#B43A3F#B43A3F

#B43A3F is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.158 H 22.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B43A3F
RGB	rgb(180, 58, 63)
HSL	hsl(358, 51%, 47%)
HSV	hsv(358, 68%, 71%)
CMYK	cmyk(0%, 67.8%, 65%, 29.4%)
CIE-LAB	lab(42.90, 49.51, 24.98)
CIE-LCH	lch(42.90, 55.46, 26.77°)
OKLab	oklab(52.69% 0.146 0.0594)
OKLCH	oklch(52.69% 0.158 22.1)
XYZ	xyz(21.2348, 13.0913, 6.1104)
Luminance	0.1309 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43A3F #3AB4AF

analogous

#B43A7C #B43A3F #B4723A

triadic

#B43A3F #3FB43A #3A3FB4

tetradic

#B43A3F #7CB43A #3AB4AF #723AB4

square

#B43A3F #7CB43A #3AB4AF #723AB4

split-complementary

#B43A3F #3AB472 #3A7CB4

monochromatic

#571C1F #862B2F #B43A3F #CC6064 #DB8E91

Accessibility & contrast

On white

5.80

#B43A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B43A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43A3F

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43A3F	#FFFFFF	#000000	##FFFFFF
##B43A3F	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553E

Deuteranopia (green-blind)

#796F3C

Tritanopia (blue-blind)

#C51B3D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43a3f;
/* rgb */ color: rgb(180, 58, 63);
/* oklch */ color: oklch(52.7% 0.158 22.1);

Tailwind

colors: {
  custom: {
    50: '#d17774',
    500: '#b43a3f',
    950: '#000000',
  },
}

SCSS

$custom: #b43a3f;
$custom-light: #d17774;
$custom-dark: #000000;

JSON

{
  "hex": "#b43a3f",
  "rgb": {
    "r": 180,
    "g": 58,
    "b": 63
  },
  "hsl": {
    "h": 357.541,
    "s": 51.261,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52689,
    "c": 0.15762,
    "h": 22.1
  },
  "luminance": 0.13088
}

Semantic roles & 50–950 ramp

primary

#B43A3F

secondary

#85C5C3

accent

#DBD54D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43A3F

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

Preview Lab → · Contrast checker → · Palette generator →