#B3373E#B3373E

#B3373E is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.160 H 21.6°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#B3373E
RGB	rgb(179, 55, 62)
HSL	hsl(357, 53%, 46%)
HSV	hsv(357, 69%, 70%)
CMYK	cmyk(0%, 69.3%, 65.4%, 29.8%)
CIE-LAB	lab(42.26, 50.34, 24.74)
CIE-LCH	lch(42.26, 56.09, 26.17°)
OKLab	oklab(52.17% 0.1486 0.0588)
OKLCH	oklch(52.17% 0.16 21.6)
XYZ	xyz(20.8282, 12.6669, 5.9047)
Luminance	0.1266 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3373E #37B3AC

analogous

#B3377C #B3373E #B36E37

triadic

#B3373E #3EB337 #373EB3

tetradic

#B3373E #7CB337 #37B3AC #6E37B3

square

#B3373E #7CB337 #37B3AC #6E37B3

split-complementary

#B3373E #37B36E #377CB3

monochromatic

#551A1E #84292E #B3373E #CD5B61 #DB8A8E

Accessibility & contrast

On white

5.94

#B3373E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B3373E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3373E

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3373E	#FFFFFF	#000000	##FFFFFF
##B3373E	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59533D

Deuteranopia (green-blind)

#786D3A

Tritanopia (blue-blind)

#C4153B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b3373e;
/* rgb */ color: rgb(179, 55, 62);
/* oklch */ color: oklch(52.2% 0.160 21.6);

Tailwind

colors: {
  custom: {
    50: '#d17673',
    500: '#b3373e',
    950: '#000000',
  },
}

SCSS

$custom: #b3373e;
$custom-light: #d17673;
$custom-dark: #000000;

JSON

{
  "hex": "#b3373e",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 62
  },
  "hsl": {
    "h": 356.613,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52169,
    "c": 0.15975,
    "h": 21.6
  },
  "luminance": 0.12664
}

Semantic roles & 50–950 ramp

primary

#B3373E

secondary

#81C5C1

accent

#DCD44B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3373E

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

Preview Lab → · Contrast checker → · Palette generator →