#B53D3F#B53D3F

#B53D3F is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.156 H 23.2°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B53D3F
RGB	rgb(181, 61, 63)
HSL	hsl(359, 50%, 47%)
HSV	hsv(359, 66%, 71%)
CMYK	cmyk(0%, 66.3%, 65.2%, 29%)
CIE-LAB	lab(43.54, 48.59, 25.82)
CIE-LCH	lch(43.54, 55.03, 27.99°)
OKLab	oklab(53.2% 0.143 0.0612)
OKLCH	oklch(53.2% 0.156 23.2)
XYZ	xyz(21.6242, 13.5231, 6.1732)
Luminance	0.1352 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53D3F #3DB5B3

analogous

#B53D7B #B53D3F #B5773D

triadic

#B53D3F #3FB53D #3D3FB5

tetradic

#B53D3F #7BB53D #3DB5B3 #773DB5

square

#B53D3F #7BB53D #3DB5B3 #773DB5

split-complementary

#B53D3F #3DB577 #3D7BB5

monochromatic

#591E1F #872E2F #B53D3F #CB6466 #DA9293

Accessibility & contrast

On white

5.67

#B53D3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#B53D3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53D3F

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53D3F	#FFFFFF	#000000	##FFFFFF
##B53D3F	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573E

Deuteranopia (green-blind)

#7B703C

Tritanopia (blue-blind)

#C6203F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b53d3f;
/* rgb */ color: rgb(181, 61, 63);
/* oklch */ color: oklch(53.2% 0.156 23.2);

Tailwind

colors: {
  custom: {
    50: '#d27974',
    500: '#b53d3f',
    950: '#000000',
  },
}

SCSS

$custom: #b53d3f;
$custom-light: #d27974;
$custom-dark: #000000;

JSON

{
  "hex": "#b53d3f",
  "rgb": {
    "r": 181,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 359,
    "s": 49.587,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53202,
    "c": 0.15554,
    "h": 23.2
  },
  "luminance": 0.1352
}

Semantic roles & 50–950 ramp

primary

#B53D3F

secondary

#88C5C4

accent

#D9D74F

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53D3F

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

Preview Lab → · Contrast checker → · Palette generator →