#B1373E#B1373E

#B1373E is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.158 H 21.4°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B1373E
RGB	rgb(177, 55, 62)
HSL	hsl(357, 53%, 45%)
HSV	hsv(357, 69%, 69%)
CMYK	cmyk(0%, 68.9%, 65%, 30.6%)
CIE-LAB	lab(41.89, 49.68, 24.20)
CIE-LCH	lch(41.89, 55.26, 25.97°)
OKLab	oklab(51.83% 0.1467 0.0576)
OKLCH	oklch(51.83% 0.158 21.4)
XYZ	xyz(20.3692, 12.4302, 5.8832)
Luminance	0.1243 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1373E #37B1AA

analogous

#B1377B #B1373E #B16D37

triadic

#B1373E #3EB137 #373EB1

tetradic

#B1373E #7BB137 #37B1AA #6D37B1

square

#B1373E #7BB137 #37B1AA #6D37B1

split-complementary

#B1373E #37B16D #377BB1

monochromatic

#541A1D #82282E #B1373E #CC5A60 #DA888D

Accessibility & contrast

On white

6.03

#B1373E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B1373E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1373E

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1373E	#FFFFFF	#000000	##FFFFFF
##B1373E	1.00	6.03	3.49	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58523D

Deuteranopia (green-blind)

#776C3B

Tritanopia (blue-blind)

#C2163B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b1373e;
/* rgb */ color: rgb(177, 55, 62);
/* oklch */ color: oklch(51.8% 0.158 21.4);

Tailwind

colors: {
  custom: {
    50: '#cf7573',
    500: '#b1373e',
    950: '#000000',
  },
}

SCSS

$custom: #b1373e;
$custom-light: #cf7573;
$custom-dark: #000000;

JSON

{
  "hex": "#b1373e",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 62
  },
  "hsl": {
    "h": 356.557,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51829,
    "c": 0.15762,
    "h": 21.4
  },
  "luminance": 0.12427
}

Semantic roles & 50–950 ramp

primary

#B1373E

secondary

#80C4C0

accent

#DCD44C

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B1373E

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

Preview Lab → · Contrast checker → · Palette generator →