#B5403E#B5403E

#B5403E is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.152 H 24.7°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#B5403E
RGB	rgb(181, 64, 62)
HSL	hsl(1, 49%, 48%)
HSV	hsv(1, 66%, 71%)
CMYK	cmyk(0%, 64.6%, 65.7%, 29%)
CIE-LAB	lab(44.00, 47.24, 27.00)
CIE-LCH	lch(44.00, 54.41, 29.75°)
OKLab	oklab(53.54% 0.1385 0.0638)
OKLCH	oklch(53.54% 0.152 24.7)
XYZ	xyz(21.7611, 13.8414, 6.0823)
Luminance	0.1384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5403E #3EB3B5

analogous

#B53E78 #B5403E #B57B3E

triadic

#B5403E #3EB540 #403EB5

tetradic

#B5403E #78B53E #3EB3B5 #7B3EB5

square

#B5403E #78B53E #3EB3B5 #7B3EB5

split-complementary

#B5403E #3EB57B #3E78B5

monochromatic

#5A201F #87302E #B5403E #CA6766 #DA9493

Accessibility & contrast

On white

5.57

#B5403E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B5403E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5403E

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5403E	#FFFFFF	#000000	##FFFFFF
##B5403E	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F583D

Deuteranopia (green-blind)

#7C713B

Tritanopia (blue-blind)

#C62541

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b5403e;
/* rgb */ color: rgb(181, 64, 62);
/* oklch */ color: oklch(53.5% 0.152 24.7);

Tailwind

colors: {
  custom: {
    50: '#d27b73',
    500: '#b5403e',
    950: '#000000',
  },
}

SCSS

$custom: #b5403e;
$custom-light: #d27b73;
$custom-dark: #000000;

JSON

{
  "hex": "#b5403e",
  "rgb": {
    "r": 181,
    "g": 64,
    "b": 62
  },
  "hsl": {
    "h": 1.008,
    "s": 48.971,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53544,
    "c": 0.15247,
    "h": 24.7
  },
  "luminance": 0.13838
}

Semantic roles & 50–950 ramp

primary

#B5403E

secondary

#89C4C5

accent

#D6D94F

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B5403E

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

Preview Lab → · Contrast checker → · Palette generator →