#B3373D#B3373D

#B3373D is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.160 H 22.0°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B3373D
RGB	rgb(179, 55, 61)
HSL	hsl(357, 53%, 46%)
HSV	hsv(357, 69%, 70%)
CMYK	cmyk(0%, 69.3%, 65.9%, 29.8%)
CIE-LAB	lab(42.24, 50.28, 25.33)
CIE-LCH	lch(42.24, 56.30, 26.74°)
OKLab	oklab(52.15% 0.1482 0.06)
OKLCH	oklch(52.15% 0.16 22)
XYZ	xyz(20.8011, 12.6560, 5.7615)
Luminance	0.1265 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3373D #37B3AD

analogous

#B3377B #B3373D #B36F37

triadic

#B3373D #3DB337 #373DB3

tetradic

#B3373D #7BB337 #37B3AD #6F37B3

square

#B3373D #7BB337 #37B3AD #6F37B3

split-complementary

#B3373D #37B36F #377BB3

monochromatic

#551A1D #84292D #B3373D #CD5B60 #DB8A8D

Accessibility & contrast

On white

5.95

#B3373D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B3373D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3373D

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3373D	#FFFFFF	#000000	##FFFFFF
##B3373D	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59533C

Deuteranopia (green-blind)

#786D39

Tritanopia (blue-blind)

#C4143A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b3373d;
/* rgb */ color: rgb(179, 55, 61);
/* oklch */ color: oklch(52.2% 0.160 22.0);

Tailwind

colors: {
  custom: {
    50: '#d17672',
    500: '#b3373d',
    950: '#000000',
  },
}

SCSS

$custom: #b3373d;
$custom-light: #d17672;
$custom-dark: #000000;

JSON

{
  "hex": "#b3373d",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 357.097,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52151,
    "c": 0.15984,
    "h": 22
  },
  "luminance": 0.12653
}

Semantic roles & 50–950 ramp

primary

#B3373D

secondary

#81C5C2

accent

#DCD54B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3373D

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

Preview Lab → · Contrast checker → · Palette generator →