#B1231E#B1231E

#B1231E is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.5% C 0.179 H 28.1°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#B1231E
RGB	rgb(177, 35, 30)
HSL	hsl(2, 71%, 41%)
HSV	hsv(2, 83%, 69%)
CMYK	cmyk(0%, 80.2%, 83.1%, 30.6%)
CIE-LAB	lab(38.98, 55.22, 39.63)
CIE-LCH	lch(38.98, 67.97, 35.67°)
OKLab	oklab(49.53% 0.1575 0.084)
OKLCH	oklch(49.53% 0.179 28.1)
XYZ	xyz(18.9692, 10.6460, 2.2841)
Luminance	0.1064 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1231E #1EACB1

analogous

#B11E62 #B1231E #B16C1E

triadic

#B1231E #1EB123 #231EB1

tetradic

#B1231E #62B11E #1EACB1 #6C1EB1

square

#B1231E #62B11E #1EACB1 #6C1EB1

split-complementary

#B1231E #1EB16C #1E62B1

monochromatic

#480E0C #7D1915 #B1231E #DC3630 #E56965

Accessibility & contrast

On white

6.71

#B1231E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#B1231E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1231E

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1231E	#FFFFFF	#000000	##FFFFFF
##B1231E	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51481B

Deuteranopia (green-blind)

#736716

Tritanopia (blue-blind)

#C30024

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b1231e;
/* rgb */ color: rgb(177, 35, 30);
/* oklch */ color: oklch(49.5% 0.179 28.1);

Tailwind

colors: {
  custom: {
    50: '#d26c5b',
    500: '#b1231e',
    950: '#000000',
  },
}

SCSS

$custom: #b1231e;
$custom-light: #d26c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b1231e",
  "rgb": {
    "r": 177,
    "g": 35,
    "b": 30
  },
  "hsl": {
    "h": 2.041,
    "s": 71.014,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49525,
    "c": 0.17852,
    "h": 28.1
  },
  "luminance": 0.10643
}

Semantic roles & 50–950 ramp

primary

#B1231E

secondary

#61C6CA

accent

#E8EE3A

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B1231E

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

Preview Lab → · Contrast checker → · Palette generator →