#A63F55#A63F55

#A63F55 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.5% C 0.137 H 10.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#A63F55
RGB	rgb(166, 63, 85)
HSL	hsl(347, 45%, 45%)
HSV	hsv(347, 62%, 65%)
CMYK	cmyk(0%, 62%, 48.8%, 34.9%)
CIE-LAB	lab(41.72, 44.30, 9.40)
CIE-LCH	lch(41.72, 45.28, 11.98°)
OKLab	oklab(51.49% 0.1344 0.0242)
OKLCH	oklch(51.49% 0.137 10.2)
XYZ	xyz(19.1445, 12.3202, 9.9624)
Luminance	0.1232 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63F55 #3FA690

analogous

#A63F89 #A63F55 #A65C3F

triadic

#A63F55 #55A63F #3F55A6

tetradic

#A63F55 #89A63F #3FA690 #5C3FA6

square

#A63F55 #89A63F #3FA690 #5C3FA6

split-complementary

#A63F55 #3FA65C #3F89A6

monochromatic

#4D1D28 #7A2E3E #A63F55 #C36075 #D38C9B

Accessibility & contrast

On white

6.06

#A63F55 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#A63F55 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63F55

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63F55	#FFFFFF	#000000	##FFFFFF
##A63F55	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555555

Deuteranopia (green-blind)

#706A53

Tritanopia (blue-blind)

#B43047

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #a63f55;
/* rgb */ color: rgb(166, 63, 85);
/* oklch */ color: oklch(51.5% 0.137 10.2);

Tailwind

colors: {
  custom: {
    50: '#c57984',
    500: '#a63f55',
    950: '#000000',
  },
}

SCSS

$custom: #a63f55;
$custom-light: #c57984;
$custom-dark: #000000;

JSON

{
  "hex": "#a63f55",
  "rgb": {
    "r": 166,
    "g": 63,
    "b": 85
  },
  "hsl": {
    "h": 347.184,
    "s": 44.978,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51492,
    "c": 0.13652,
    "h": 10.2
  },
  "luminance": 0.12318
}

Semantic roles & 50–950 ramp

primary

#A63F55

secondary

#83BEB1

accent

#D5B953

background

#FCF7F8

surface

#F9EEEF

border

#D2C9CA

text

#14090A

muted

#827B7C

Preview Lab

Preview with #A63F55

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

Preview Lab → · Contrast checker → · Palette generator →