#A7243A#A7243A

#A7243A is a mid, vivid red. Relative luminance 0.098; OKLCH L 48.2% C 0.166 H 17.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#A7243A
RGB	rgb(167, 36, 58)
HSL	hsl(350, 65%, 40%)
HSV	hsv(350, 78%, 65%)
CMYK	cmyk(0%, 78.4%, 65.3%, 34.5%)
CIE-LAB	lab(37.45, 53.13, 20.65)
CIE-LCH	lch(37.45, 57.00, 21.24°)
OKLab	oklab(48.16% 0.1583 0.0494)
OKLCH	oklch(48.16% 0.166 17.3)
XYZ	xyz(17.3328, 9.7854, 4.9783)
Luminance	0.0978 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7243A #24A791

analogous

#A7247B #A7243A #A75024

triadic

#A7243A #3AA724 #243AA7

tetradic

#A7243A #7BA724 #24A791 #5024A7

square

#A7243A #7BA724 #24A791 #5024A7

split-complementary

#A7243A #24A750 #247BA7

monochromatic

#420E17 #751929 #A7243A #D3354F #DE677B

Accessibility & contrast

On white

7.10

#A7243A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#A7243A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7243A

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7243A	#FFFFFF	#000000	##FFFFFF
##A7243A	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473A

Deuteranopia (green-blind)

#6B6236

Tritanopia (blue-blind)

#B7002E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a7243a;
/* rgb */ color: rgb(167, 36, 58);
/* oklch */ color: oklch(48.2% 0.166 17.3);

Tailwind

colors: {
  custom: {
    50: '#c96b70',
    500: '#a7243a',
    950: '#000000',
  },
}

SCSS

$custom: #a7243a;
$custom-light: #c96b70;
$custom-dark: #000000;

JSON

{
  "hex": "#a7243a",
  "rgb": {
    "r": 167,
    "g": 36,
    "b": 58
  },
  "hsl": {
    "h": 349.924,
    "s": 64.532,
    "l": 39.804
  },
  "oklch": {
    "l": 0.48159,
    "c": 0.16579,
    "h": 17.3
  },
  "luminance": 0.09783
}

Semantic roles & 50–950 ramp

primary

#A7243A

secondary

#63C4B4

accent

#E8CB40

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#150707

muted

#837A7A

Preview Lab

Preview with #A7243A

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

Preview Lab → · Contrast checker → · Palette generator →