#B53135#B53135

#B53135 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.169 H 23.8°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#B53135
RGB	rgb(181, 49, 53)
HSL	hsl(358, 57%, 45%)
HSV	hsv(358, 73%, 71%)
CMYK	cmyk(0%, 72.9%, 70.7%, 29%)
CIE-LAB	lab(41.66, 52.78, 29.54)
CIE-LCH	lch(41.66, 60.48, 29.24°)
OKLab	oklab(51.75% 0.1542 0.068)
OKLCH	oklch(51.75% 0.169 23.8)
XYZ	xyz(20.7993, 12.2806, 4.6427)
Luminance	0.1228 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53135 #31B5B1

analogous

#B53177 #B53135 #B56F31

triadic

#B53135 #35B531 #3135B5

tetradic

#B53135 #77B531 #31B5B1 #6F31B5

square

#B53135 #77B531 #31B5B1 #6F31B5

split-complementary

#B53135 #31B56F #3177B5

monochromatic

#551719 #852427 #B53135 #D05357 #DD8386

Accessibility & contrast

On white

6.08

#B53135 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B53135 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53135

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53135	#FFFFFF	#000000	##FFFFFF
##B53135	1.00	6.08	3.46	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575034

Deuteranopia (green-blind)

#786D31

Tritanopia (blue-blind)

#C70034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b53135;
/* rgb */ color: rgb(181, 49, 53);
/* oklch */ color: oklch(51.7% 0.169 23.8);

Tailwind

colors: {
  custom: {
    50: '#d3736c',
    500: '#b53135',
    950: '#000000',
  },
}

SCSS

$custom: #b53135;
$custom-light: #d3736c;
$custom-dark: #000000;

JSON

{
  "hex": "#b53135",
  "rgb": {
    "r": 181,
    "g": 49,
    "b": 53
  },
  "hsl": {
    "h": 358.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51746,
    "c": 0.16851,
    "h": 23.8
  },
  "luminance": 0.12277
}

Semantic roles & 50–950 ramp

primary

#B53135

secondary

#7BC7C4

accent

#E1DC47

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53135

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

Preview Lab → · Contrast checker → · Palette generator →