#B53A40#B53A40

#B53A40 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.9% C 0.159 H 21.7°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B53A40
RGB	rgb(181, 58, 64)
HSL	hsl(357, 51%, 47%)
HSV	hsv(357, 68%, 71%)
CMYK	cmyk(0%, 68%, 64.6%, 29%)
CIE-LAB	lab(43.10, 49.91, 24.66)
CIE-LCH	lch(43.10, 55.67, 26.30°)
OKLab	oklab(52.88% 0.1473 0.0587)
OKLCH	oklch(52.88% 0.159 21.7)
XYZ	xyz(21.4967, 13.2231, 6.2699)
Luminance	0.1322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53A40 #3AB5AF

analogous

#B53A7E #B53A40 #B5723A

triadic

#B53A40 #40B53A #3A40B5

tetradic

#B53A40 #7EB53A #3AB5AF #723AB5

square

#B53A40 #7EB53A #3AB5AF #723AB5

split-complementary

#B53A40 #3AB572 #3A7EB5

monochromatic

#581C1F #872B30 #B53A40 #CC6065 #DB8E92

Accessibility & contrast

On white

5.76

#B53A40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B53A40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53A40

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53A40	#FFFFFF	#000000	##FFFFFF
##B53A40	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553F

Deuteranopia (green-blind)

#7A6F3D

Tritanopia (blue-blind)

#C61B3D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53a40;
/* rgb */ color: rgb(181, 58, 64);
/* oklch */ color: oklch(52.9% 0.159 21.7);

Tailwind

colors: {
  custom: {
    50: '#d27874',
    500: '#b53a40',
    950: '#000000',
  },
}

SCSS

$custom: #b53a40;
$custom-light: #d27874;
$custom-dark: #000000;

JSON

{
  "hex": "#b53a40",
  "rgb": {
    "r": 181,
    "g": 58,
    "b": 64
  },
  "hsl": {
    "h": 357.073,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52875,
    "c": 0.1586,
    "h": 21.7
  },
  "luminance": 0.1322
}

Semantic roles & 50–950 ramp

primary

#B53A40

secondary

#85C6C3

accent

#DBD44D

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53A40

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

Preview Lab → · Contrast checker → · Palette generator →