#A63727#A63727

#A63727 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.6% C 0.149 H 31.0°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#A63727
RGB	rgb(166, 55, 39)
HSL	hsl(8, 62%, 40%)
HSV	hsv(8, 77%, 65%)
CMYK	cmyk(0%, 66.9%, 76.5%, 34.9%)
CIE-LAB	lab(39.56, 44.75, 34.59)
CIE-LCH	lch(39.56, 56.56, 37.70°)
OKLab	oklab(49.61% 0.1277 0.0769)
OKLCH	oklch(49.61% 0.149 31)
XYZ	xyz(17.4602, 10.9884, 3.1206)
Luminance	0.1099 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63727 #2796A6

analogous

#A62757 #A63727 #A67627

triadic

#A63727 #27A637 #3727A6

tetradic

#A63727 #57A627 #2796A6 #7627A6

square

#A63727 #57A627 #2796A6 #7627A6

split-complementary

#A63727 #27A676 #2757A6

monochromatic

#431610 #74271B #A63727 #D14D3A #DC796B

Accessibility & contrast

On white

6.57

#A63727 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#A63727 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63727

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63727	#FFFFFF	#000000	##FFFFFF
##A63727	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E24

Deuteranopia (green-blind)

#726623

Tritanopia (blue-blind)

#B71734

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a63727;
/* rgb */ color: rgb(166, 55, 39);
/* oklch */ color: oklch(49.6% 0.149 31.0);

Tailwind

colors: {
  custom: {
    50: '#c87462',
    500: '#a63727',
    950: '#000000',
  },
}

SCSS

$custom: #a63727;
$custom-light: #c87462;
$custom-dark: #000000;

JSON

{
  "hex": "#a63727",
  "rgb": {
    "r": 166,
    "g": 55,
    "b": 39
  },
  "hsl": {
    "h": 7.559,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49606,
    "c": 0.1491,
    "h": 31
  },
  "luminance": 0.10986
}

Semantic roles & 50–950 ramp

primary

#A63727

secondary

#66B7C3

accent

#D1E543

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150805

muted

#837B79

Preview Lab

Preview with #A63727

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

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