#A63543#A63543

#A63543 is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.8% C 0.148 H 17.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#A63543
RGB	rgb(166, 53, 67)
HSL	hsl(353, 52%, 43%)
HSV	hsv(353, 68%, 65%)
CMYK	cmyk(0%, 68.1%, 59.6%, 34.9%)
CIE-LAB	lab(39.68, 47.19, 17.86)
CIE-LCH	lch(39.68, 50.46, 20.73°)
OKLab	oklab(49.84% 0.1411 0.0438)
OKLCH	oklch(49.84% 0.148 17.2)
XYZ	xyz(18.0138, 11.0609, 6.4955)
Luminance	0.1106 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63543 #35A698

analogous

#A6357C #A63543 #A65F35

triadic

#A63543 #43A635 #3543A6

tetradic

#A63543 #7CA635 #35A698 #5F35A6

square

#A63543 #7CA635 #35A698 #5F35A6

split-complementary

#A63543 #35A65F #357CA6

monochromatic

#49171E #782630 #A63543 #C75160 #D67F8A

Accessibility & contrast

On white

6.54

#A63543 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#A63543 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63543

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63543	#FFFFFF	#000000	##FFFFFF
##A63543	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524F43

Deuteranopia (green-blind)

#6F6640

Tritanopia (blue-blind)

#B61C3B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a63543;
/* rgb */ color: rgb(166, 53, 67);
/* oklch */ color: oklch(49.8% 0.148 17.2);

Tailwind

colors: {
  custom: {
    50: '#c77377',
    500: '#a63543',
    950: '#000000',
  },
}

SCSS

$custom: #a63543;
$custom-light: #c77377;
$custom-dark: #000000;

JSON

{
  "hex": "#a63543",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 67
  },
  "hsl": {
    "h": 352.566,
    "s": 51.598,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49838,
    "c": 0.14775,
    "h": 17.2
  },
  "luminance": 0.11058
}

Semantic roles & 50–950 ramp

primary

#A63543

secondary

#77BFB6

accent

#DBC94D

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#140908

muted

#837B7B

Preview Lab

Preview with #A63543

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

Preview Lab → · Contrast checker → · Palette generator →