#B13D37#B13D37

#B13D37 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.152 H 26.7°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B13D37
RGB	rgb(177, 61, 55)
HSL	hsl(3, 53%, 45%)
HSV	hsv(3, 69%, 69%)
CMYK	cmyk(0%, 65.5%, 68.9%, 30.6%)
CIE-LAB	lab(42.71, 46.76, 29.43)
CIE-LCH	lch(42.71, 55.25, 32.18°)
OKLab	oklab(52.41% 0.1361 0.0683)
OKLCH	oklch(52.41% 0.152 26.7)
XYZ	xyz(20.4919, 12.9633, 5.0368)
Luminance	0.1296 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13D37 #37ABB1

analogous

#B1376E #B13D37 #B17A37

triadic

#B13D37 #37B13D #3D37B1

tetradic

#B13D37 #6EB137 #37ABB1 #7A37B1

square

#B13D37 #6EB137 #37ABB1 #7A37B1

split-complementary

#B13D37 #37B17A #376EB1

monochromatic

#541D1A #822D28 #B13D37 #CC5F5A #DA8C88

Accessibility & contrast

On white

5.85

#B13D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B13D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13D37

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13D37	#FFFFFF	#000000	##FFFFFF
##B13D37	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5535

Deuteranopia (green-blind)

#7A6E34

Tritanopia (blue-blind)

#C2203D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13d37;
/* rgb */ color: rgb(177, 61, 55);
/* oklch */ color: oklch(52.4% 0.152 26.7);

Tailwind

colors: {
  custom: {
    50: '#cf796e',
    500: '#b13d37',
    950: '#000000',
  },
}

SCSS

$custom: #b13d37;
$custom-light: #cf796e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13d37",
  "rgb": {
    "r": 177,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 2.951,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52405,
    "c": 0.15225,
    "h": 26.7
  },
  "luminance": 0.1296
}

Semantic roles & 50–950 ramp

primary

#B13D37

secondary

#80C1C4

accent

#D5DC4C

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13D37

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

Preview Lab → · Contrast checker → · Palette generator →