#B3271A#B3271A

#B3271A is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.178 H 29.9°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B3271A
RGB	rgb(179, 39, 26)
HSL	hsl(5, 75%, 40%)
HSV	hsv(5, 85%, 70%)
CMYK	cmyk(0%, 78.2%, 85.5%, 29.8%)
CIE-LAB	lab(39.77, 54.54, 42.56)
CIE-LCH	lch(39.77, 69.18, 37.97°)
OKLab	oklab(50.18% 0.1544 0.0888)
OKLCH	oklch(50.18% 0.178 29.9)
XYZ	xyz(19.5048, 11.1125, 2.0950)
Luminance	0.1111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3271A #1AA6B3

analogous

#B31A59 #B3271A #B3731A

triadic

#B3271A #1AB327 #271AB3

tetradic

#B3271A #59B31A #1AA6B3 #731AB3

square

#B3271A #59B31A #1AA6B3 #731AB3

split-complementary

#B3271A #1AB373 #1A59B3

monochromatic

#48100A #7E1B12 #B3271A #E03A2A #E86B60

Accessibility & contrast

On white

6.52

#B3271A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B3271A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3271A

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3271A	#FFFFFF	#000000	##FFFFFF
##B3271A	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)

#544A16

Deuteranopia (green-blind)

#766911

Tritanopia (blue-blind)

#C60026

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3271a;
/* rgb */ color: rgb(179, 39, 26);
/* oklch */ color: oklch(50.2% 0.178 29.9);

Tailwind

colors: {
  custom: {
    50: '#d46e59',
    500: '#b3271a',
    950: '#000000',
  },
}

SCSS

$custom: #b3271a;
$custom-light: #d46e59;
$custom-dark: #000000;

JSON

{
  "hex": "#b3271a",
  "rgb": {
    "r": 179,
    "g": 39,
    "b": 26
  },
  "hsl": {
    "h": 5.098,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50175,
    "c": 0.17809,
    "h": 29.9
  },
  "luminance": 0.11109
}

Semantic roles & 50–950 ramp

primary

#B3271A

secondary

#5DC3CC

accent

#E1F137

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3271A

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

Preview Lab → · Contrast checker → · Palette generator →