#B31514#B31514

#B31514 is a mid, vivid red. Relative luminance 0.102; OKLCH L 49.0% C 0.189 H 28.2°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#B31514
RGB	rgb(179, 21, 20)
HSL	hsl(0, 80%, 39%)
HSV	hsv(0, 89%, 70%)
CMYK	cmyk(0%, 88.3%, 88.8%, 29.8%)
CIE-LAB	lab(38.15, 58.87, 44.12)
CIE-LCH	lch(38.15, 73.57, 36.85°)
OKLab	oklab(48.96% 0.167 0.0895)
OKLCH	oklch(48.96% 0.189 28.2)
XYZ	xyz(18.9873, 10.1738, 1.6257)
Luminance	0.1017 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31514 #14B2B3

analogous

#B31463 #B31514 #B36514

triadic

#B31514 #14B315 #1514B3

tetradic

#B31514 #63B314 #14B2B3 #6514B3

square

#B31514 #63B314 #14B2B3 #6514B3

split-complementary

#B31514 #14B365 #1463B3

monochromatic

#450808 #7C0F0E #B31514 #E6201E #EC5655

Accessibility & contrast

On white

6.92

#B31514 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#B31514 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31514

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31514	#FFFFFF	#000000	##FFFFFF
##B31514	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4410

Deuteranopia (green-blind)

#736606

Tritanopia (blue-blind)

#C60019

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #b31514;
/* rgb */ color: rgb(179, 21, 20);
/* oklch */ color: oklch(49.0% 0.189 28.2);

Tailwind

colors: {
  custom: {
    50: '#d56855',
    500: '#b31514',
    950: '#000000',
  },
}

SCSS

$custom: #b31514;
$custom-light: #d56855;
$custom-dark: #000000;

JSON

{
  "hex": "#b31514",
  "rgb": {
    "r": 179,
    "g": 21,
    "b": 20
  },
  "hsl": {
    "h": 0.377,
    "s": 79.899,
    "l": 39.02
  },
  "oklch": {
    "l": 0.48962,
    "c": 0.18942,
    "h": 28.2
  },
  "luminance": 0.10171
}

Semantic roles & 50–950 ramp

primary

#B31514

secondary

#54CECF

accent

#F5F631

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#170703

muted

#857A78

Preview Lab

Preview with #B31514

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

Preview Lab → · Contrast checker → · Palette generator →