#B5314B#B5314B

#B5314B is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.2% C 0.168 H 14.1°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#B5314B
RGB	rgb(181, 49, 75)
HSL	hsl(348, 57%, 45%)
HSV	hsv(348, 73%, 71%)
CMYK	cmyk(0%, 72.9%, 58.6%, 29%)
CIE-LAB	lab(42.05, 54.09, 16.51)
CIE-LCH	lch(42.05, 56.56, 16.97°)
OKLab	oklab(52.16% 0.1627 0.0408)
OKLCH	oklch(52.16% 0.168 14.1)
XYZ	xyz(21.4265, 12.5314, 7.9458)
Luminance	0.1253 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5314B #31B59B

analogous

#B5318D #B5314B #B55931

triadic

#B5314B #4BB531 #314BB5

tetradic

#B5314B #8DB531 #31B59B #5931B5

square

#B5314B #8DB531 #31B59B #5931B5

split-complementary

#B5314B #31B559 #318DB5

monochromatic

#551723 #852437 #B5314B #D0536C #DD8395

Accessibility & contrast

On white

5.99

#B5314B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B5314B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5314B

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5314B	#FFFFFF	#000000	##FFFFFF
##B5314B	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54524B

Deuteranopia (green-blind)

#766D48

Tritanopia (blue-blind)

#C6093C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b5314b;
/* rgb */ color: rgb(181, 49, 75);
/* oklch */ color: oklch(52.2% 0.168 14.1);

Tailwind

colors: {
  custom: {
    50: '#d2737d',
    500: '#b5314b',
    950: '#000000',
  },
}

SCSS

$custom: #b5314b;
$custom-light: #d2737d;
$custom-dark: #000000;

JSON

{
  "hex": "#b5314b",
  "rgb": {
    "r": 181,
    "g": 49,
    "b": 75
  },
  "hsl": {
    "h": 348.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52162,
    "c": 0.16778,
    "h": 14.1
  },
  "luminance": 0.12528
}

Semantic roles & 50–950 ramp

primary

#B5314B

secondary

#7BC7B8

accent

#E1C247

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B5314B

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

Preview Lab → · Contrast checker → · Palette generator →