#A63E27#A63E27

#A63E27 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.5% C 0.142 H 34.0°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#A63E27
RGB	rgb(166, 62, 39)
HSL	hsl(11, 62%, 40%)
HSV	hsv(11, 77%, 65%)
CMYK	cmyk(0%, 62.7%, 76.5%, 34.9%)
CIE-LAB	lab(40.74, 41.60, 35.85)
CIE-LCH	lch(40.74, 54.91, 40.76°)
OKLab	oklab(50.49% 0.118 0.0796)
OKLCH	oklch(50.49% 0.142 34)
XYZ	xyz(17.8166, 11.7012, 3.2395)
Luminance	0.1170 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E27 #278FA6

analogous

#A62750 #A63E27 #A67D27

triadic

#A63E27 #27A63E #3E27A6

tetradic

#A63E27 #50A627 #278FA6 #7D27A6

square

#A63E27 #50A627 #278FA6 #7D27A6

split-complementary

#A63E27 #27A67D #2750A6

monochromatic

#431910 #742B1B #A63E27 #D1553A #DC806B

Accessibility & contrast

On white

6.29

#A63E27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#A63E27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E27

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E27	#FFFFFF	#000000	##FFFFFF
##A63E27	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5224

Deuteranopia (green-blind)

#756923

Tritanopia (blue-blind)

#B72439

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e27;
/* rgb */ color: rgb(166, 62, 39);
/* oklch */ color: oklch(50.5% 0.142 34.0);

Tailwind

colors: {
  custom: {
    50: '#c87862',
    500: '#a63e27',
    950: '#000000',
  },
}

SCSS

$custom: #a63e27;
$custom-light: #c87862;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e27",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 39
  },
  "hsl": {
    "h": 10.866,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50492,
    "c": 0.14231,
    "h": 34
  },
  "luminance": 0.11699
}

Semantic roles & 50–950 ramp

primary

#A63E27

secondary

#66B2C3

accent

#C8E543

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A63E27

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

Preview Lab → · Contrast checker → · Palette generator →