#B53545#B53545

#B53545 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.164 H 17.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B53545
RGB	rgb(181, 53, 69)
HSL	hsl(353, 55%, 46%)
HSV	hsv(353, 71%, 71%)
CMYK	cmyk(0%, 70.7%, 61.9%, 29%)
CIE-LAB	lab(42.46, 52.20, 20.78)
CIE-LCH	lch(42.46, 56.19, 21.71°)
OKLab	oklab(52.43% 0.1556 0.0504)
OKLCH	oklch(52.43% 0.164 17.9)
XYZ	xyz(21.4055, 12.8027, 6.9731)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53545 #35B5A5

analogous

#B53585 #B53545 #B56535

triadic

#B53545 #45B535 #3545B5

tetradic

#B53545 #85B535 #35B5A5 #6535B5

square

#B53545 #85B535 #35B5A5 #6535B5

split-complementary

#B53545 #35B565 #3585B5

monochromatic

#561921 #862733 #B53545 #CE5968 #DC8893

Accessibility & contrast

On white

5.90

#B53545 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B53545 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53545

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53545	#FFFFFF	#000000	##FFFFFF
##B53545	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575345

Deuteranopia (green-blind)

#786E42

Tritanopia (blue-blind)

#C6113C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53545;
/* rgb */ color: rgb(181, 53, 69);
/* oklch */ color: oklch(52.4% 0.164 17.9);

Tailwind

colors: {
  custom: {
    50: '#d27578',
    500: '#b53545',
    950: '#000000',
  },
}

SCSS

$custom: #b53545;
$custom-light: #d27578;
$custom-dark: #000000;

JSON

{
  "hex": "#b53545",
  "rgb": {
    "r": 181,
    "g": 53,
    "b": 69
  },
  "hsl": {
    "h": 352.5,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52432,
    "c": 0.16356,
    "h": 17.9
  },
  "luminance": 0.128
}

Semantic roles & 50–950 ramp

primary

#B53545

secondary

#80C6BD

accent

#DECC4A

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150909

muted

#837B7B

Preview Lab

Preview with #B53545

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

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