#B43011#B43011

#B43011 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.173 H 33.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#B43011
RGB	rgb(180, 48, 17)
HSL	hsl(11, 83%, 39%)
HSV	hsv(11, 91%, 71%)
CMYK	cmyk(0%, 73.3%, 90.6%, 29.4%)
CIE-LAB	lab(40.99, 51.65, 47.63)
CIE-LCH	lch(40.99, 70.25, 42.68°)
OKLab	oklab(51.11% 0.144 0.0964)
OKLCH	oklch(51.11% 0.173 33.8)
XYZ	xyz(19.9830, 11.8608, 1.7674)
Luminance	0.1186 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43011 #1195B4

analogous

#B41143 #B43011 #B48111

triadic

#B43011 #11B430 #3011B4

tetradic

#B43011 #43B411 #1195B4 #8111B4

square

#B43011 #43B411 #1195B4 #8111B4

split-complementary

#B43011 #11B481 #1143B4

monochromatic

#441206 #7C210C #B43011 #E94119 #EF6F51

Accessibility & contrast

On white

6.23

#B43011 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B43011 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43011

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43011	#FFFFFF	#000000	##FFFFFF
##B43011	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594E09

Deuteranopia (green-blind)

#796B04

Tritanopia (blue-blind)

#C7002B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b43011;
/* rgb */ color: rgb(180, 48, 17);
/* oklch */ color: oklch(51.1% 0.173 33.8);

Tailwind

colors: {
  custom: {
    50: '#d57255',
    500: '#b43011',
    950: '#000000',
  },
}

SCSS

$custom: #b43011;
$custom-light: #d57255;
$custom-dark: #000000;

JSON

{
  "hex": "#b43011",
  "rgb": {
    "r": 180,
    "g": 48,
    "b": 17
  },
  "hsl": {
    "h": 11.411,
    "s": 82.741,
    "l": 38.627
  },
  "oklch": {
    "l": 0.51106,
    "c": 0.17331,
    "h": 33.8
  },
  "luminance": 0.11858
}

Semantic roles & 50–950 ramp

primary

#B43011

secondary

#50B8D0

accent

#D3F92F

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B43011

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

Preview Lab → · Contrast checker → · Palette generator →