#B4272A#B4272A

#B4272A is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.5% C 0.177 H 25.4°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#B4272A
RGB	rgb(180, 39, 42)
HSL	hsl(359, 64%, 43%)
HSV	hsv(359, 78%, 71%)
CMYK	cmyk(0%, 78.3%, 76.7%, 29.4%)
CIE-LAB	lab(40.12, 55.33, 34.25)
CIE-LCH	lch(40.12, 65.08, 31.76°)
OKLab	oklab(50.52% 0.16 0.076)
OKLCH	oklch(50.52% 0.177 25.4)
XYZ	xyz(19.9682, 11.3247, 3.3245)
Luminance	0.1132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4272A #27B4B1

analogous

#B42771 #B4272A #B46A27

triadic

#B4272A #2AB427 #272AB4

tetradic

#B4272A #71B427 #27B4B1 #6A27B4

square

#B4272A #71B427 #27B4B1 #6A27B4

split-complementary

#B4272A #27B46A #2771B4

monochromatic

#4F1113 #821C1E #B4272A #D64245 #E17477

Accessibility & contrast

On white

6.43

#B4272A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#B4272A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4272A

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4272A	#FFFFFF	#000000	##FFFFFF
##B4272A	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534B28

Deuteranopia (green-blind)

#766924

Tritanopia (blue-blind)

#C6002A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b4272a;
/* rgb */ color: rgb(180, 39, 42);
/* oklch */ color: oklch(50.5% 0.177 25.4);

Tailwind

colors: {
  custom: {
    50: '#d46e64',
    500: '#b4272a',
    950: '#000000',
  },
}

SCSS

$custom: #b4272a;
$custom-light: #d46e64;
$custom-dark: #000000;

JSON

{
  "hex": "#b4272a",
  "rgb": {
    "r": 180,
    "g": 39,
    "b": 42
  },
  "hsl": {
    "h": 358.723,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50521,
    "c": 0.1771,
    "h": 25.4
  },
  "luminance": 0.11322
}

Semantic roles & 50–950 ramp

primary

#B4272A

secondary

#6FC8C6

accent

#E7E440

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B4272A

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

Preview Lab → · Contrast checker → · Palette generator →