#A7281B#A7281B

#A7281B is a mid, vivid red. Relative luminance 0.098; OKLCH L 48.1% C 0.165 H 30.0°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#A7281B
RGB	rgb(167, 40, 27)
HSL	hsl(6, 72%, 38%)
HSV	hsv(6, 84%, 65%)
CMYK	cmyk(0%, 76%, 83.8%, 34.5%)
CIE-LAB	lab(37.51, 50.49, 39.12)
CIE-LCH	lch(37.51, 63.88, 37.77°)
OKLab	oklab(48.07% 0.1432 0.0828)
OKLCH	oklch(48.07% 0.165 30)
XYZ	xyz(16.8950, 9.8149, 2.0416)
Luminance	0.0981 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7281B #1B9AA7

analogous

#A71B54 #A7281B #A76E1B

triadic

#A7281B #1BA728 #281BA7

tetradic

#A7281B #54A71B #1B9AA7 #6E1BA7

square

#A7281B #54A71B #1B9AA7 #6E1BA7

split-complementary

#A7281B #1BA76E #1B54A7

monochromatic

#3E0F0A #721B12 #A7281B #DC3524 #E46558

Accessibility & contrast

On white

7.09

#A7281B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#A7281B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7281B

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7281B	#FFFFFF	#000000	##FFFFFF
##A7281B	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4618

Deuteranopia (green-blind)

#6F6214

Tritanopia (blue-blind)

#B80026

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a7281b;
/* rgb */ color: rgb(167, 40, 27);
/* oklch */ color: oklch(48.1% 0.165 30.0);

Tailwind

colors: {
  custom: {
    50: '#ca6c59',
    500: '#a7281b',
    950: '#000000',
  },
}

SCSS

$custom: #a7281b;
$custom-light: #ca6c59;
$custom-dark: #000000;

JSON

{
  "hex": "#a7281b",
  "rgb": {
    "r": 167,
    "g": 40,
    "b": 27
  },
  "hsl": {
    "h": 5.571,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.48067,
    "c": 0.16543,
    "h": 30
  },
  "luminance": 0.09812
}

Semantic roles & 50–950 ramp

primary

#A7281B

secondary

#56BDC8

accent

#DEEF39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A7281B

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

Preview Lab → · Contrast checker → · Palette generator →