#A0243B#A0243B

#A0243B is a mid, vivid red. Relative luminance 0.091; OKLCH L 46.9% C 0.159 H 15.9°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#A0243B
RGB	rgb(160, 36, 59)
HSL	hsl(349, 63%, 38%)
HSV	hsv(349, 78%, 63%)
CMYK	cmyk(0%, 77.5%, 63.1%, 37.3%)
CIE-LAB	lab(36.09, 51.10, 17.97)
CIE-LCH	lch(36.09, 54.16, 19.37°)
OKLab	oklab(46.9% 0.1529 0.0436)
OKLCH	oklch(46.9% 0.159 15.9)
XYZ	xyz(15.9192, 9.0535, 5.0461)
Luminance	0.0905 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A0243B #24A089

analogous

#A02479 #A0243B #A04B24

triadic

#A0243B #3BA024 #243BA0

tetradic

#A0243B #79A024 #24A089 #4B24A0

square

#A0243B #79A024 #24A089 #4B24A0

split-complementary

#A0243B #24A04B #2479A0

monochromatic

#3C0E16 #6E1929 #A0243B #D1314E #DC6379

Accessibility & contrast

On white

7.47

#A0243B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#A0243B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A0243B

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A0243B	#FFFFFF	#000000	##FFFFFF
##A0243B	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47443B

Deuteranopia (green-blind)

#675E38

Tritanopia (blue-blind)

#B0002E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a0243b;
/* rgb */ color: rgb(160, 36, 59);
/* oklch */ color: oklch(46.9% 0.159 15.9);

Tailwind

colors: {
  custom: {
    50: '#c36a70',
    500: '#a0243b',
    950: '#000000',
  },
}

SCSS

$custom: #a0243b;
$custom-light: #c36a70;
$custom-dark: #000000;

JSON

{
  "hex": "#a0243b",
  "rgb": {
    "r": 160,
    "g": 36,
    "b": 59
  },
  "hsl": {
    "h": 348.871,
    "s": 63.265,
    "l": 38.431
  },
  "oklch": {
    "l": 0.46904,
    "c": 0.15897,
    "h": 15.9
  },
  "luminance": 0.09051
}

Semantic roles & 50–950 ramp

primary

#A0243B

secondary

#5FC1AF

accent

#E6C841

background

#FCF6F6

surface

#F9ECEC

border

#D2C7C7

text

#140707

muted

#827A7A

Preview Lab

Preview with #A0243B

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

Preview Lab → · Contrast checker → · Palette generator →