#B1372E#B1372E

#B1372E is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.6% C 0.160 H 28.2°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#B1372E
RGB	rgb(177, 55, 46)
HSL	hsl(4, 59%, 44%)
HSV	hsv(4, 74%, 69%)
CMYK	cmyk(0%, 68.9%, 74%, 30.6%)
CIE-LAB	lab(41.66, 48.84, 33.47)
CIE-LCH	lch(41.66, 59.21, 34.43°)
OKLab	oklab(51.58% 0.1407 0.0755)
OKLCH	oklch(51.58% 0.16 28.2)
XYZ	xyz(19.9930, 12.2797, 3.9017)
Luminance	0.1228 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1372E #2EA8B1

analogous

#B12E66 #B1372E #B1782E

triadic

#B1372E #2EB137 #372EB1

tetradic

#B1372E #66B12E #2EA8B1 #782EB1

square

#B1372E #66B12E #2EA8B1 #782EB1

split-complementary

#B1372E #2EB178 #2E66B1

monochromatic

#501915 #802821 #B1372E #D0554C #DD837C

Accessibility & contrast

On white

6.08

#B1372E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B1372E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1372E

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1372E	#FFFFFF	#000000	##FFFFFF
##B1372E	1.00	6.08	3.46	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A512C

Deuteranopia (green-blind)

#786C2A

Tritanopia (blue-blind)

#C31036

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b1372e;
/* rgb */ color: rgb(177, 55, 46);
/* oklch */ color: oklch(51.6% 0.160 28.2);

Tailwind

colors: {
  custom: {
    50: '#d07567',
    500: '#b1372e',
    950: '#000000',
  },
}

SCSS

$custom: #b1372e;
$custom-light: #d07567;
$custom-dark: #000000;

JSON

{
  "hex": "#b1372e",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 46
  },
  "hsl": {
    "h": 4.122,
    "s": 58.744,
    "l": 43.725
  },
  "oklch": {
    "l": 0.51578,
    "c": 0.15968,
    "h": 28.2
  },
  "luminance": 0.12277
}

Semantic roles & 50–950 ramp

primary

#B1372E

secondary

#75C0C6

accent

#D7E246

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B1372E

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

Preview Lab → · Contrast checker → · Palette generator →