#B43F40#B43F40

#B43F40 is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.3% C 0.152 H 23.4°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#B43F40
RGB	rgb(180, 63, 64)
HSL	hsl(359, 48%, 48%)
HSV	hsv(359, 65%, 71%)
CMYK	cmyk(0%, 65%, 64.4%, 29.4%)
CIE-LAB	lab(43.70, 47.45, 25.38)
CIE-LCH	lch(43.70, 53.82, 28.14°)
OKLab	oklab(53.29% 0.1397 0.0604)
OKLCH	oklch(53.29% 0.152 23.4)
XYZ	xyz(21.5274, 13.6314, 6.3470)
Luminance	0.1363 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43F40 #3FB4B3

analogous

#B43F7B #B43F40 #B4783F

triadic

#B43F40 #40B43F #3F40B4

tetradic

#B43F40 #7BB43F #3FB4B3 #783FB4

square

#B43F40 #7BB43F #3FB4B3 #783FB4

split-complementary

#B43F40 #3FB478 #3F7BB4

monochromatic

#591F20 #872F30 #B43F40 #CA6767 #DA9494

Accessibility & contrast

On white

5.64

#B43F40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#B43F40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43F40

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43F40	#FFFFFF	#000000	##FFFFFF
##B43F40	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E573F

Deuteranopia (green-blind)

#7B713D

Tritanopia (blue-blind)

#C52441

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b43f40;
/* rgb */ color: rgb(180, 63, 64);
/* oklch */ color: oklch(53.3% 0.152 23.4);

Tailwind

colors: {
  custom: {
    50: '#d17a75',
    500: '#b43f40',
    950: '#000000',
  },
}

SCSS

$custom: #b43f40;
$custom-light: #d17a75;
$custom-dark: #000000;

JSON

{
  "hex": "#b43f40",
  "rgb": {
    "r": 180,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 359.487,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53293,
    "c": 0.15218,
    "h": 23.4
  },
  "luminance": 0.13628
}

Semantic roles & 50–950 ramp

primary

#B43F40

secondary

#8AC5C4

accent

#D8D750

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B43F40

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

Preview Lab → · Contrast checker → · Palette generator →