#A3243F#A3243F

#A3243F is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.5% C 0.162 H 14.4°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#A3243F
RGB	rgb(163, 36, 63)
HSL	hsl(347, 64%, 39%)
HSV	hsv(347, 78%, 64%)
CMYK	cmyk(0%, 77.9%, 61.3%, 36.1%)
CIE-LAB	lab(36.76, 52.26, 16.41)
CIE-LCH	lch(36.76, 54.77, 17.43°)
OKLab	oklab(47.54% 0.157 0.0402)
OKLCH	oklch(47.54% 0.162 14.4)
XYZ	xyz(16.6340, 9.4096, 5.6420)
Luminance	0.0941 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3243F #24A388

analogous

#A3247F #A3243F #A34924

triadic

#A3243F #3FA324 #243FA3

tetradic

#A3243F #7FA324 #24A388 #4924A3

square

#A3243F #7FA324 #24A388 #4924A3

split-complementary

#A3243F #24A349 #247FA3

monochromatic

#3F0E18 #71192C #A3243F #D23254 #DD657E

Accessibility & contrast

On white

7.29

#A3243F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#A3243F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3243F

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3243F	#FFFFFF	#000000	##FFFFFF
##A3243F	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48463F

Deuteranopia (green-blind)

#68603C

Tritanopia (blue-blind)

#B30030

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a3243f;
/* rgb */ color: rgb(163, 36, 63);
/* oklch */ color: oklch(47.5% 0.162 14.4);

Tailwind

colors: {
  custom: {
    50: '#c56b73',
    500: '#a3243f',
    950: '#000000',
  },
}

SCSS

$custom: #a3243f;
$custom-light: #c56b73;
$custom-dark: #000000;

JSON

{
  "hex": "#a3243f",
  "rgb": {
    "r": 163,
    "g": 36,
    "b": 63
  },
  "hsl": {
    "h": 347.244,
    "s": 63.819,
    "l": 39.02
  },
  "oklch": {
    "l": 0.47536,
    "c": 0.16205,
    "h": 14.4
  },
  "luminance": 0.09407
}

Semantic roles & 50–950 ramp

primary

#A3243F

secondary

#60C2AE

accent

#E7C441

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140708

muted

#837A7B

Preview Lab

Preview with #A3243F

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

Preview Lab → · Contrast checker → · Palette generator →