#B43B28#B43B28

#B43B28 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.160 H 31.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B43B28
RGB	rgb(180, 59, 40)
HSL	hsl(8, 64%, 43%)
HSV	hsv(8, 78%, 71%)
CMYK	cmyk(0%, 67.2%, 77.8%, 29.4%)
CIE-LAB	lab(42.74, 47.96, 38.18)
CIE-LCH	lch(42.74, 61.30, 38.52°)
OKLab	oklab(52.47% 0.1364 0.084)
OKLCH	oklch(52.47% 0.16 31.6)
XYZ	xyz(20.7717, 12.9875, 3.4202)
Luminance	0.1298 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43B28 #28A1B4

analogous

#B4285B #B43B28 #B48128

triadic

#B43B28 #28B43B #3B28B4

tetradic

#B43B28 #5BB428 #28A1B4 #8128B4

square

#B43B28 #5BB428 #28A1B4 #8128B4

split-complementary

#B43B28 #28B481 #285BB4

monochromatic

#501A12 #822B1D #B43B28 #D55844 #E18476

Accessibility & contrast

On white

5.84

#B43B28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B43B28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43B28

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43B28	#FFFFFF	#000000	##FFFFFF
##B43B28	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5425

Deuteranopia (green-blind)

#7C6F23

Tritanopia (blue-blind)

#C61637

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43b28;
/* rgb */ color: rgb(180, 59, 40);
/* oklch */ color: oklch(52.5% 0.160 31.6);

Tailwind

colors: {
  custom: {
    50: '#d37763',
    500: '#b43b28',
    950: '#000000',
  },
}

SCSS

$custom: #b43b28;
$custom-light: #d37763;
$custom-dark: #000000;

JSON

{
  "hex": "#b43b28",
  "rgb": {
    "r": 180,
    "g": 59,
    "b": 40
  },
  "hsl": {
    "h": 8.143,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52473,
    "c": 0.16019,
    "h": 31.6
  },
  "luminance": 0.12984
}

Semantic roles & 50–950 ramp

primary

#B43B28

secondary

#70BCC8

accent

#D0E741

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B43B28

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

Preview Lab → · Contrast checker → · Palette generator →