#B13539#B13539

#B13539 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.160 H 23.1°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#B13539
RGB	rgb(177, 53, 57)
HSL	hsl(358, 54%, 45%)
HSV	hsv(358, 70%, 69%)
CMYK	cmyk(0%, 70.1%, 67.8%, 30.6%)
CIE-LAB	lab(41.52, 50.19, 26.78)
CIE-LCH	lch(41.52, 56.89, 28.09°)
OKLab	oklab(51.52% 0.1473 0.0628)
OKLCH	oklch(51.52% 0.16 23.1)
XYZ	xyz(20.1452, 12.1917, 5.1626)
Luminance	0.1219 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13539 #35B1AD

analogous

#B13577 #B13539 #B16F35

triadic

#B13539 #39B135 #3539B1

tetradic

#B13539 #77B135 #35B1AD #6F35B1

square

#B13539 #77B135 #35B1AD #6F35B1

split-complementary

#B13539 #35B16F #3577B1

monochromatic

#53191B #82272A #B13539 #CD575A #DB8688

Accessibility & contrast

On white

6.11

#B13539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B13539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13539

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13539	#FFFFFF	#000000	##FFFFFF
##B13539	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575138

Deuteranopia (green-blind)

#766C35

Tritanopia (blue-blind)

#C20F38

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13539;
/* rgb */ color: rgb(177, 53, 57);
/* oklch */ color: oklch(51.5% 0.160 23.1);

Tailwind

colors: {
  custom: {
    50: '#d0746f',
    500: '#b13539',
    950: '#000000',
  },
}

SCSS

$custom: #b13539;
$custom-light: #d0746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b13539",
  "rgb": {
    "r": 177,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 358.065,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51524,
    "c": 0.16011,
    "h": 23.1
  },
  "luminance": 0.12189
}

Semantic roles & 50–950 ramp

primary

#B13539

secondary

#7DC4C2

accent

#DDD94B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13539

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

Preview Lab → · Contrast checker → · Palette generator →