#A42D3B#A42D3B

#A42D3B is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.5% C 0.154 H 18.7°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#A42D3B
RGB	rgb(164, 45, 59)
HSL	hsl(353, 57%, 41%)
HSV	hsv(353, 73%, 64%)
CMYK	cmyk(0%, 72.6%, 64%, 35.7%)
CIE-LAB	lab(38.00, 49.18, 20.60)
CIE-LCH	lch(38.00, 53.32, 22.73°)
OKLab	oklab(48.46% 0.1462 0.0495)
OKLCH	oklch(48.46% 0.154 18.7)
XYZ	xyz(17.0394, 10.0875, 5.1867)
Luminance	0.1008 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42D3B #2DA496

analogous

#A42D76 #A42D3B #A45A2D

triadic

#A42D3B #3BA42D #2D3BA4

tetradic

#A42D3B #76A42D #2DA496 #5A2DA4

square

#A42D3B #76A42D #2DA496 #5A2DA4

split-complementary

#A42D3B #2DA45A #2D76A4

monochromatic

#441318 #74202A #A42D3B #CB4353 #D9737F

Accessibility & contrast

On white

6.96

#A42D3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#A42D3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A42D3B

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42D3B	#FFFFFF	#000000	##FFFFFF
##A42D3B	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D493B

Deuteranopia (green-blind)

#6C6338

Tritanopia (blue-blind)

#B40633

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a42d3b;
/* rgb */ color: rgb(164, 45, 59);
/* oklch */ color: oklch(48.5% 0.154 18.7);

Tailwind

colors: {
  custom: {
    50: '#c66f70',
    500: '#a42d3b',
    950: '#000000',
  },
}

SCSS

$custom: #a42d3b;
$custom-light: #c66f70;
$custom-dark: #000000;

JSON

{
  "hex": "#a42d3b",
  "rgb": {
    "r": 164,
    "g": 45,
    "b": 59
  },
  "hsl": {
    "h": 352.941,
    "s": 56.938,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48464,
    "c": 0.15435,
    "h": 18.7
  },
  "luminance": 0.10085
}

Semantic roles & 50–950 ramp

primary

#A42D3B

secondary

#6DC0B6

accent

#E0CE48

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42D3B

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

Preview Lab → · Contrast checker → · Palette generator →