#B43F21#B43F21

#B43F21 is a mid, vivid red. Relative luminance 0.134; OKLCH L 52.9% C 0.158 H 35.2°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B43F21
RGB	rgb(180, 63, 33)
HSL	hsl(12, 69%, 42%)
HSV	hsv(12, 82%, 71%)
CMYK	cmyk(0%, 65%, 81.7%, 29.4%)
CIE-LAB	lab(43.32, 46.00, 42.41)
CIE-LCH	lch(43.32, 62.56, 42.67°)
OKLab	oklab(52.88% 0.129 0.091)
OKLCH	oklch(52.88% 0.158 35.2)
XYZ	xyz(20.8768, 13.3712, 2.9202)
Luminance	0.1337 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43F21 #2196B4

analogous

#B4214D #B43F21 #B48921

triadic

#B43F21 #21B43F #3F21B4

tetradic

#B43F21 #4DB421 #2196B4 #8921B4

square

#B43F21 #4DB421 #2196B4 #8921B4

split-complementary

#B43F21 #21B489 #214DB4

monochromatic

#4D1B0E #802D18 #B43F21 #DA5938 #E4846B

Accessibility & contrast

On white

5.72

#B43F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B43F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43F21

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43F21	#FFFFFF	#000000	##FFFFFF
##B43F21	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61561C

Deuteranopia (green-blind)

#7E701C

Tritanopia (blue-blind)

#C61E39

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b43f21;
/* rgb */ color: rgb(180, 63, 33);
/* oklch */ color: oklch(52.9% 0.158 35.2);

Tailwind

colors: {
  custom: {
    50: '#d37a5f',
    500: '#b43f21',
    950: '#000000',
  },
}

SCSS

$custom: #b43f21;
$custom-light: #d37a5f;
$custom-dark: #000000;

JSON

{
  "hex": "#b43f21",
  "rgb": {
    "r": 180,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 12.245,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.52883,
    "c": 0.1579,
    "h": 35.2
  },
  "luminance": 0.13368
}

Semantic roles & 50–950 ramp

primary

#B43F21

secondary

#67B6CA

accent

#C8EC3C

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160905

muted

#847B79

Preview Lab

Preview with #B43F21

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

Preview Lab → · Contrast checker → · Palette generator →