#B53F3A#B53F3A

#B53F3A is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.4% C 0.154 H 26.1°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#B53F3A
RGB	rgb(181, 63, 58)
HSL	hsl(2, 51%, 47%)
HSV	hsv(2, 68%, 71%)
CMYK	cmyk(0%, 65.2%, 68%, 29%)
CIE-LAB	lab(43.78, 47.44, 29.11)
CIE-LCH	lch(43.78, 55.66, 31.53°)
OKLab	oklab(53.36% 0.1384 0.0679)
OKLCH	oklch(53.36% 0.154 26.1)
XYZ	xyz(21.5995, 13.6873, 5.5067)
Luminance	0.1368 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53F3A #3AB0B5

analogous

#B53A73 #B53F3A #B57D3A

triadic

#B53F3A #3AB53F #3F3AB5

tetradic

#B53F3A #73B53A #3AB0B5 #7D3AB5

square

#B53F3A #73B53A #3AB0B5 #7D3AB5

split-complementary

#B53F3A #3AB57D #3A73B5

monochromatic

#581F1C #872F2B #B53F3A #CC6560 #DB928E

Accessibility & contrast

On white

5.62

#B53F3A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#B53F3A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53F3A

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53F3A	#FFFFFF	#000000	##FFFFFF
##B53F3A	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5739

Deuteranopia (green-blind)

#7C7137

Tritanopia (blue-blind)

#C7223F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53f3a;
/* rgb */ color: rgb(181, 63, 58);
/* oklch */ color: oklch(53.4% 0.154 26.1);

Tailwind

colors: {
  custom: {
    50: '#d27a70',
    500: '#b53f3a',
    950: '#000000',
  },
}

SCSS

$custom: #b53f3a;
$custom-light: #d27a70;
$custom-dark: #000000;

JSON

{
  "hex": "#b53f3a",
  "rgb": {
    "r": 181,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 2.439,
    "s": 51.464,
    "l": 46.863
  },
  "oklch": {
    "l": 0.53357,
    "c": 0.15411,
    "h": 26.1
  },
  "luminance": 0.13684
}

Semantic roles & 50–950 ramp

primary

#B53F3A

secondary

#85C3C6

accent

#D5DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B53F3A

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

Preview Lab → · Contrast checker → · Palette generator →