#B43639#B43639

#B43639 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.162 H 23.5°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#B43639
RGB	rgb(180, 54, 57)
HSL	hsl(359, 54%, 46%)
HSV	hsv(359, 70%, 71%)
CMYK	cmyk(0%, 70%, 68.3%, 29.4%)
CIE-LAB	lab(42.22, 50.77, 27.76)
CIE-LCH	lch(42.22, 57.87, 28.67°)
OKLab	oklab(52.15% 0.1488 0.0648)
OKLCH	oklch(52.15% 0.162 23.5)
XYZ	xyz(20.8823, 12.6401, 5.2103)
Luminance	0.1264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43639 #36B4B1

analogous

#B43678 #B43639 #B47236

triadic

#B43639 #39B436 #3639B4

tetradic

#B43639 #78B436 #36B4B1 #7236B4

square

#B43639 #78B436 #36B4B1 #7236B4

split-complementary

#B43639 #36B472 #3678B4

monochromatic

#561A1B #85282A #B43639 #CD5A5D #DC898B

Accessibility & contrast

On white

5.95

#B43639 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#B43639 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43639

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43639	#FFFFFF	#000000	##FFFFFF
##B43639	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595238

Deuteranopia (green-blind)

#796E35

Tritanopia (blue-blind)

#C60F38

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b43639;
/* rgb */ color: rgb(180, 54, 57);
/* oklch */ color: oklch(52.1% 0.162 23.5);

Tailwind

colors: {
  custom: {
    50: '#d2756f',
    500: '#b43639',
    950: '#000000',
  },
}

SCSS

$custom: #b43639;
$custom-light: #d2756f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43639",
  "rgb": {
    "r": 180,
    "g": 54,
    "b": 57
  },
  "hsl": {
    "h": 358.571,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52147,
    "c": 0.16229,
    "h": 23.5
  },
  "luminance": 0.12637
}

Semantic roles & 50–950 ramp

primary

#B43639

secondary

#80C6C4

accent

#DDDA4B

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B43639

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

Preview Lab → · Contrast checker → · Palette generator →