#B3271B#B3271B

#B3271B is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.178 H 29.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B3271B
RGB	rgb(179, 39, 27)
HSL	hsl(5, 74%, 40%)
HSV	hsv(5, 85%, 70%)
CMYK	cmyk(0%, 78.2%, 84.9%, 29.8%)
CIE-LAB	lab(39.78, 54.56, 42.07)
CIE-LCH	lch(39.78, 68.90, 37.63°)
OKLab	oklab(50.18% 0.1547 0.0881)
OKLCH	oklch(50.18% 0.178 29.7)
XYZ	xyz(19.5162, 11.1170, 2.1549)
Luminance	0.1111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3271B #1BA7B3

analogous

#B31B5B #B3271B #B3731B

triadic

#B3271B #1BB327 #271BB3

tetradic

#B3271B #5BB31B #1BA7B3 #731BB3

square

#B3271B #5BB31B #1BA7B3 #731BB3

split-complementary

#B3271B #1BB373 #1B5BB3

monochromatic

#49100B #7E1B13 #B3271B #DF3A2C #E76C61

Accessibility & contrast

On white

6.52

#B3271B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B3271B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3271B

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3271B	#FFFFFF	#000000	##FFFFFF
##B3271B	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A17

Deuteranopia (green-blind)

#766912

Tritanopia (blue-blind)

#C60026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3271b;
/* rgb */ color: rgb(179, 39, 27);
/* oklch */ color: oklch(50.2% 0.178 29.7);

Tailwind

colors: {
  custom: {
    50: '#d46e5a',
    500: '#b3271b',
    950: '#000000',
  },
}

SCSS

$custom: #b3271b;
$custom-light: #d46e5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b3271b",
  "rgb": {
    "r": 179,
    "g": 39,
    "b": 27
  },
  "hsl": {
    "h": 4.737,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.50183,
    "c": 0.17797,
    "h": 29.7
  },
  "luminance": 0.11114
}

Semantic roles & 50–950 ramp

primary

#B3271B

secondary

#5EC3CC

accent

#E2F037

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3271B

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

Preview Lab → · Contrast checker → · Palette generator →