 66%, 71%)
CMYK	cmyk(0%, 64.6%, 66.3%, 29%)
CIE-LAB	lab(43.99, 47.18, 27.58)
CIE-LCH	lch(43.99, 54.65, 30.31°)
OKLab	oklab(53.53% 0.1381 0.0649)
OKLCH	oklch(53.53% 0.153 25.2)
XYZ	xyz(21.7339, 13.8305, 5.9391)
Luminance	0.1383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5403D #3DB2B5

analogous

#B53D76 #B5403D #B57C3D

triadic

#B5403D #3DB540 #403DB5

tetradic

#B5403D #76B53D #3DB2B5 #7C3DB5

square

#B5403D #76B53D #3DB2B5 #7C3DB5

split-complementary

#B5403D #3DB57C #3D76B5

monochromatic

#59201E #87302E #B5403D #CB6764 #DA9492

Accessibility & contrast

On white

5.58

#B5403D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B5403D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5403D

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5403D	#FFFFFF	#000000	##FFFFFF
##B5403D	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583C

Deuteranopia (green-blind)

#7C713A

Tritanopia (blue-blind)

#C62540

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b5403d;
/* rgb */ color: rgb(181, 64, 61);
/* oklch */ color: oklch(53.5% 0.153 25.2);

Tailwind

colors: {
  custom: {
    50: '#d27b72',
    500: '#b5403d',
    950: '#000000',
  },
}

SCSS

$custom: #b5403d;
$custom-light: #d27b72;
$custom-dark: #000000;

JSON

{
  "hex": "#b5403d",
  "rgb": {
    "r": 181,
    "g": 64,
    "b": 61
  },
  "hsl": {
    "h": 1.5,
    "s": 49.587,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53527,
    "c": 0.15262,
    "h": 25.2
  },
  "luminance": 0.13827
}

Semantic roles & 50–950 ramp

primary

#B5403D

secondary

#88C4C5

accent

#D6D94F

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B5403D

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

Preview Lab → · Contrast checker → · Palette generator →