#A63E36#A63E36

#A63E36 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.7% C 0.139 H 27.5°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#A63E36
RGB	rgb(166, 62, 54)
HSL	hsl(4, 51%, 43%)
HSV	hsv(4, 67%, 65%)
CMYK	cmyk(0%, 62.7%, 67.5%, 34.9%)
CIE-LAB	lab(40.93, 42.36, 27.42)
CIE-LCH	lch(40.93, 50.46, 32.92°)
OKLab	oklab(50.7% 0.1233 0.0642)
OKLCH	oklch(50.7% 0.139 27.5)
XYZ	xyz(18.1162, 11.8210, 4.8170)
Luminance	0.1182 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E36 #369EA6

analogous

#A63666 #A63E36 #A67636

triadic

#A63E36 #36A63E #3E36A6

tetradic

#A63E36 #66A636 #369EA6 #7636A6

square

#A63E36 #66A636 #369EA6 #7636A6

split-complementary

#A63E36 #36A676 #3666A6

monochromatic

#4A1C18 #782D27 #A63E36 #C75B52 #D68781

Accessibility & contrast

On white

6.24

#A63E36 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63E36 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E36

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E36	#FFFFFF	#000000	##FFFFFF
##A63E36	1.00	6.24	3.36	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5235

Deuteranopia (green-blind)

#746933

Tritanopia (blue-blind)

#B6273D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e36;
/* rgb */ color: rgb(166, 62, 54);
/* oklch */ color: oklch(50.7% 0.139 27.5);

Tailwind

colors: {
  custom: {
    50: '#c7786d',
    500: '#a63e36',
    950: '#000000',
  },
}

SCSS

$custom: #a63e36;
$custom-light: #c7786d;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e36",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 54
  },
  "hsl": {
    "h": 4.286,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50699,
    "c": 0.13903,
    "h": 27.5
  },
  "luminance": 0.11819
}

Semantic roles & 50–950 ramp

primary

#A63E36

secondary

#79BABF

accent

#D0DA4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140907

muted

#837B7A

Preview Lab

Preview with #A63E36

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

Preview Lab → · Contrast checker → · Palette generator →