#B3271F#B3271F

#B3271F is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.177 H 28.7°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#B3271F
RGB	rgb(179, 39, 31)
HSL	hsl(3, 70%, 41%)
HSV	hsv(3, 83%, 70%)
CMYK	cmyk(0%, 78.2%, 82.7%, 29.8%)
CIE-LAB	lab(39.81, 54.67, 40.03)
CIE-LCH	lch(39.81, 67.75, 36.21°)
OKLab	oklab(50.22% 0.1557 0.0851)
OKLCH	oklch(50.22% 0.177 28.7)
XYZ	xyz(19.5657, 11.1368, 2.4155)
Luminance	0.1113 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3271F #1FABB3

analogous

#B31F61 #B3271F #B3711F

triadic

#B3271F #1FB327 #271FB3

tetradic

#B3271F #61B31F #1FABB3 #711FB3

square

#B3271F #61B31F #1FABB3 #711FB3

split-complementary

#B3271F #1FB371 #1F61B3

monochromatic

#4B100D #7F1C16 #B3271F #DC3D33 #E56E68

Accessibility & contrast

On white

6.51

#B3271F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#B3271F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3271F

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3271F	#FFFFFF	#000000	##FFFFFF
##B3271F	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534A1C

Deuteranopia (green-blind)

#766917

Tritanopia (blue-blind)

#C60027

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3271f;
/* rgb */ color: rgb(179, 39, 31);
/* oklch */ color: oklch(50.2% 0.177 28.7);

Tailwind

colors: {
  custom: {
    50: '#d36e5c',
    500: '#b3271f',
    950: '#000000',
  },
}

SCSS

$custom: #b3271f;
$custom-light: #d36e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#b3271f",
  "rgb": {
    "r": 179,
    "g": 39,
    "b": 31
  },
  "hsl": {
    "h": 3.243,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50218,
    "c": 0.17747,
    "h": 28.7
  },
  "luminance": 0.11134
}

Semantic roles & 50–950 ramp

primary

#B3271F

secondary

#64C5CA

accent

#E4ED3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3271F

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

Preview Lab → · Contrast checker → · Palette generator →