#B41B18#B41B18

#B41B18 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.5% C 0.187 H 28.2°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#B41B18
RGB	rgb(180, 27, 24)
HSL	hsl(1, 76%, 40%)
HSV	hsv(1, 87%, 71%)
CMYK	cmyk(0%, 85%, 86.7%, 29.4%)
CIE-LAB	lab(38.82, 57.99, 42.82)
CIE-LCH	lch(38.82, 72.09, 36.44°)
OKLab	oklab(49.5% 0.1648 0.0883)
OKLCH	oklch(49.5% 0.187 28.2)
XYZ	xyz(19.3817, 10.5564, 1.8811)
Luminance	0.1055 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B41B18 #18B1B4

analogous

#B41863 #B41B18 #B46918

triadic

#B41B18 #18B41B #1B18B4

tetradic

#B41B18 #63B418 #18B1B4 #6918B4

square

#B41B18 #63B418 #18B1B4 #6918B4

split-complementary

#B41B18 #18B469 #1863B4

monochromatic

#480B0A #7E1311 #B41B18 #E22B27 #E9605D

Accessibility & contrast

On white

6.75

#B41B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#B41B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B41B18

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B41B18	#FFFFFF	#000000	##FFFFFF
##B41B18	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4615

Deuteranopia (green-blind)

#74670D

Tritanopia (blue-blind)

#C7001D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b41b18;
/* rgb */ color: rgb(180, 27, 24);
/* oklch */ color: oklch(49.5% 0.187 28.2);

Tailwind

colors: {
  custom: {
    50: '#d56a57',
    500: '#b41b18',
    950: '#000000',
  },
}

SCSS

$custom: #b41b18;
$custom-light: #d56a57;
$custom-dark: #000000;

JSON

{
  "hex": "#b41b18",
  "rgb": {
    "r": 180,
    "g": 27,
    "b": 24
  },
  "hsl": {
    "h": 1.154,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.49503,
    "c": 0.18692,
    "h": 28.2
  },
  "luminance": 0.10553
}

Semantic roles & 50–950 ramp

primary

#B41B18

secondary

#5BCBCD

accent

#EFF335

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#170703

muted

#857A78

Preview Lab

Preview with #B41B18

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

Preview Lab → · Contrast checker → · Palette generator →