#B43F28#B43F28

#B43F28 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.156 H 33.1°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B43F28
RGB	rgb(180, 63, 40)
HSL	hsl(10, 64%, 43%)
HSV	hsv(10, 78%, 71%)
CMYK	cmyk(0%, 65%, 77.8%, 29.4%)
CIE-LAB	lab(43.38, 46.25, 38.84)
CIE-LCH	lch(43.38, 60.39, 40.03°)
OKLab	oklab(52.95% 0.1311 0.0854)
OKLCH	oklch(52.95% 0.156 33.1)
XYZ	xyz(20.9852, 13.4145, 3.4913)
Luminance	0.1341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43F28 #289DB4

analogous

#B42857 #B43F28 #B48528

triadic

#B43F28 #28B43F #3F28B4

tetradic

#B43F28 #57B428 #289DB4 #8528B4

square

#B43F28 #57B428 #289DB4 #8528B4

split-complementary

#B43F28 #28B485 #2857B4

monochromatic

#501C12 #822D1D #B43F28 #D55C44 #E18776

Accessibility & contrast

On white

5.70

#B43F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B43F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43F28

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43F28	#FFFFFF	#000000	##FFFFFF
##B43F28	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605625

Deuteranopia (green-blind)

#7D7024

Tritanopia (blue-blind)

#C61F3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43f28;
/* rgb */ color: rgb(180, 63, 40);
/* oklch */ color: oklch(53.0% 0.156 33.1);

Tailwind

colors: {
  custom: {
    50: '#d37a63',
    500: '#b43f28',
    950: '#000000',
  },
}

SCSS

$custom: #b43f28;
$custom-light: #d37a63;
$custom-dark: #000000;

JSON

{
  "hex": "#b43f28",
  "rgb": {
    "r": 180,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 9.857,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52952,
    "c": 0.15645,
    "h": 33.1
  },
  "luminance": 0.13412
}

Semantic roles & 50–950 ramp

primary

#B43F28

secondary

#70BAC8

accent

#CBE741

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B43F28

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

Preview Lab → · Contrast checker → · Palette generator →