#A63540#A63540

#A63540 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.8% C 0.148 H 18.8°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX#A63540
RGBrgb(166, 53, 64)
HSLhsl(354, 52%, 43%)
HSVhsv(354, 68%, 65%)
CMYKcmyk(0%, 68.1%, 61.4%, 34.9%)
CIE-LABlab(39.62, 46.98, 19.65)
CIE-LCHlch(39.62, 50.93, 22.70°)
OKLaboklab(49.78% 0.1399 0.0477)
OKLCHoklch(49.78% 0.148 18.8)
XYZxyz(17.9261, 11.0258, 6.0337)
Luminance0.1102 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A63540 #35A69B
analogous
#A63579 #A63540 #A66235
triadic
#A63540 #40A635 #3540A6
tetradic
#A63540 #79A635 #35A69B #6235A6
square
#A63540 #79A635 #35A69B #6235A6
split-complementary
#A63540 #35A662 #3579A6
monochromatic
#49171C #78262E #A63540 #C7515C #D67F88

Accessibility & contrast

On white

6.55
#A63540 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.20
#A63540 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63540
6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A63540#FFFFFF#000000##FFFFFF
##A635401.006.553.206.55
#FFFFFF6.551.0021.001.00
#0000003.2021.001.0021.00
##FFFFFF6.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#524E40
Deuteranopia (green-blind)
#6F663D
Tritanopia (blue-blind)
#B61B3A
Achromatopsia (no color)
#5D5D5D

Design tokens & code

CSS
--color: #a63540;
/* rgb */ color: rgb(166, 53, 64);
/* oklch */ color: oklch(49.8% 0.148 18.8);
Tailwind
colors: {
  custom: {
    50: '#c77374',
    500: '#a63540',
    950: '#000000',
  },
}
SCSS
$custom: #a63540;
$custom-light: #c77374;
$custom-dark: #000000;
JSON
{
  "hex": "#a63540",
  "rgb": {
    "r": 166,
    "g": 53,
    "b": 64
  },
  "hsl": {
    "h": 354.159,
    "s": 51.598,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49775,
    "c": 0.14781,
    "h": 18.8
  },
  "luminance": 0.11023
}

Semantic roles & 50–950 ramp

primary
#A63540
secondary
#77BFB8
accent
#DBCD4D
background
#FDF7F7
surface
#FAEDED
border
#D3C8C8
text
#140808
muted
#837B7B

Preview Lab

Preview with #A63540

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

Preview Lab → · Contrast checker → · Palette generator →

#A63540 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva