#B13E37#B13E37

#B13E37 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.151 H 27.0°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B13E37
RGB	rgb(177, 62, 55)
HSL	hsl(3, 53%, 45%)
HSV	hsv(3, 69%, 69%)
CMYK	cmyk(0%, 65%, 68.9%, 30.6%)
CIE-LAB	lab(42.87, 46.33, 29.62)
CIE-LCH	lch(42.87, 54.99, 32.59°)
OKLab	oklab(52.53% 0.1347 0.0687)
OKLCH	oklch(52.53% 0.151 27)
XYZ	xyz(20.5458, 13.0711, 5.0548)
Luminance	0.1307 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13E37 #37AAB1

analogous

#B1376D #B13E37 #B17B37

triadic

#B13E37 #37B13E #3E37B1

tetradic

#B13E37 #6DB137 #37AAB1 #7B37B1

square

#B13E37 #6DB137 #37AAB1 #7B37B1

split-complementary

#B13E37 #37B17B #376DB1

monochromatic

#541D1A #822E28 #B13E37 #CC605A #DA8D88

Accessibility & contrast

On white

5.81

#B13E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B13E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13E37

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13E37	#FFFFFF	#000000	##FFFFFF
##B13E37	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5635

Deuteranopia (green-blind)

#7A6E34

Tritanopia (blue-blind)

#C2223D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13e37;
/* rgb */ color: rgb(177, 62, 55);
/* oklch */ color: oklch(52.5% 0.151 27.0);

Tailwind

colors: {
  custom: {
    50: '#cf796e',
    500: '#b13e37',
    950: '#000000',
  },
}

SCSS

$custom: #b13e37;
$custom-light: #cf796e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13e37",
  "rgb": {
    "r": 177,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 3.443,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52526,
    "c": 0.15123,
    "h": 27
  },
  "luminance": 0.13068
}

Semantic roles & 50–950 ramp

primary

#B13E37

secondary

#80C0C4

accent

#D4DC4C

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13E37

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

Preview Lab → · Contrast checker → · Palette generator →