#B43D21#B43D21

#B43D21 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.6% C 0.160 H 34.4°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B43D21
RGB	rgb(180, 61, 33)
HSL	hsl(11, 69%, 42%)
HSV	hsv(11, 82%, 71%)
CMYK	cmyk(0%, 66.1%, 81.7%, 29.4%)
CIE-LAB	lab(42.99, 46.87, 42.10)
CIE-LCH	lch(42.99, 63.00, 41.93°)
OKLab	oklab(52.64% 0.1317 0.0903)
OKLCH	oklch(52.64% 0.16 34.4)
XYZ	xyz(20.7680, 13.1537, 2.8839)
Luminance	0.1315 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43D21 #2198B4

analogous

#B4214E #B43D21 #B48721

triadic

#B43D21 #21B43D #3D21B4

tetradic

#B43D21 #4EB421 #2198B4 #8721B4

square

#B43D21 #4EB421 #2198B4 #8721B4

split-complementary

#B43D21 #21B487 #214EB4

monochromatic

#4D1A0E #802B18 #B43D21 #DA5738 #E4826B

Accessibility & contrast

On white

5.78

#B43D21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B43D21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43D21

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43D21	#FFFFFF	#000000	##FFFFFF
##B43D21	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F551D

Deuteranopia (green-blind)

#7D6F1C

Tritanopia (blue-blind)

#C61938

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43d21;
/* rgb */ color: rgb(180, 61, 33);
/* oklch */ color: oklch(52.6% 0.160 34.4);

Tailwind

colors: {
  custom: {
    50: '#d3785f',
    500: '#b43d21',
    950: '#000000',
  },
}

SCSS

$custom: #b43d21;
$custom-light: #d3785f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43d21",
  "rgb": {
    "r": 180,
    "g": 61,
    "b": 33
  },
  "hsl": {
    "h": 11.429,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.5264,
    "c": 0.15972,
    "h": 34.4
  },
  "luminance": 0.13151
}

Semantic roles & 50–950 ramp

primary

#B43D21

secondary

#67B7CA

accent

#CAEC3C

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B43D21

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

Preview Lab → · Contrast checker → · Palette generator →