#A4273D#A4273D

#A4273D is a mid, vivid red. Relative luminance 0.097; OKLCH L 47.9% C 0.160 H 16.2°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#A4273D
RGB	rgb(164, 39, 61)
HSL	hsl(349, 62%, 40%)
HSV	hsv(349, 76%, 64%)
CMYK	cmyk(0%, 76.2%, 62.8%, 35.7%)
CIE-LAB	lab(37.27, 51.44, 18.39)
CIE-LCH	lch(37.27, 54.63, 19.67°)
OKLab	oklab(47.93% 0.1538 0.0446)
OKLCH	oklch(47.93% 0.16 16.2)
XYZ	xyz(16.8794, 9.6830, 5.3942)
Luminance	0.0968 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4273D #27A48E

analogous

#A4277C #A4273D #A45027

triadic

#A4273D #3DA427 #273DA4

tetradic

#A4273D #7CA427 #27A48E #5027A4

square

#A4273D #7CA427 #27A48E #5027A4

split-complementary

#A4273D #27A450 #277CA4

monochromatic

#410F18 #731B2B #A4273D #D03853 #DC6A7E

Accessibility & contrast

On white

7.15

#A4273D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A4273D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A4273D

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4273D	#FFFFFF	#000000	##FFFFFF
##A4273D	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473D

Deuteranopia (green-blind)

#6A613A

Tritanopia (blue-blind)

#B40030

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a4273d;
/* rgb */ color: rgb(164, 39, 61);
/* oklch */ color: oklch(47.9% 0.160 16.2);

Tailwind

colors: {
  custom: {
    50: '#c66c72',
    500: '#a4273d',
    950: '#000000',
  },
}

SCSS

$custom: #a4273d;
$custom-light: #c66c72;
$custom-dark: #000000;

JSON

{
  "hex": "#a4273d",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 61
  },
  "hsl": {
    "h": 349.44,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47933,
    "c": 0.16019,
    "h": 16.2
  },
  "luminance": 0.0968
}

Semantic roles & 50–950 ramp

primary

#A4273D

secondary

#65C2B1

accent

#E5C843

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A4273D

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

Preview Lab → · Contrast checker → · Palette generator →