#A63A3D#A63A3D

#A63A3D is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.3% C 0.142 H 22.2°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#A63A3D
RGB	rgb(166, 58, 61)
HSL	hsl(358, 48%, 44%)
HSV	hsv(358, 65%, 65%)
CMYK	cmyk(0%, 65.1%, 63.3%, 34.9%)
CIE-LAB	lab(40.37, 44.62, 22.47)
CIE-LCH	lch(40.37, 49.96, 26.73°)
OKLab	oklab(50.31% 0.1318 0.0539)
OKLCH	oklch(50.31% 0.142 22.2)
XYZ	xyz(18.0830, 11.4725, 5.6762)
Luminance	0.1147 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A3D #3AA6A3

analogous

#A63A73 #A63A3D #A66D3A

triadic

#A63A3D #3DA63A #3A3DA6

tetradic

#A63A3D #73A63A #3AA6A3 #6D3AA6

square

#A63A3D #73A63A #3AA6A3 #6D3AA6

split-complementary

#A63A3D #3AA66D #3A73A6

monochromatic

#4B1A1C #792A2C #A63A3D #C5585B #D58688

Accessibility & contrast

On white

6.38

#A63A3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A63A3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A3D

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A3D	#FFFFFF	#000000	##FFFFFF
##A63A3D	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56513C

Deuteranopia (green-blind)

#71683A

Tritanopia (blue-blind)

#B6223C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a63a3d;
/* rgb */ color: rgb(166, 58, 61);
/* oklch */ color: oklch(50.3% 0.142 22.2);

Tailwind

colors: {
  custom: {
    50: '#c77672',
    500: '#a63a3d',
    950: '#000000',
  },
}

SCSS

$custom: #a63a3d;
$custom-light: #c77672;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a3d",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 61
  },
  "hsl": {
    "h": 358.333,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50311,
    "c": 0.14244,
    "h": 22.2
  },
  "luminance": 0.1147
}

Semantic roles & 50–950 ramp

primary

#A63A3D

secondary

#7DBFBD

accent

#D8D450

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63A3D

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

Preview Lab → · Contrast checker → · Palette generator →