#A63E31#A63E31

#A63E31 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.6% C 0.140 H 29.9°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#A63E31
RGB	rgb(166, 62, 49)
HSL	hsl(7, 54%, 42%)
HSV	hsv(7, 70%, 65%)
CMYK	cmyk(0%, 62.7%, 70.5%, 34.9%)
CIE-LAB	lab(40.86, 42.08, 30.30)
CIE-LCH	lch(40.86, 51.85, 35.75°)
OKLab	oklab(50.62% 0.1215 0.0697)
OKLCH	oklch(50.62% 0.14 29.9)
XYZ	xyz(18.0047, 11.7765, 4.2301)
Luminance	0.1177 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E31 #3199A6

analogous

#A6315E #A63E31 #A67931

triadic

#A63E31 #31A63E #3E31A6

tetradic

#A63E31 #5EA631 #3199A6 #7931A6

square

#A63E31 #5EA631 #3199A6 #7931A6

split-complementary

#A63E31 #31A679 #315EA6

monochromatic

#471B15 #772C23 #A63E31 #CA594A #D8847A

Accessibility & contrast

On white

6.26

#A63E31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#A63E31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E31

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E31	#FFFFFF	#000000	##FFFFFF
##A63E31	1.00	6.26	3.35	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522F

Deuteranopia (green-blind)

#74692E

Tritanopia (blue-blind)

#B6263B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e31;
/* rgb */ color: rgb(166, 62, 49);
/* oklch */ color: oklch(50.6% 0.140 29.9);

Tailwind

colors: {
  custom: {
    50: '#c77869',
    500: '#a63e31',
    950: '#000000',
  },
}

SCSS

$custom: #a63e31;
$custom-light: #c77869;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e31",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 49
  },
  "hsl": {
    "h": 6.667,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50622,
    "c": 0.14003,
    "h": 29.9
  },
  "luminance": 0.11774
}

Semantic roles & 50–950 ramp

primary

#A63E31

secondary

#73B8C0

accent

#CDDE4A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140906

muted

#837B7A

Preview Lab

Preview with #A63E31

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

Preview Lab → · Contrast checker → · Palette generator →