#A1243B#A1243B

#A1243B is a mid, vivid red. Relative luminance 0.092; OKLCH L 47.1% C 0.160 H 16.1°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#A1243B
RGB	rgb(161, 36, 59)
HSL	hsl(349, 63%, 39%)
HSV	hsv(349, 78%, 63%)
CMYK	cmyk(0%, 77.6%, 63.4%, 36.9%)
CIE-LAB	lab(36.28, 51.40, 18.26)
CIE-LCH	lch(36.28, 54.55, 19.56°)
OKLab	oklab(47.09% 0.1537 0.0442)
OKLCH	oklch(47.09% 0.16 16.1)
XYZ	xyz(16.1199, 9.1570, 5.0555)
Luminance	0.0916 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1243B #24A18A

analogous

#A12479 #A1243B #A14B24

triadic

#A1243B #3BA124 #243BA1

tetradic

#A1243B #79A124 #24A18A #4B24A1

square

#A1243B #79A124 #24A18A #4B24A1

split-complementary

#A1243B #24A14B #2479A1

monochromatic

#3D0E16 #6F1929 #A1243B #D1314F #DC6379

Accessibility & contrast

On white

7.42

#A1243B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#A1243B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1243B

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1243B	#FFFFFF	#000000	##FFFFFF
##A1243B	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47453B

Deuteranopia (green-blind)

#675F38

Tritanopia (blue-blind)

#B1002E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #a1243b;
/* rgb */ color: rgb(161, 36, 59);
/* oklch */ color: oklch(47.1% 0.160 16.1);

Tailwind

colors: {
  custom: {
    50: '#c46b70',
    500: '#a1243b',
    950: '#000000',
  },
}

SCSS

$custom: #a1243b;
$custom-light: #c46b70;
$custom-dark: #000000;

JSON

{
  "hex": "#a1243b",
  "rgb": {
    "r": 161,
    "g": 36,
    "b": 59
  },
  "hsl": {
    "h": 348.96,
    "s": 63.452,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47086,
    "c": 0.15996,
    "h": 16.1
  },
  "luminance": 0.09155
}

Semantic roles & 50–950 ramp

primary

#A1243B

secondary

#5FC2AF

accent

#E6C841

background

#FCF6F6

surface

#F9ECEC

border

#D2C7C7

text

#140707

muted

#827A7A

Preview Lab

Preview with #A1243B

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

Preview Lab → · Contrast checker → · Palette generator →