#B3281D#B3281D

#B3281D is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.177 H 29.4°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#B3281D
RGB	rgb(179, 40, 29)
HSL	hsl(4, 72%, 41%)
HSV	hsv(4, 84%, 70%)
CMYK	cmyk(0%, 77.7%, 83.8%, 29.8%)
CIE-LAB	lab(39.90, 54.30, 41.16)
CIE-LCH	lch(39.90, 68.14, 37.17°)
OKLab	oklab(50.28% 0.1542 0.0869)
OKLCH	oklch(50.28% 0.177 29.4)
XYZ	xyz(19.5734, 11.1932, 2.2920)
Luminance	0.1119 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3281D #1DA8B3

analogous

#B31D5D #B3281D #B3731D

triadic

#B3281D #1DB328 #281DB3

tetradic

#B3281D #5DB31D #1DA8B3 #731DB3

square

#B3281D #5DB31D #1DA8B3 #731DB3

split-complementary

#B3281D #1DB373 #1D5DB3

monochromatic

#4A100C #7E1C14 #B3281D #DD3D30 #E66E64

Accessibility & contrast

On white

6.49

#B3281D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#B3281D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3281D

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3281D	#FFFFFF	#000000	##FFFFFF
##B3281D	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)

#544B1A

Deuteranopia (green-blind)

#766915

Tritanopia (blue-blind)

#C60027

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3281d;
/* rgb */ color: rgb(179, 40, 29);
/* oklch */ color: oklch(50.3% 0.177 29.4);

Tailwind

colors: {
  custom: {
    50: '#d46e5b',
    500: '#b3281d',
    950: '#000000',
  },
}

SCSS

$custom: #b3281d;
$custom-light: #d46e5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b3281d",
  "rgb": {
    "r": 179,
    "g": 40,
    "b": 29
  },
  "hsl": {
    "h": 4.4,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50283,
    "c": 0.17698,
    "h": 29.4
  },
  "luminance": 0.1119
}

Semantic roles & 50–950 ramp

primary

#B3281D

secondary

#61C3CB

accent

#E1EF39

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3281D

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

Preview Lab → · Contrast checker → · Palette generator →