#B1313F#B1313F

#B1313F is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.2% C 0.164 H 19.2°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#B1313F
RGB	rgb(177, 49, 63)
HSL	hsl(353, 57%, 44%)
HSV	hsv(353, 72%, 69%)
CMYK	cmyk(0%, 72.3%, 64.4%, 30.6%)
CIE-LAB	lab(41.07, 52.06, 22.54)
CIE-LCH	lch(41.07, 56.73, 23.41°)
OKLab	oklab(51.22% 0.1545 0.0539)
OKLCH	oklch(51.22% 0.164 19.2)
XYZ	xyz(20.1291, 11.9056, 5.9397)
Luminance	0.1190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1313F #31B1A3

analogous

#B1317F #B1313F #B16331

triadic

#B1313F #3FB131 #313FB1

tetradic

#B1313F #7FB131 #31B1A3 #6331B1

square

#B1313F #7FB131 #31B1A3 #6331B1

split-complementary

#B1313F #31B163 #317FB1

monochromatic

#51161D #81242E #B1313F #CF515E #DC808A

Accessibility & contrast

On white

6.21

#B1313F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B1313F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1313F

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1313F	#FFFFFF	#000000	##FFFFFF
##B1313F	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54503F

Deuteranopia (green-blind)

#756B3B

Tritanopia (blue-blind)

#C20537

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b1313f;
/* rgb */ color: rgb(177, 49, 63);
/* oklch */ color: oklch(51.2% 0.164 19.2);

Tailwind

colors: {
  custom: {
    50: '#cf7374',
    500: '#b1313f',
    950: '#000000',
  },
}

SCSS

$custom: #b1313f;
$custom-light: #cf7374;
$custom-dark: #000000;

JSON

{
  "hex": "#b1313f",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 63
  },
  "hsl": {
    "h": 353.438,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51219,
    "c": 0.16365,
    "h": 19.2
  },
  "luminance": 0.11903
}

Semantic roles & 50–950 ramp

primary

#B1313F

secondary

#79C5BD

accent

#E0CF48

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B1313F

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

Preview Lab → · Contrast checker → · Palette generator →