#B1373D#B1373D

#B1373D is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.8% C 0.158 H 21.9°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#B1373D
RGB	rgb(177, 55, 61)
HSL	hsl(357, 53%, 45%)
HSV	hsv(357, 69%, 69%)
CMYK	cmyk(0%, 68.9%, 65.5%, 30.6%)
CIE-LAB	lab(41.87, 49.62, 24.79)
CIE-LCH	lch(41.87, 55.47, 26.55°)
OKLab	oklab(51.81% 0.1463 0.0588)
OKLCH	oklch(51.81% 0.158 21.9)
XYZ	xyz(20.3421, 12.4193, 5.7400)
Luminance	0.1242 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1373D #37B1AB

analogous

#B1377A #B1373D #B16E37

triadic

#B1373D #3DB137 #373DB1

tetradic

#B1373D #7AB137 #37B1AB #6E37B1

square

#B1373D #7AB137 #37B1AB #6E37B1

split-complementary

#B1373D #37B16E #377AB1

monochromatic

#541A1D #82282D #B1373D #CC5A5F #DA888C

Accessibility & contrast

On white

6.03

#B1373D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#B1373D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1373D

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1373D	#FFFFFF	#000000	##FFFFFF
##B1373D	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58523C

Deuteranopia (green-blind)

#776C3A

Tritanopia (blue-blind)

#C2163A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b1373d;
/* rgb */ color: rgb(177, 55, 61);
/* oklch */ color: oklch(51.8% 0.158 21.9);

Tailwind

colors: {
  custom: {
    50: '#cf7572',
    500: '#b1373d',
    950: '#000000',
  },
}

SCSS

$custom: #b1373d;
$custom-light: #cf7572;
$custom-dark: #000000;

JSON

{
  "hex": "#b1373d",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 357.049,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51811,
    "c": 0.15771,
    "h": 21.9
  },
  "luminance": 0.12416
}

Semantic roles & 50–950 ramp

primary

#B1373D

secondary

#80C4C1

accent

#DCD54C

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B1373D

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

Preview Lab → · Contrast checker → · Palette generator →