#B41F1F#B41F1F

#B41F1F is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.184 H 27.2°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#B41F1F
RGB	rgb(180, 31, 31)
HSL	hsl(0, 71%, 41%)
HSV	hsv(0, 83%, 71%)
CMYK	cmyk(0%, 82.8%, 82.8%, 29.4%)
CIE-LAB	lab(39.22, 57.21, 39.53)
CIE-LCH	lch(39.22, 69.54, 34.65°)
OKLab	oklab(49.81% 0.1636 0.0839)
OKLCH	oklch(49.81% 0.184 27.2)
XYZ	xyz(19.5622, 10.7854, 2.3479)
Luminance	0.1078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41F1F #1FB4B4

analogous

#B41F6A #B41F1F #B46A1F

triadic

#B41F1F #1FB41F #1F1FB4

tetradic

#B41F1F #6AB41F #1FB4B4 #6A1FB4

square

#B41F1F #6AB41F #1FB4B4 #6A1FB4

split-complementary

#B41F1F #1FB46A #1F6AB4

monochromatic

#4C0D0D #801616 #B41F1F #DC3434 #E56868

Accessibility & contrast

On white

6.65

#B41F1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#B41F1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41F1F

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41F1F	#FFFFFF	#000000	##FFFFFF
##B41F1F	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50481D

Deuteranopia (green-blind)

#756817

Tritanopia (blue-blind)

#C70022

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b41f1f;
/* rgb */ color: rgb(180, 31, 31);
/* oklch */ color: oklch(49.8% 0.184 27.2);

Tailwind

colors: {
  custom: {
    50: '#d46b5c',
    500: '#b41f1f',
    950: '#000000',
  },
}

SCSS

$custom: #b41f1f;
$custom-light: #d46b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#b41f1f",
  "rgb": {
    "r": 180,
    "g": 31,
    "b": 31
  },
  "hsl": {
    "h": 0,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.49813,
    "c": 0.18385,
    "h": 27.2
  },
  "luminance": 0.10782
}

Semantic roles & 50–950 ramp

primary

#B41F1F

secondary

#64CBCB

accent

#EDED3A

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B41F1F

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

Preview Lab → · Contrast checker → · Palette generator →