#A63E39#A63E39

#A63E39 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.7% C 0.139 H 26.0°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#A63E39
RGB	rgb(166, 62, 57)
HSL	hsl(3, 49%, 44%)
HSV	hsv(3, 66%, 65%)
CMYK	cmyk(0%, 62.7%, 65.7%, 34.9%)
CIE-LAB	lab(40.98, 42.54, 25.68)
CIE-LCH	lch(40.98, 49.69, 31.11°)
OKLab	oklab(50.75% 0.1245 0.0607)
OKLCH	oklch(50.75% 0.139 26)
XYZ	xyz(18.1888, 11.8501, 5.1996)
Luminance	0.1185 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E39 #39A1A6

analogous

#A6396A #A63E39 #A67439

triadic

#A63E39 #39A63E #3E39A6

tetradic

#A63E39 #6AA639 #39A1A6 #7439A6

square

#A63E39 #6AA639 #39A1A6 #7439A6

split-complementary

#A63E39 #39A674 #396AA6

monochromatic

#4B1C1A #782D29 #A63E39 #C55C57 #D58884

Accessibility & contrast

On white

6.23

#A63E39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#A63E39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E39

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E39	#FFFFFF	#000000	##FFFFFF
##A63E39	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595338

Deuteranopia (green-blind)

#736936

Tritanopia (blue-blind)

#B6283E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #a63e39;
/* rgb */ color: rgb(166, 62, 57);
/* oklch */ color: oklch(50.7% 0.139 26.0);

Tailwind

colors: {
  custom: {
    50: '#c7786f',
    500: '#a63e39',
    950: '#000000',
  },
}

SCSS

$custom: #a63e39;
$custom-light: #c7786f;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e39",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 57
  },
  "hsl": {
    "h": 2.752,
    "s": 48.879,
    "l": 43.725
  },
  "oklch": {
    "l": 0.50749,
    "c": 0.13851,
    "h": 26
  },
  "luminance": 0.11848
}

Semantic roles & 50–950 ramp

primary

#A63E39

secondary

#7CBCBF

accent

#D2D84F

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140907

muted

#837B7A

Preview Lab

Preview with #A63E39

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

Preview Lab → · Contrast checker → · Palette generator →