#B13639#B13639

#B13639 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.159 H 23.4°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#B13639
RGB	rgb(177, 54, 57)
HSL	hsl(359, 53%, 45%)
HSV	hsv(359, 69%, 69%)
CMYK	cmyk(0%, 69.5%, 67.8%, 30.6%)
CIE-LAB	lab(41.66, 49.79, 26.96)
CIE-LCH	lch(41.66, 56.62, 28.43°)
OKLab	oklab(51.63% 0.1461 0.0632)
OKLCH	oklch(51.63% 0.159 23.4)
XYZ	xyz(20.1913, 12.2838, 5.1779)
Luminance	0.1228 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13639 #36B1AE

analogous

#B13676 #B13639 #B17136

triadic

#B13639 #39B136 #3639B1

tetradic

#B13639 #76B136 #36B1AE #7136B1

square

#B13639 #76B136 #36B1AE #7136B1

split-complementary

#B13639 #36B171 #3676B1

monochromatic

#53191B #82282A #B13639 #CC585B #DA8789

Accessibility & contrast

On white

6.08

#B13639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B13639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13639

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13639	#FFFFFF	#000000	##FFFFFF
##B13639	1.00	6.08	3.46	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585238

Deuteranopia (green-blind)

#776C35

Tritanopia (blue-blind)

#C21238

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13639;
/* rgb */ color: rgb(177, 54, 57);
/* oklch */ color: oklch(51.6% 0.159 23.4);

Tailwind

colors: {
  custom: {
    50: '#d0756f',
    500: '#b13639',
    950: '#000000',
  },
}

SCSS

$custom: #b13639;
$custom-light: #d0756f;
$custom-dark: #000000;

JSON

{
  "hex": "#b13639",
  "rgb": {
    "r": 177,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.537,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51632,
    "c": 0.15912,
    "h": 23.4
  },
  "luminance": 0.12281
}

Semantic roles & 50–950 ramp

primary

#B13639

secondary

#7FC4C3

accent

#DDD94B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13639

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

Preview Lab → · Contrast checker → · Palette generator →