#A63B3E#A63B3E

#A63B3E is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.5% C 0.141 H 22.1°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#A63B3E
RGB	rgb(166, 59, 62)
HSL	hsl(358, 48%, 44%)
HSV	hsv(358, 64%, 65%)
CMYK	cmyk(0%, 64.5%, 62.7%, 34.9%)
CIE-LAB	lab(40.55, 44.24, 22.09)
CIE-LCH	lch(40.55, 49.45, 26.53°)
OKLab	oklab(50.46% 0.1308 0.0531)
OKLCH	oklch(50.46% 0.141 22.1)
XYZ	xyz(18.1611, 11.5852, 5.8363)
Luminance	0.1158 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63B3E #3BA6A3

analogous

#A63B74 #A63B3E #A66E3B

triadic

#A63B3E #3EA63B #3B3EA6

tetradic

#A63B3E #74A63B #3BA6A3 #6E3BA6

square

#A63B3E #74A63B #3BA6A3 #6E3BA6

split-complementary

#A63B3E #3BA66E #3B74A6

monochromatic

#4C1B1C #792B2D #A63B3E #C45A5D #D48789

Accessibility & contrast

On white

6.33

#A63B3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#A63B3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63B3E

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63B3E	#FFFFFF	#000000	##FFFFFF
##A63B3E	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513D

Deuteranopia (green-blind)

#72683B

Tritanopia (blue-blind)

#B6243D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63b3e;
/* rgb */ color: rgb(166, 59, 62);
/* oklch */ color: oklch(50.5% 0.141 22.1);

Tailwind

colors: {
  custom: {
    50: '#c77673',
    500: '#a63b3e',
    950: '#000000',
  },
}

SCSS

$custom: #a63b3e;
$custom-light: #c77673;
$custom-dark: #000000;

JSON

{
  "hex": "#a63b3e",
  "rgb": {
    "r": 166,
    "g": 59,
    "b": 62
  },
  "hsl": {
    "h": 358.318,
    "s": 47.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50455,
    "c": 0.14121,
    "h": 22.1
  },
  "luminance": 0.11583
}

Semantic roles & 50–950 ramp

primary

#A63B3E

secondary

#7EBFBD

accent

#D7D351

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63B3E

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

Preview Lab → · Contrast checker → · Palette generator →