#B8313F#B8313F

#B8313F is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.4% C 0.171 H 19.9°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B8313F
RGB	rgb(184, 49, 63)
HSL	hsl(354, 58%, 46%)
HSV	hsv(354, 73%, 72%)
CMYK	cmyk(0%, 73.4%, 65.8%, 27.8%)
CIE-LAB	lab(42.38, 54.25, 24.48)
CIE-LCH	lch(42.38, 59.52, 24.29°)
OKLab	oklab(52.44% 0.1606 0.0581)
OKLCH	oklch(52.44% 0.171 19.9)
XYZ	xyz(21.7650, 12.7491, 6.0164)
Luminance	0.1275 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8313F #31B8AA

analogous

#B83182 #B8313F #B86631

triadic

#B8313F #3FB831 #313FB8

tetradic

#B8313F #82B831 #31B8AA #6631B8

square

#B8313F #82B831 #31B8AA #6631B8

split-complementary

#B8313F #31B866 #3182B8

monochromatic

#57171E #88242E #B8313F #D25562 #DE858E

Accessibility & contrast

On white

5.92

#B8313F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B8313F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8313F

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8313F	#FFFFFF	#000000	##FFFFFF
##B8313F	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523F

Deuteranopia (green-blind)

#796E3B

Tritanopia (blue-blind)

#CA0037

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b8313f;
/* rgb */ color: rgb(184, 49, 63);
/* oklch */ color: oklch(52.4% 0.171 19.9);

Tailwind

colors: {
  custom: {
    50: '#d57474',
    500: '#b8313f',
    950: '#000000',
  },
}

SCSS

$custom: #b8313f;
$custom-light: #d57474;
$custom-dark: #000000;

JSON

{
  "hex": "#b8313f",
  "rgb": {
    "r": 184,
    "g": 49,
    "b": 63
  },
  "hsl": {
    "h": 353.778,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52439,
    "c": 0.17077,
    "h": 19.9
  },
  "luminance": 0.12746
}

Semantic roles & 50–950 ramp

primary

#B8313F

secondary

#7DC8C0

accent

#E1D147

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160908

muted

#847B7B

Preview Lab

Preview with #B8313F

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

Preview Lab → · Contrast checker → · Palette generator →