#B1372F#B1372F

#B1372F is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.160 H 27.8°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B1372F
RGB	rgb(177, 55, 47)
HSL	hsl(4, 58%, 44%)
HSV	hsv(4, 73%, 69%)
CMYK	cmyk(0%, 68.9%, 73.4%, 30.6%)
CIE-LAB	lab(41.67, 48.88, 32.91)
CIE-LCH	lch(41.67, 58.93, 33.95°)
OKLab	oklab(51.59% 0.1411 0.0744)
OKLCH	oklch(51.59% 0.16 27.8)
XYZ	xyz(20.0130, 12.2877, 4.0067)
Luminance	0.1229 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1372F #2FA9B1

analogous

#B12F68 #B1372F #B1782F

triadic

#B1372F #2FB137 #372FB1

tetradic

#B1372F #68B12F #2FA9B1 #782FB1

square

#B1372F #68B12F #2FA9B1 #782FB1

split-complementary

#B1372F #2FB178 #2F68B1

monochromatic

#501915 #812822 #B1372F #D0554D #DD847E

Accessibility & contrast

On white

6.07

#B1372F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B1372F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1372F

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1372F	#FFFFFF	#000000	##FFFFFF
##B1372F	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A512D

Deuteranopia (green-blind)

#786C2B

Tritanopia (blue-blind)

#C31036

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b1372f;
/* rgb */ color: rgb(177, 55, 47);
/* oklch */ color: oklch(51.6% 0.160 27.8);

Tailwind

colors: {
  custom: {
    50: '#d07568',
    500: '#b1372f',
    950: '#000000',
  },
}

SCSS

$custom: #b1372f;
$custom-light: #d07568;
$custom-dark: #000000;

JSON

{
  "hex": "#b1372f",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 47
  },
  "hsl": {
    "h": 3.692,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.51592,
    "c": 0.15951,
    "h": 27.8
  },
  "luminance": 0.12285
}

Semantic roles & 50–950 ramp

primary

#B1372F

secondary

#76C0C5

accent

#D8E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B1372F

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

Preview Lab → · Contrast checker → · Palette generator →