#B1312F#B1312F

#B1312F is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.165 H 26.0°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#B1312F
RGB	rgb(177, 49, 47)
HSL	hsl(1, 58%, 44%)
HSV	hsv(1, 73%, 69%)
CMYK	cmyk(0%, 72.3%, 73.4%, 30.6%)
CIE-LAB	lab(40.82, 51.22, 31.94)
CIE-LCH	lch(40.82, 60.36, 31.95°)
OKLab	oklab(50.96% 0.1484 0.0723)
OKLCH	oklch(50.96% 0.165 26)
XYZ	xyz(19.7451, 11.7520, 3.9174)
Luminance	0.1175 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1312F #2FAFB1

analogous

#B12F6E #B1312F #B1722F

triadic

#B1312F #2FB131 #312FB1

tetradic

#B1312F #6EB12F #2FAFB1 #722FB1

square

#B1312F #6EB12F #2FAFB1 #722FB1

split-complementary

#B1312F #2FB172 #2F6EB1

monochromatic

#501615 #812422 #B1312F #D04F4D #DD7F7E

Accessibility & contrast

On white

6.27

#B1312F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#B1312F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1312F

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1312F	#FFFFFF	#000000	##FFFFFF
##B1312F	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F2D

Deuteranopia (green-blind)

#766A2B

Tritanopia (blue-blind)

#C30032

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b1312f;
/* rgb */ color: rgb(177, 49, 47);
/* oklch */ color: oklch(51.0% 0.165 26.0);

Tailwind

colors: {
  custom: {
    50: '#d07268',
    500: '#b1312f',
    950: '#000000',
  },
}

SCSS

$custom: #b1312f;
$custom-light: #d07268;
$custom-dark: #000000;

JSON

{
  "hex": "#b1312f",
  "rgb": {
    "r": 177,
    "g": 49,
    "b": 47
  },
  "hsl": {
    "h": 0.923,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50956,
    "c": 0.16512,
    "h": 26
  },
  "luminance": 0.11749
}

Semantic roles & 50–950 ramp

primary

#B1312F

secondary

#76C4C5

accent

#DFE147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #B1312F

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

Preview Lab → · Contrast checker → · Palette generator →