#A63B41#A63B41

#A63B41 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.5% C 0.141 H 20.5°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#A63B41
RGB	rgb(166, 59, 65)
HSL	hsl(357, 48%, 44%)
HSV	hsv(357, 64%, 65%)
CMYK	cmyk(0%, 64.5%, 60.8%, 34.9%)
CIE-LAB	lab(40.60, 44.45, 20.31)
CIE-LCH	lch(40.60, 48.87, 24.56°)
OKLab	oklab(50.51% 0.132 0.0493)
OKLCH	oklch(50.51% 0.141 20.5)
XYZ	xyz(18.2457, 11.6190, 6.2819)
Luminance	0.1162 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63B41 #3BA6A0

analogous

#A63B77 #A63B41 #A66B3B

triadic

#A63B41 #41A63B #3B41A6

tetradic

#A63B41 #77A63B #3BA6A0 #6B3BA6

square

#A63B41 #77A63B #3BA6A0 #6B3BA6

split-complementary

#A63B41 #3BA66B #3B77A6

monochromatic

#4C1B1E #792B2F #A63B41 #C45A60 #D4878B

Accessibility & contrast

On white

6.32

#A63B41 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#A63B41 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63B41

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63B41	#FFFFFF	#000000	##FFFFFF
##A63B41	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565140

Deuteranopia (green-blind)

#71683E

Tritanopia (blue-blind)

#B6253E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63b41;
/* rgb */ color: rgb(166, 59, 65);
/* oklch */ color: oklch(50.5% 0.141 20.5);

Tailwind

colors: {
  custom: {
    50: '#c67675',
    500: '#a63b41',
    950: '#000000',
  },
}

SCSS

$custom: #a63b41;
$custom-light: #c67675;
$custom-dark: #000000;

JSON

{
  "hex": "#a63b41",
  "rgb": {
    "r": 166,
    "g": 59,
    "b": 65
  },
  "hsl": {
    "h": 356.636,
    "s": 47.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50514,
    "c": 0.14095,
    "h": 20.5
  },
  "luminance": 0.11617
}

Semantic roles & 50–950 ramp

primary

#A63B41

secondary

#7EBFBB

accent

#D7D051

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A63B41

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

Preview Lab → · Contrast checker → · Palette generator →