#B3271C#B3271C

#B3271C is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.178 H 29.4°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B3271C
RGB	rgb(179, 39, 28)
HSL	hsl(4, 73%, 41%)
HSV	hsv(4, 84%, 70%)
CMYK	cmyk(0%, 78.2%, 84.4%, 29.8%)
CIE-LAB	lab(39.78, 54.59, 41.57)
CIE-LCH	lch(39.78, 68.61, 37.29°)
OKLab	oklab(50.19% 0.1549 0.0874)
OKLCH	oklch(50.19% 0.178 29.4)
XYZ	xyz(19.5279, 11.1217, 2.2169)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3271C #1CA8B3

analogous

#B31C5C #B3271C #B3721C

triadic

#B3271C #1CB327 #271CB3

tetradic

#B3271C #5CB31C #1CA8B3 #721CB3

square

#B3271C #5CB31C #1CA8B3 #721CB3

split-complementary

#B3271C #1CB372 #1C5CB3

monochromatic

#49100B #7E1B14 #B3271C #DE3B2E #E76C63

Accessibility & contrast

On white

6.51

#B3271C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B3271C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3271C

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3271C	#FFFFFF	#000000	##FFFFFF
##B3271C	1.00	6.51	3.22	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A19

Deuteranopia (green-blind)

#766914

Tritanopia (blue-blind)

#C60026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3271c;
/* rgb */ color: rgb(179, 39, 28);
/* oklch */ color: oklch(50.2% 0.178 29.4);

Tailwind

colors: {
  custom: {
    50: '#d46e5a',
    500: '#b3271c',
    950: '#000000',
  },
}

SCSS

$custom: #b3271c;
$custom-light: #d46e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b3271c",
  "rgb": {
    "r": 179,
    "g": 39,
    "b": 28
  },
  "hsl": {
    "h": 4.371,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50191,
    "c": 0.17784,
    "h": 29.4
  },
  "luminance": 0.11119
}

Semantic roles & 50–950 ramp

primary

#B3271C

secondary

#5FC3CB

accent

#E2F038

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3271C

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

Preview Lab → · Contrast checker → · Palette generator →