#B53C3F#B53C3F

#B53C3F is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.1% C 0.157 H 22.8°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B53C3F
RGB	rgb(181, 60, 63)
HSL	hsl(359, 50%, 47%)
HSV	hsv(359, 67%, 71%)
CMYK	cmyk(0%, 66.9%, 65.2%, 29%)
CIE-LAB	lab(43.39, 49.02, 25.63)
CIE-LCH	lch(43.39, 55.31, 27.60°)
OKLab	oklab(53.09% 0.1443 0.0608)
OKLCH	oklch(53.09% 0.157 22.8)
XYZ	xyz(21.5713, 13.4174, 6.1556)
Luminance	0.1341 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53C3F #3CB5B2

analogous

#B53C7C #B53C3F #B5753C

triadic

#B53C3F #3FB53C #3C3FB5

tetradic

#B53C3F #7CB53C #3CB5B2 #753CB5

square

#B53C3F #7CB53C #3CB5B2 #753CB5

split-complementary

#B53C3F #3CB575 #3C7CB5

monochromatic

#591E1F #872D2F #B53C3F #CB6366 #DB9193

Accessibility & contrast

On white

5.70

#B53C3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#B53C3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53C3F

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53C3F	#FFFFFF	#000000	##FFFFFF
##B53C3F	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563E

Deuteranopia (green-blind)

#7B703C

Tritanopia (blue-blind)

#C61E3E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53c3f;
/* rgb */ color: rgb(181, 60, 63);
/* oklch */ color: oklch(53.1% 0.157 22.8);

Tailwind

colors: {
  custom: {
    50: '#d27974',
    500: '#b53c3f',
    950: '#000000',
  },
}

SCSS

$custom: #b53c3f;
$custom-light: #d27974;
$custom-dark: #000000;

JSON

{
  "hex": "#b53c3f",
  "rgb": {
    "r": 181,
    "g": 60,
    "b": 63
  },
  "hsl": {
    "h": 358.512,
    "s": 50.207,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53086,
    "c": 0.1566,
    "h": 22.8
  },
  "luminance": 0.13414
}

Semantic roles & 50–950 ramp

primary

#B53C3F

secondary

#87C6C4

accent

#DAD64E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B53C3F

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

Preview Lab → · Contrast checker → · Palette generator →