#B3271D#B3271D

#B3271D is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.178 H 29.2°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B3271D
RGB	rgb(179, 39, 29)
HSL	hsl(4, 72%, 41%)
HSV	hsv(4, 84%, 70%)
CMYK	cmyk(0%, 78.2%, 83.8%, 29.8%)
CIE-LAB	lab(39.79, 54.61, 41.06)
CIE-LCH	lch(39.79, 68.33, 36.94°)
OKLab	oklab(50.2% 0.1552 0.0866)
OKLCH	oklch(50.2% 0.178 29.2)
XYZ	xyz(19.5401, 11.1266, 2.2810)
Luminance	0.1112 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3271D #1DA9B3

analogous

#B31D5E #B3271D #B3721D

triadic

#B3271D #1DB327 #271DB3

tetradic

#B3271D #5EB31D #1DA9B3 #721DB3

square

#B3271D #5EB31D #1DA9B3 #721DB3

split-complementary

#B3271D #1DB372 #1D5EB3

monochromatic

#4A100C #7E1C14 #B3271D #DD3B30 #E66D64

Accessibility & contrast

On white

6.51

#B3271D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B3271D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3271D

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3271D	#FFFFFF	#000000	##FFFFFF
##B3271D	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)

#534A1A

Deuteranopia (green-blind)

#766915

Tritanopia (blue-blind)

#C60027

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3271d;
/* rgb */ color: rgb(179, 39, 29);
/* oklch */ color: oklch(50.2% 0.178 29.2);

Tailwind

colors: {
  custom: {
    50: '#d46e5b',
    500: '#b3271d',
    950: '#000000',
  },
}

SCSS

$custom: #b3271d;
$custom-light: #d46e5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3271d",
  "rgb": {
    "r": 179,
    "g": 39,
    "b": 29
  },
  "hsl": {
    "h": 4,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.502,
    "c": 0.17772,
    "h": 29.2
  },
  "luminance": 0.11123
}

Semantic roles & 50–950 ramp

primary

#B3271D

secondary

#61C4CB

accent

#E3EF39

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3271D

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

Preview Lab → · Contrast checker → · Palette generator →