#A63535#A63535

#A63535 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.6% C 0.149 H 24.3°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#A63535
RGB	rgb(166, 53, 53)
HSL	hsl(0, 52%, 43%)
HSV	hsv(0, 68%, 65%)
CMYK	cmyk(0%, 68.1%, 68.1%, 34.9%)
CIE-LAB	lab(39.43, 46.29, 26.20)
CIE-LCH	lch(39.43, 53.19, 29.51°)
OKLab	oklab(49.57% 0.1355 0.0613)
OKLCH	oklch(49.57% 0.149 24.3)
XYZ	xyz(17.6434, 10.9128, 4.5448)
Luminance	0.1091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63535 #35A6A6

analogous

#A6356D #A63535 #A66D35

triadic

#A63535 #35A635 #3535A6

tetradic

#A63535 #6DA635 #35A6A6 #6D35A6

square

#A63535 #6DA635 #35A6A6 #6D35A6

split-complementary

#A63535 #35A66D #356DA6

monochromatic

#491717 #782626 #A63535 #C75151 #D67F7F

Accessibility & contrast

On white

6.60

#A63535 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A63535 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63535

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63535	#FFFFFF	#000000	##FFFFFF
##A63535	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544D34

Deuteranopia (green-blind)

#706632

Tritanopia (blue-blind)

#B61736

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a63535;
/* rgb */ color: rgb(166, 53, 53);
/* oklch */ color: oklch(49.6% 0.149 24.3);

Tailwind

colors: {
  custom: {
    50: '#c7736c',
    500: '#a63535',
    950: '#000000',
  },
}

SCSS

$custom: #a63535;
$custom-light: #c7736c;
$custom-dark: #000000;

JSON

{
  "hex": "#a63535",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 53
  },
  "hsl": {
    "h": 0,
    "s": 51.598,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4957,
    "c": 0.14874,
    "h": 24.3
  },
  "luminance": 0.1091
}

Semantic roles & 50–950 ramp

primary

#A63535

secondary

#77BFBF

accent

#DBDB4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A63535

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

Preview Lab → · Contrast checker → · Palette generator →