#B41B3F#B41B3F

#B41B3F is a mid, vivid red. Relative luminance 0.108; OKLCH L 50.0% C 0.185 H 15.4°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B41B3F
RGB	rgb(180, 27, 63)
HSL	hsl(346, 74%, 41%)
HSV	hsv(346, 85%, 71%)
CMYK	cmyk(0%, 85%, 65%, 29.4%)
CIE-LAB	lab(39.33, 59.49, 20.41)
CIE-LCH	lch(39.33, 62.89, 18.94°)
OKLab	oklab(50.04% 0.178 0.049)
OKLCH	oklch(50.04% 0.185 15.4)
XYZ	xyz(20.1138, 10.8492, 5.7367)
Luminance	0.1085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41B3F #1BB490

analogous

#B41B8C #B41B3F #B4431B

triadic

#B41B3F #3FB41B #1B3FB4

tetradic

#B41B3F #8CB41B #1BB490 #431BB4

square

#B41B3F #8CB41B #1BB490 #431BB4

split-complementary

#B41B3F #1BB443 #1B8CB4

monochromatic

#4A0B1A #7F132C #B41B3F #DF2D57 #E76281

Accessibility & contrast

On white

6.63

#B41B3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B41B3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41B3F

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41B3F	#FFFFFF	#000000	##FFFFFF
##B41B3F	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B493F

Deuteranopia (green-blind)

#71683B

Tritanopia (blue-blind)

#C6002C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b41b3f;
/* rgb */ color: rgb(180, 27, 63);
/* oklch */ color: oklch(50.0% 0.185 15.4);

Tailwind

colors: {
  custom: {
    50: '#d26b73',
    500: '#b41b3f',
    950: '#000000',
  },
}

SCSS

$custom: #b41b3f;
$custom-light: #d26b73;
$custom-dark: #000000;

JSON

{
  "hex": "#b41b3f",
  "rgb": {
    "r": 180,
    "g": 27,
    "b": 63
  },
  "hsl": {
    "h": 345.882,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50035,
    "c": 0.18457,
    "h": 15.4
  },
  "luminance": 0.10846
}

Semantic roles & 50–950 ramp

primary

#B41B3F

secondary

#5FCCB2

accent

#F1C537

background

#FEF6F6

surface

#FCECEC

border

#D5C7C7

text

#160808

muted

#847A7B

Preview Lab

Preview with #B41B3F

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

Preview Lab → · Contrast checker → · Palette generator →