#A3273D#A3273D

#A3273D is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.8% C 0.159 H 16.0°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#A3273D
RGB	rgb(163, 39, 61)
HSL	hsl(349, 61%, 40%)
HSV	hsv(349, 76%, 64%)
CMYK	cmyk(0%, 76.1%, 62.6%, 36.1%)
CIE-LAB	lab(37.07, 51.14, 18.09)
CIE-LCH	lch(37.07, 54.25, 19.48°)
OKLab	oklab(47.75% 0.153 0.044)
OKLCH	oklch(47.75% 0.159 16)
XYZ	xyz(16.6738, 9.5769, 5.3845)
Luminance	0.0957 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3273D #27A38D

analogous

#A3277B #A3273D #A34F27

triadic

#A3273D #3DA327 #273DA3

tetradic

#A3273D #7BA327 #27A38D #4F27A3

square

#A3273D #7BA327 #27A38D #4F27A3

split-complementary

#A3273D #27A34F #277BA3

monochromatic

#400F18 #721B2B #A3273D #CF3853 #DB697D

Accessibility & contrast

On white

7.20

#A3273D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A3273D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3273D

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3273D	#FFFFFF	#000000	##FFFFFF
##A3273D	1.00	7.20	2.91	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473D

Deuteranopia (green-blind)

#69613A

Tritanopia (blue-blind)

#B30030

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a3273d;
/* rgb */ color: rgb(163, 39, 61);
/* oklch */ color: oklch(47.8% 0.159 16.0);

Tailwind

colors: {
  custom: {
    50: '#c56c72',
    500: '#a3273d',
    950: '#000000',
  },
}

SCSS

$custom: #a3273d;
$custom-light: #c56c72;
$custom-dark: #000000;

JSON

{
  "hex": "#a3273d",
  "rgb": {
    "r": 163,
    "g": 39,
    "b": 61
  },
  "hsl": {
    "h": 349.355,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47753,
    "c": 0.1592,
    "h": 16
  },
  "luminance": 0.09574
}

Semantic roles & 50–950 ramp

primary

#A3273D

secondary

#64C1B1

accent

#E4C843

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A3273D

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

Preview Lab → · Contrast checker → · Palette generator →