#A7243B#A7243B

#A7243B is a mid, vivid red. Relative luminance 0.098; OKLCH L 48.2% C 0.166 H 16.9°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#A7243B
RGB	rgb(167, 36, 59)
HSL	hsl(349, 65%, 40%)
HSV	hsv(349, 78%, 65%)
CMYK	cmyk(0%, 78.4%, 64.7%, 34.5%)
CIE-LAB	lab(37.47, 53.19, 20.04)
CIE-LCH	lch(37.47, 56.84, 20.64°)
OKLab	oklab(48.18% 0.1587 0.0481)
OKLCH	oklch(48.18% 0.166 16.9)
XYZ	xyz(17.3585, 9.7956, 5.1136)
Luminance	0.0979 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7243B #24A790

analogous

#A7247C #A7243B #A74F24

triadic

#A7243B #3BA724 #243BA7

tetradic

#A7243B #7CA724 #24A790 #4F24A7

square

#A7243B #7CA724 #24A790 #4F24A7

split-complementary

#A7243B #24A74F #247CA7

monochromatic

#420E17 #751929 #A7243B #D33551 #DE677C

Accessibility & contrast

On white

7.10

#A7243B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#A7243B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7243B

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7243B	#FFFFFF	#000000	##FFFFFF
##A7243B	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)

#4A473B

Deuteranopia (green-blind)

#6B6237

Tritanopia (blue-blind)

#B7002E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a7243b;
/* rgb */ color: rgb(167, 36, 59);
/* oklch */ color: oklch(48.2% 0.166 16.9);

Tailwind

colors: {
  custom: {
    50: '#c96b70',
    500: '#a7243b',
    950: '#000000',
  },
}

SCSS

$custom: #a7243b;
$custom-light: #c96b70;
$custom-dark: #000000;

JSON

{
  "hex": "#a7243b",
  "rgb": {
    "r": 167,
    "g": 36,
    "b": 59
  },
  "hsl": {
    "h": 349.466,
    "s": 64.532,
    "l": 39.804
  },
  "oklch": {
    "l": 0.48179,
    "c": 0.16579,
    "h": 16.9
  },
  "luminance": 0.09793
}

Semantic roles & 50–950 ramp

primary

#A7243B

secondary

#63C4B3

accent

#E8CA40

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A7243B

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

Preview Lab → · Contrast checker → · Palette generator →