#B43741#B43741

#B43741 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.161 H 20.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B43741
RGB	rgb(180, 55, 65)
HSL	hsl(355, 53%, 46%)
HSV	hsv(355, 69%, 71%)
CMYK	cmyk(0%, 69.4%, 63.9%, 29.4%)
CIE-LAB	lab(42.49, 50.85, 23.24)
CIE-LCH	lch(42.49, 55.91, 24.56°)
OKLab	oklab(52.4% 0.1507 0.0557)
OKLCH	oklch(52.4% 0.161 20.3)
XYZ	xyz(21.1449, 12.8203, 6.3612)
Luminance	0.1282 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43741 #37B4AA

analogous

#B4377F #B43741 #B46B37

triadic

#B43741 #41B437 #3741B4

tetradic

#B43741 #7FB437 #37B4AA #6B37B4

square

#B43741 #7FB437 #37B4AA #6B37B4

split-complementary

#B43741 #37B46B #377FB4

monochromatic

#561A1F #852930 #B43741 #CD5B64 #DB8A91

Accessibility & contrast

On white

5.89

#B43741 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B43741 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43741

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43741	#FFFFFF	#000000	##FFFFFF
##B43741	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595340

Deuteranopia (green-blind)

#786E3E

Tritanopia (blue-blind)

#C5153C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43741;
/* rgb */ color: rgb(180, 55, 65);
/* oklch */ color: oklch(52.4% 0.161 20.3);

Tailwind

colors: {
  custom: {
    50: '#d17675',
    500: '#b43741',
    950: '#000000',
  },
}

SCSS

$custom: #b43741;
$custom-light: #d17675;
$custom-dark: #000000;

JSON

{
  "hex": "#b43741",
  "rgb": {
    "r": 180,
    "g": 55,
    "b": 65
  },
  "hsl": {
    "h": 355.2,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52395,
    "c": 0.1606,
    "h": 20.3
  },
  "luminance": 0.12817
}

Semantic roles & 50–950 ramp

primary

#B43741

secondary

#81C6C0

accent

#DDD14B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43741

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

Preview Lab → · Contrast checker → · Palette generator →