#A4273F#A4273F

#A4273F is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.0% C 0.160 H 15.2°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#A4273F
RGB	rgb(164, 39, 63)
HSL	hsl(348, 62%, 40%)
HSV	hsv(348, 76%, 64%)
CMYK	cmyk(0%, 76.2%, 61.6%, 35.7%)
CIE-LAB	lab(37.31, 51.58, 17.17)
CIE-LCH	lch(37.31, 54.36, 18.41°)
OKLab	oklab(47.98% 0.1547 0.0419)
OKLCH	oklch(47.98% 0.16 15.2)
XYZ	xyz(16.9343, 9.7049, 5.6832)
Luminance	0.0970 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4273F #27A48C

analogous

#A4277E #A4273F #A44E27

triadic

#A4273F #3FA427 #273FA4

tetradic

#A4273F #7EA427 #27A48C #4E27A4

square

#A4273F #7EA427 #27A48C #4E27A4

split-complementary

#A4273F #27A44E #277EA4

monochromatic

#410F19 #731B2C #A4273F #D03855 #DC6A80

Accessibility & contrast

On white

7.14

#A4273F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A4273F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A4273F

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4273F	#FFFFFF	#000000	##FFFFFF
##A4273F	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473F

Deuteranopia (green-blind)

#69613C

Tritanopia (blue-blind)

#B40031

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a4273f;
/* rgb */ color: rgb(164, 39, 63);
/* oklch */ color: oklch(48.0% 0.160 15.2);

Tailwind

colors: {
  custom: {
    50: '#c66c73',
    500: '#a4273f',
    950: '#000000',
  },
}

SCSS

$custom: #a4273f;
$custom-light: #c66c73;
$custom-dark: #000000;

JSON

{
  "hex": "#a4273f",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 348.48,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47976,
    "c": 0.16025,
    "h": 15.2
  },
  "luminance": 0.09702
}

Semantic roles & 50–950 ramp

primary

#A4273F

secondary

#65C2B0

accent

#E5C643

background

#FDF6F7

surface

#FAECED

border

#D3C7C8

text

#140808

muted

#837B7B

Preview Lab

Preview with #A4273F

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

Preview Lab → · Contrast checker → · Palette generator →