#B13740#B13740

#B13740 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.9% C 0.157 H 20.5°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B13740
RGB	rgb(177, 55, 64)
HSL	hsl(356, 53%, 45%)
HSV	hsv(356, 69%, 69%)
CMYK	cmyk(0%, 68.9%, 63.8%, 30.6%)
CIE-LAB	lab(41.93, 49.80, 23.02)
CIE-LCH	lch(41.93, 54.87, 24.81°)
OKLab	oklab(51.87% 0.1475 0.0551)
OKLCH	oklch(51.87% 0.157 20.5)
XYZ	xyz(20.4251, 12.4525, 6.1776)
Luminance	0.1245 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13740 #37B1A8

analogous

#B1377D #B13740 #B16B37

triadic

#B13740 #40B137 #3740B1

tetradic

#B13740 #7DB137 #37B1A8 #6B37B1

square

#B13740 #7DB137 #37B1A8 #6B37B1

split-complementary

#B13740 #37B16B #377DB1

monochromatic

#541A1E #82282F #B13740 #CC5A62 #DA888E

Accessibility & contrast

On white

6.02

#B13740 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B13740 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13740

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13740	#FFFFFF	#000000	##FFFFFF
##B13740	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58533F

Deuteranopia (green-blind)

#766C3D

Tritanopia (blue-blind)

#C2173B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13740;
/* rgb */ color: rgb(177, 55, 64);
/* oklch */ color: oklch(51.9% 0.157 20.5);

Tailwind

colors: {
  custom: {
    50: '#cf7674',
    500: '#b13740',
    950: '#000000',
  },
}

SCSS

$custom: #b13740;
$custom-light: #cf7674;
$custom-dark: #000000;

JSON

{
  "hex": "#b13740",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 64
  },
  "hsl": {
    "h": 355.574,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51866,
    "c": 0.15748,
    "h": 20.5
  },
  "luminance": 0.1245
}

Semantic roles & 50–950 ramp

primary

#B13740

secondary

#80C4BF

accent

#DCD14C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13740

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

Preview Lab → · Contrast checker → · Palette generator →