#B4423F#B4423F

#B4423F is a mid, vivid red. Relative luminance 0.140; OKLCH L 53.6% C 0.149 H 25.0°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#B4423F
RGB	rgb(180, 66, 63)
HSL	hsl(2, 48%, 48%)
HSV	hsv(2, 65%, 71%)
CMYK	cmyk(0%, 63.3%, 65%, 29.4%)
CIE-LAB	lab(44.18, 46.06, 26.58)
CIE-LCH	lch(44.18, 53.18, 29.99°)
OKLab	oklab(53.65% 0.1351 0.063)
OKLCH	oklch(53.65% 0.149 25)
XYZ	xyz(21.6699, 13.9616, 6.2554)
Luminance	0.1396 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4423F #3FB1B4

analogous

#B43F77 #B4423F #B47C3F

triadic

#B4423F #3FB442 #423FB4

tetradic

#B4423F #77B43F #3FB1B4 #7C3FB4

square

#B4423F #77B43F #3FB1B4 #7C3FB4

split-complementary

#B4423F #3FB47C #3F77B4

monochromatic

#59211F #87312F #B4423F #CA6967 #DA9694

Accessibility & contrast

On white

5.54

#B4423F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#B4423F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4423F

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4423F	#FFFFFF	#000000	##FFFFFF
##B4423F	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60593E

Deuteranopia (green-blind)

#7C723C

Tritanopia (blue-blind)

#C52942

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b4423f;
/* rgb */ color: rgb(180, 66, 63);
/* oklch */ color: oklch(53.6% 0.149 25.0);

Tailwind

colors: {
  custom: {
    50: '#d17c74',
    500: '#b4423f',
    950: '#000000',
  },
}

SCSS

$custom: #b4423f;
$custom-light: #d17c74;
$custom-dark: #000000;

JSON

{
  "hex": "#b4423f",
  "rgb": {
    "r": 180,
    "g": 66,
    "b": 63
  },
  "hsl": {
    "h": 1.538,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53647,
    "c": 0.14907,
    "h": 25
  },
  "luminance": 0.13959
}

Semantic roles & 50–950 ramp

primary

#B4423F

secondary

#8AC3C5

accent

#D4D850

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B4423F

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

Preview Lab → · Contrast checker → · Palette generator →