#A63A2A#A63A2A

#A63A2A is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.0% C 0.146 H 31.1°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#A63A2A
RGB	rgb(166, 58, 42)
HSL	hsl(8, 60%, 41%)
HSV	hsv(8, 75%, 65%)
CMYK	cmyk(0%, 65.1%, 74.7%, 34.9%)
CIE-LAB	lab(40.09, 43.56, 33.46)
CIE-LCH	lch(40.09, 54.93, 37.53°)
OKLab	oklab(50.01% 0.1246 0.0752)
OKLCH	oklch(50.01% 0.146 31.1)
XYZ	xyz(17.6588, 11.3028, 3.4418)
Luminance	0.1130 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63A2A #2A96A6

analogous

#A62A58 #A63A2A #A6782A

triadic

#A63A2A #2AA63A #3A2AA6

tetradic

#A63A2A #58A62A #2A96A6 #782AA6

square

#A63A2A #58A62A #2A96A6 #782AA6

split-complementary

#A63A2A #2AA678 #2A58A6

monochromatic

#441811 #75291E #A63A2A #CE513F #DB7D70

Accessibility & contrast

On white

6.44

#A63A2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#A63A2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63A2A

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63A2A	#FFFFFF	#000000	##FFFFFF
##A63A2A	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585028

Deuteranopia (green-blind)

#736726

Tritanopia (blue-blind)

#B71E37

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a63a2a;
/* rgb */ color: rgb(166, 58, 42);
/* oklch */ color: oklch(50.0% 0.146 31.1);

Tailwind

colors: {
  custom: {
    50: '#c87564',
    500: '#a63a2a',
    950: '#000000',
  },
}

SCSS

$custom: #a63a2a;
$custom-light: #c87564;
$custom-dark: #000000;

JSON

{
  "hex": "#a63a2a",
  "rgb": {
    "r": 166,
    "g": 58,
    "b": 42
  },
  "hsl": {
    "h": 7.742,
    "s": 59.615,
    "l": 40.784
  },
  "oklch": {
    "l": 0.50012,
    "c": 0.14556,
    "h": 31.1
  },
  "luminance": 0.113
}

Semantic roles & 50–950 ramp

primary

#A63A2A

secondary

#6AB6C2

accent

#CEE345

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140905

muted

#837B7A

Preview Lab

Preview with #A63A2A

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

Preview Lab → · Contrast checker → · Palette generator →