#A0271B#A0271B

#A0271B is a mid, vivid red. Relative luminance 0.090; OKLCH L 46.7% C 0.159 H 29.9°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#A0271B
RGB	rgb(160, 39, 27)
HSL	hsl(5, 71%, 37%)
HSV	hsv(5, 83%, 63%)
CMYK	cmyk(0%, 75.6%, 83.1%, 37.3%)
CIE-LAB	lab(36.00, 48.59, 37.21)
CIE-LCH	lch(36.00, 61.20, 37.44°)
OKLab	oklab(46.69% 0.138 0.0793)
OKLCH	oklch(46.69% 0.159 29.9)
XYZ	xyz(15.4224, 9.0062, 1.9630)
Luminance	0.0900 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0271B #1B94A0

analogous

#A01B51 #A0271B #A06A1B

triadic

#A0271B #1BA027 #271BA0

tetradic

#A0271B #51A01B #1B94A0 #6A1BA0

square

#A0271B #51A01B #1B94A0 #6A1BA0

split-complementary

#A0271B #1BA06A #1B51A0

monochromatic

#370D09 #6C1A12 #A0271B #D43424 #E26053

Accessibility & contrast

On white

7.50

#A0271B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#A0271B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0271B

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0271B	#FFFFFF	#000000	##FFFFFF
##A0271B	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4418

Deuteranopia (green-blind)

#6A5E15

Tritanopia (blue-blind)

#B10026

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a0271b;
/* rgb */ color: rgb(160, 39, 27);
/* oklch */ color: oklch(46.7% 0.159 29.9);

Tailwind

colors: {
  custom: {
    50: '#c56b59',
    500: '#a0271b',
    950: '#000000',
  },
}

SCSS

$custom: #a0271b;
$custom-light: #c56b59;
$custom-dark: #000000;

JSON

{
  "hex": "#a0271b",
  "rgb": {
    "r": 160,
    "g": 39,
    "b": 27
  },
  "hsl": {
    "h": 5.414,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.46691,
    "c": 0.15919,
    "h": 29.9
  },
  "luminance": 0.09004
}

Semantic roles & 50–950 ramp

primary

#A0271B

secondary

#52BBC5

accent

#DEEE3A

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A0271B

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

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