#B41F1B#B41F1B

#B41F1B is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.184 H 28.1°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#B41F1B
RGB	rgb(180, 31, 27)
HSL	hsl(2, 74%, 41%)
HSV	hsv(2, 85%, 71%)
CMYK	cmyk(0%, 82.8%, 85%, 29.4%)
CIE-LAB	lab(39.18, 57.10, 41.62)
CIE-LCH	lch(39.18, 70.66, 36.08°)
OKLab	oklab(49.78% 0.1625 0.0869)
OKLCH	oklch(49.78% 0.184 28.1)
XYZ	xyz(19.5127, 10.7656, 2.0873)
Luminance	0.1076 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41F1B #1BB0B4

analogous

#B41B63 #B41F1B #B46C1B

triadic

#B41F1B #1BB41F #1F1BB4

tetradic

#B41F1B #63B41B #1BB0B4 #6C1BB4

square

#B41F1B #63B41B #1BB0B4 #6C1BB4

split-complementary

#B41F1B #1BB46C #1B63B4

monochromatic

#4A0D0B #7F1613 #B41F1B #DF312D #E76562

Accessibility & contrast

On white

6.66

#B41F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B41F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41F1B

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41F1B	#FFFFFF	#000000	##FFFFFF
##B41F1B	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514818

Deuteranopia (green-blind)

#756811

Tritanopia (blue-blind)

#C70021

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b41f1b;
/* rgb */ color: rgb(180, 31, 27);
/* oklch */ color: oklch(49.8% 0.184 28.1);

Tailwind

colors: {
  custom: {
    50: '#d56b59',
    500: '#b41f1b',
    950: '#000000',
  },
}

SCSS

$custom: #b41f1b;
$custom-light: #d56b59;
$custom-dark: #000000;

JSON

{
  "hex": "#b41f1b",
  "rgb": {
    "r": 180,
    "g": 31,
    "b": 27
  },
  "hsl": {
    "h": 1.569,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49777,
    "c": 0.18429,
    "h": 28.1
  },
  "luminance": 0.10762
}

Semantic roles & 50–950 ramp

primary

#B41F1B

secondary

#5FC9CC

accent

#ECF137

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B41F1B

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

Preview Lab → · Contrast checker → · Palette generator →