#B13743#B13743

#B13743 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.157 H 19.1°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#B13743
RGB	rgb(177, 55, 67)
HSL	hsl(354, 53%, 45%)
HSV	hsv(354, 69%, 69%)
CMYK	cmyk(0%, 68.9%, 62.1%, 30.6%)
CIE-LAB	lab(41.98, 50.00, 21.25)
CIE-LCH	lch(41.98, 54.33, 23.02°)
OKLab	oklab(51.92% 0.1487 0.0514)
OKLCH	oklch(51.92% 0.157 19.1)
XYZ	xyz(20.5128, 12.4876, 6.6393)
Luminance	0.1249 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13743 #37B1A5

analogous

#B13780 #B13743 #B16837

triadic

#B13743 #43B137 #3743B1

tetradic

#B13743 #80B137 #37B1A5 #6837B1

square

#B13743 #80B137 #37B1A5 #6837B1

split-complementary

#B13743 #37B168 #3780B1

monochromatic

#541A20 #822831 #B13743 #CC5A65 #DA8890

Accessibility & contrast

On white

6.01

#B13743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B13743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13743

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13743	#FFFFFF	#000000	##FFFFFF
##B13743	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575343

Deuteranopia (green-blind)

#766D40

Tritanopia (blue-blind)

#C2183C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13743;
/* rgb */ color: rgb(177, 55, 67);
/* oklch */ color: oklch(51.9% 0.157 19.1);

Tailwind

colors: {
  custom: {
    50: '#cf7677',
    500: '#b13743',
    950: '#000000',
  },
}

SCSS

$custom: #b13743;
$custom-light: #cf7677;
$custom-dark: #000000;

JSON

{
  "hex": "#b13743",
  "rgb": {
    "r": 177,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 354.098,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51924,
    "c": 0.15733,
    "h": 19.1
  },
  "luminance": 0.12485
}

Semantic roles & 50–950 ramp

primary

#B13743

secondary

#80C4BD

accent

#DCCE4C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13743

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

Preview Lab → · Contrast checker → · Palette generator →