#B3281A#B3281A

#B3281A is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.177 H 30.1°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#B3281A
RGB	rgb(179, 40, 26)
HSL	hsl(5, 75%, 40%)
HSV	hsv(5, 85%, 70%)
CMYK	cmyk(0%, 77.7%, 85.5%, 29.8%)
CIE-LAB	lab(39.88, 54.22, 42.66)
CIE-LCH	lch(39.88, 68.99, 38.19°)
OKLab	oklab(50.26% 0.1534 0.089)
OKLCH	oklch(50.26% 0.177 30.1)
XYZ	xyz(19.5381, 11.1790, 2.1061)
Luminance	0.1118 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3281A #1AA5B3

analogous

#B31A59 #B3281A #B3741A

triadic

#B3281A #1AB328 #281AB3

tetradic

#B3281A #59B31A #1AA5B3 #741AB3

square

#B3281A #59B31A #1AA5B3 #741AB3

split-complementary

#B3281A #1AB374 #1A59B3

monochromatic

#48100A #7E1C12 #B3281A #E03B2A #E86C60

Accessibility & contrast

On white

6.49

#B3281A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#B3281A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3281A

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3281A	#FFFFFF	#000000	##FFFFFF
##B3281A	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A16

Deuteranopia (green-blind)

#766911

Tritanopia (blue-blind)

#C60027

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3281a;
/* rgb */ color: rgb(179, 40, 26);
/* oklch */ color: oklch(50.3% 0.177 30.1);

Tailwind

colors: {
  custom: {
    50: '#d46e59',
    500: '#b3281a',
    950: '#000000',
  },
}

SCSS

$custom: #b3281a;
$custom-light: #d46e59;
$custom-dark: #000000;

JSON

{
  "hex": "#b3281a",
  "rgb": {
    "r": 179,
    "g": 40,
    "b": 26
  },
  "hsl": {
    "h": 5.49,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50258,
    "c": 0.17736,
    "h": 30.1
  },
  "luminance": 0.11176
}

Semantic roles & 50–950 ramp

primary

#B3281A

secondary

#5DC2CC

accent

#E0F137

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3281A

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

Preview Lab → · Contrast checker → · Palette generator →