#A63E35#A63E35

#A63E35 is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.7% C 0.139 H 28.0°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#A63E35
RGB	rgb(166, 62, 53)
HSL	hsl(5, 52%, 43%)
HSV	hsv(5, 68%, 65%)
CMYK	cmyk(0%, 62.7%, 68.1%, 34.9%)
CIE-LAB	lab(40.92, 42.30, 28.00)
CIE-LCH	lch(40.92, 50.73, 33.50°)
OKLab	oklab(50.68% 0.123 0.0653)
OKLCH	oklch(50.68% 0.139 28)
XYZ	xyz(18.0929, 11.8117, 4.6946)
Luminance	0.1181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63E35 #359DA6

analogous

#A63564 #A63E35 #A67635

triadic

#A63E35 #35A63E #3E35A6

tetradic

#A63E35 #64A635 #359DA6 #7635A6

square

#A63E35 #64A635 #359DA6 #7635A6

split-complementary

#A63E35 #35A676 #3564A6

monochromatic

#491B17 #782D26 #A63E35 #C75A51 #D6867F

Accessibility & contrast

On white

6.25

#A63E35 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#A63E35 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63E35

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63E35	#FFFFFF	#000000	##FFFFFF
##A63E35	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5233

Deuteranopia (green-blind)

#746932

Tritanopia (blue-blind)

#B6273D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63e35;
/* rgb */ color: rgb(166, 62, 53);
/* oklch */ color: oklch(50.7% 0.139 28.0);

Tailwind

colors: {
  custom: {
    50: '#c7786c',
    500: '#a63e35',
    950: '#000000',
  },
}

SCSS

$custom: #a63e35;
$custom-light: #c7786c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63e35",
  "rgb": {
    "r": 166,
    "g": 62,
    "b": 53
  },
  "hsl": {
    "h": 4.779,
    "s": 51.598,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50683,
    "c": 0.13923,
    "h": 28
  },
  "luminance": 0.11809
}

Semantic roles & 50–950 ramp

primary

#A63E35

secondary

#77BABF

accent

#D0DB4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140907

muted

#837B7A

Preview Lab

Preview with #A63E35

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

Preview Lab → · Contrast checker → · Palette generator →