#B13538#B13538

#B13538 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.160 H 23.5°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#B13538
RGB	rgb(177, 53, 56)
HSL	hsl(359, 54%, 45%)
HSV	hsv(359, 70%, 69%)
CMYK	cmyk(0%, 70.1%, 68.4%, 30.6%)
CIE-LAB	lab(41.50, 50.13, 27.37)
CIE-LCH	lch(41.50, 57.12, 28.63°)
OKLab	oklab(51.51% 0.1469 0.0639)
OKLCH	oklch(51.51% 0.16 23.5)
XYZ	xyz(20.1205, 12.1818, 5.0325)
Luminance	0.1218 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13538 #35B1AE

analogous

#B13576 #B13538 #B17035

triadic

#B13538 #38B135 #3538B1

tetradic

#B13538 #76B135 #35B1AE #7035B1

square

#B13538 #76B135 #35B1AE #7035B1

split-complementary

#B13538 #35B170 #3576B1

monochromatic

#53191A #822729 #B13538 #CD5759 #DB8688

Accessibility & contrast

On white

6.11

#B13538 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B13538 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13538

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13538	#FFFFFF	#000000	##FFFFFF
##B13538	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)

#575137

Deuteranopia (green-blind)

#776C34

Tritanopia (blue-blind)

#C20E37

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13538;
/* rgb */ color: rgb(177, 53, 56);
/* oklch */ color: oklch(51.5% 0.160 23.5);

Tailwind

colors: {
  custom: {
    50: '#d0746e',
    500: '#b13538',
    950: '#000000',
  },
}

SCSS

$custom: #b13538;
$custom-light: #d0746e;
$custom-dark: #000000;

JSON

{
  "hex": "#b13538",
  "rgb": {
    "r": 177,
    "g": 53,
    "b": 56
  },
  "hsl": {
    "h": 358.548,
    "s": 53.913,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51508,
    "c": 0.16022,
    "h": 23.5
  },
  "luminance": 0.12179
}

Semantic roles & 50–950 ramp

primary

#B13538

secondary

#7DC4C3

accent

#DDDA4B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B13538

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

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