#B43C21#B43C21

#B43C21 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.161 H 34.1°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B43C21
RGB	rgb(180, 60, 33)
HSL	hsl(11, 69%, 42%)
HSV	hsv(11, 82%, 71%)
CMYK	cmyk(0%, 66.7%, 81.7%, 29.4%)
CIE-LAB	lab(42.84, 47.30, 41.94)
CIE-LCH	lch(42.84, 63.22, 41.57°)
OKLab	oklab(52.52% 0.1331 0.09)
OKLCH	oklch(52.52% 0.161 34.1)
XYZ	xyz(20.7151, 13.0479, 2.8663)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43C21 #2199B4

analogous

#B42150 #B43C21 #B48521

triadic

#B43C21 #21B43C #3C21B4

tetradic

#B43C21 #50B421 #2199B4 #8521B4

square

#B43C21 #50B421 #2199B4 #8521B4

split-complementary

#B43C21 #21B485 #2150B4

monochromatic

#4D1A0E #802B18 #B43C21 #DA5638 #E4826B

Accessibility & contrast

On white

5.82

#B43C21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B43C21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43C21

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43C21	#FFFFFF	#000000	##FFFFFF
##B43C21	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F541D

Deuteranopia (green-blind)

#7C6F1B

Tritanopia (blue-blind)

#C61737

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b43c21;
/* rgb */ color: rgb(180, 60, 33);
/* oklch */ color: oklch(52.5% 0.161 34.1);

Tailwind

colors: {
  custom: {
    50: '#d3785f',
    500: '#b43c21',
    950: '#000000',
  },
}

SCSS

$custom: #b43c21;
$custom-light: #d3785f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43c21",
  "rgb": {
    "r": 180,
    "g": 60,
    "b": 33
  },
  "hsl": {
    "h": 11.02,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.52521,
    "c": 0.16062,
    "h": 34.1
  },
  "luminance": 0.13045
}

Semantic roles & 50–950 ramp

primary

#B43C21

secondary

#67B8CA

accent

#CCEC3C

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B43C21

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

Preview Lab → · Contrast checker → · Palette generator →