#A63528#A63528

#A63528 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.4% C 0.151 H 29.9°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#A63528
RGB	rgb(166, 53, 40)
HSL	hsl(6, 61%, 40%)
HSV	hsv(6, 76%, 65%)
CMYK	cmyk(0%, 68.1%, 75.9%, 34.9%)
CIE-LAB	lab(39.26, 45.64, 33.69)
CIE-LCH	lch(39.26, 56.73, 36.43°)
OKLab	oklab(49.38% 0.1308 0.0752)
OKLCH	oklch(49.38% 0.151 29.9)
XYZ	xyz(17.3839, 10.8090, 3.1780)
Luminance	0.1081 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63528 #2899A6

analogous

#A6285A #A63528 #A67428

triadic

#A63528 #28A635 #3528A6

tetradic

#A63528 #5AA628 #2899A6 #7428A6

square

#A63528 #5AA628 #2899A6 #7428A6

split-complementary

#A63528 #28A674 #285AA6

monochromatic

#431610 #75251C #A63528 #D04B3B #DC786D

Accessibility & contrast

On white

6.64

#A63528 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#A63528 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63528

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63528	#FFFFFF	#000000	##FFFFFF
##A63528	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D26

Deuteranopia (green-blind)

#716624

Tritanopia (blue-blind)

#B71333

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a63528;
/* rgb */ color: rgb(166, 53, 40);
/* oklch */ color: oklch(49.4% 0.151 29.9);

Tailwind

colors: {
  custom: {
    50: '#c87363',
    500: '#a63528',
    950: '#000000',
  },
}

SCSS

$custom: #a63528;
$custom-light: #c87363;
$custom-dark: #000000;

JSON

{
  "hex": "#a63528",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 40
  },
  "hsl": {
    "h": 6.19,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49382,
    "c": 0.15083,
    "h": 29.9
  },
  "luminance": 0.10806
}

Semantic roles & 50–950 ramp

primary

#A63528

secondary

#67B9C2

accent

#D4E444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150805

muted

#837B79

Preview Lab

Preview with #A63528

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

Preview Lab → · Contrast checker → · Palette generator →