#B5403C#B5403C

#B5403C is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.153 H 25.6°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#B5403C
RGB	rgb(181, 64, 60)
HSL	hsl(2, 50%, 47%)
HSV	hsv(2, 67%, 71%)
CMYK	cmyk(0%, 64.6%, 66.9%, 29%)
CIE-LAB	lab(43.97, 47.12, 28.16)
CIE-LCH	lch(43.97, 54.89, 30.86°)
OKLab	oklab(53.51% 0.1377 0.0661)
OKLCH	oklch(53.51% 0.153 25.6)
XYZ	xyz(21.7073, 13.8198, 5.7985)
Luminance	0.1382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5403C #3CB1B5

analogous

#B53C75 #B5403C #B57C3C

triadic

#B5403C #3CB540 #403CB5

tetradic

#B5403C #75B53C #3CB1B5 #7C3CB5

square

#B5403C #75B53C #3CB1B5 #7C3CB5

split-complementary

#B5403C #3CB57C #3C75B5

monochromatic

#591F1E #87302D #B5403C #CB6663 #DB9391

Accessibility & contrast

On white

5.58

#B5403C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#B5403C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5403C

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5403C	#FFFFFF	#000000	##FFFFFF
##B5403C	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583B

Deuteranopia (green-blind)

#7D7139

Tritanopia (blue-blind)

#C72540

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b5403c;
/* rgb */ color: rgb(181, 64, 60);
/* oklch */ color: oklch(53.5% 0.153 25.6);

Tailwind

colors: {
  custom: {
    50: '#d27b72',
    500: '#b5403c',
    950: '#000000',
  },
}

SCSS

$custom: #b5403c;
$custom-light: #d27b72;
$custom-dark: #000000;

JSON

{
  "hex": "#b5403c",
  "rgb": {
    "r": 181,
    "g": 64,
    "b": 60
  },
  "hsl": {
    "h": 1.983,
    "s": 50.207,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53511,
    "c": 0.15276,
    "h": 25.6
  },
  "luminance": 0.13817
}

Semantic roles & 50–950 ramp

primary

#B5403C

secondary

#87C3C6

accent

#D5DA4E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B5403C

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

Preview Lab → · Contrast checker → · Palette generator →