#A3273C#A3273C

#A3273C is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.7% C 0.159 H 16.5°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#A3273C
RGB	rgb(163, 39, 60)
HSL	hsl(350, 61%, 40%)
HSV	hsv(350, 76%, 64%)
CMYK	cmyk(0%, 76.1%, 63.2%, 36.1%)
CIE-LAB	lab(37.05, 51.08, 18.70)
CIE-LCH	lch(37.05, 54.39, 20.11°)
OKLab	oklab(47.73% 0.1526 0.0453)
OKLCH	oklch(47.73% 0.159 16.5)
XYZ	xyz(16.6471, 9.5663, 5.2440)
Luminance	0.0956 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3273C #27A38E

analogous

#A3277A #A3273C #A35027

triadic

#A3273C #3CA327 #273CA3

tetradic

#A3273C #7AA327 #27A38E #5027A3

square

#A3273C #7AA327 #27A38E #5027A3

split-complementary

#A3273C #27A350 #277AA3

monochromatic

#400F18 #721B2A #A3273C #CF3852 #DB697D

Accessibility & contrast

On white

7.21

#A3273C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A3273C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3273C

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3273C	#FFFFFF	#000000	##FFFFFF
##A3273C	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473C

Deuteranopia (green-blind)

#696139

Tritanopia (blue-blind)

#B30030

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a3273c;
/* rgb */ color: rgb(163, 39, 60);
/* oklch */ color: oklch(47.7% 0.159 16.5);

Tailwind

colors: {
  custom: {
    50: '#c56c71',
    500: '#a3273c',
    950: '#000000',
  },
}

SCSS

$custom: #a3273c;
$custom-light: #c56c71;
$custom-dark: #000000;

JSON

{
  "hex": "#a3273c",
  "rgb": {
    "r": 163,
    "g": 39,
    "b": 60
  },
  "hsl": {
    "h": 349.839,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47732,
    "c": 0.15918,
    "h": 16.5
  },
  "luminance": 0.09564
}

Semantic roles & 50–950 ramp

primary

#A3273C

secondary

#64C1B2

accent

#E4C943

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A3273C

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

Preview Lab → · Contrast checker → · Palette generator →