#B43A40#B43A40

#B43A40 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.7% C 0.158 H 21.7°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#B43A40
RGB	rgb(180, 58, 64)
HSL	hsl(357, 51%, 47%)
HSV	hsv(357, 68%, 71%)
CMYK	cmyk(0%, 67.8%, 64.4%, 29.4%)
CIE-LAB	lab(42.92, 49.57, 24.40)
CIE-LCH	lch(42.92, 55.25, 26.20°)
OKLab	oklab(52.71% 0.1464 0.0582)
OKLCH	oklch(52.71% 0.158 21.7)
XYZ	xyz(21.2630, 13.1026, 6.2589)
Luminance	0.1310 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43A40 #3AB4AE

analogous

#B43A7D #B43A40 #B4713A

triadic

#B43A40 #40B43A #3A40B4

tetradic

#B43A40 #7DB43A #3AB4AE #713AB4

square

#B43A40 #7DB43A #3AB4AE #713AB4

split-complementary

#B43A40 #3AB471 #3A7DB4

monochromatic

#571C1F #862B30 #B43A40 #CC6065 #DB8E92

Accessibility & contrast

On white

5.80

#B43A40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B43A40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43A40

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43A40	#FFFFFF	#000000	##FFFFFF
##B43A40	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)

#5B553F

Deuteranopia (green-blind)

#796F3D

Tritanopia (blue-blind)

#C51B3D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43a40;
/* rgb */ color: rgb(180, 58, 64);
/* oklch */ color: oklch(52.7% 0.158 21.7);

Tailwind

colors: {
  custom: {
    50: '#d17774',
    500: '#b43a40',
    950: '#000000',
  },
}

SCSS

$custom: #b43a40;
$custom-light: #d17774;
$custom-dark: #000000;

JSON

{
  "hex": "#b43a40",
  "rgb": {
    "r": 180,
    "g": 58,
    "b": 64
  },
  "hsl": {
    "h": 357.049,
    "s": 51.261,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52707,
    "c": 0.15754,
    "h": 21.7
  },
  "luminance": 0.131
}

Semantic roles & 50–950 ramp

primary

#B43A40

secondary

#85C5C2

accent

#DBD44D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B43A40

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

Preview Lab → · Contrast checker → · Palette generator →