#A3273F#A3273F

#A3273F is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.8% C 0.159 H 15.0°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#A3273F
RGB	rgb(163, 39, 63)
HSL	hsl(348, 61%, 40%)
HSV	hsv(348, 76%, 64%)
CMYK	cmyk(0%, 76.1%, 61.3%, 36.1%)
CIE-LAB	lab(37.11, 51.27, 16.87)
CIE-LCH	lch(37.11, 53.98, 18.21°)
OKLab	oklab(47.8% 0.1538 0.0413)
OKLCH	oklch(47.8% 0.159 15)
XYZ	xyz(16.7287, 9.5989, 5.6736)
Luminance	0.0960 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3273F #27A38B

analogous

#A3277D #A3273F #A34D27

triadic

#A3273F #3FA327 #273FA3

tetradic

#A3273F #7DA327 #27A38B #4D27A3

square

#A3273F #7DA327 #27A38B #4D27A3

split-complementary

#A3273F #27A34D #277DA3

monochromatic

#400F19 #721B2C #A3273F #CF3855 #DB697F

Accessibility & contrast

On white

7.19

#A3273F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#A3273F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3273F

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3273F	#FFFFFF	#000000	##FFFFFF
##A3273F	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49473F

Deuteranopia (green-blind)

#69613C

Tritanopia (blue-blind)

#B30031

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a3273f;
/* rgb */ color: rgb(163, 39, 63);
/* oklch */ color: oklch(47.8% 0.159 15.0);

Tailwind

colors: {
  custom: {
    50: '#c56c73',
    500: '#a3273f',
    950: '#000000',
  },
}

SCSS

$custom: #a3273f;
$custom-light: #c56c73;
$custom-dark: #000000;

JSON

{
  "hex": "#a3273f",
  "rgb": {
    "r": 163,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 348.387,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.47796,
    "c": 0.15926,
    "h": 15
  },
  "luminance": 0.09596
}

Semantic roles & 50–950 ramp

primary

#A3273F

secondary

#64C1AF

accent

#E4C543

background

#FDF6F7

surface

#FAECED

border

#D3C7C8

text

#140808

muted

#837B7B

Preview Lab

Preview with #A3273F

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

Preview Lab → · Contrast checker → · Palette generator →