#42ACD4#42ACD4

#42ACD4 is a light, moderate cyan. Relative luminance 0.354; OKLCH L 70.0% C 0.112 H 226.9°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX#42ACD4
RGBrgb(66, 172, 212)
HSLhsl(196, 63%, 55%)
HSVhsv(196, 69%, 83%)
CMYKcmyk(68.9%, 18.9%, 0%, 16.9%)
CIE-LABlab(66.07, -17.61, -29.11)
CIE-LCHlch(66.07, 34.02, 238.82°)
OKLaboklab(70.01% -0.0763 -0.0815)
OKLCHoklch(70.01% 0.112 226.9)
XYZxyz(28.8782, 35.4135, 67.5881)
Luminance0.3542 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42ACD4 #D46A42
analogous
#42D4B3 #42ACD4 #4263D4
triadic
#42ACD4 #D442AC #ACD442
tetradic
#42ACD4 #B342D4 #D46A42 #63D442
square
#42ACD4 #B342D4 #D46A42 #63D442
split-complementary
#42ACD4 #D44263 #D4B342
monochromatic
#1D647F #288BB1 #42ACD4 #74C2DF #A6D8EB

Accessibility & contrast

On white

2.60
#42ACD4 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.08
#42ACD4 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACD4
8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42ACD4#FFFFFF#000000##000000
##42ACD41.002.608.088.08
#FFFFFF2.601.0021.0021.00
#0000008.0821.001.001.00
##0000008.0821.001.001.00

Color blindness preview

Protanopia (red-blind)
#97A9D6
Deuteranopia (green-blind)
#829AD4
Tritanopia (blue-blind)
#00B8B9
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #42acd4;
/* rgb */ color: rgb(66, 172, 212);
/* oklch */ color: oklch(70.0% 0.112 226.9);
Tailwind
colors: {
  custom: {
    50: '#88c4e1',
    500: '#42acd4',
    950: '#000000',
  },
}
SCSS
$custom: #42acd4;
$custom-light: #88c4e1;
$custom-dark: #000000;
JSON
{
  "hex": "#42acd4",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 212
  },
  "hsl": {
    "h": 196.438,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.70014,
    "c": 0.11161,
    "h": 226.9
  },
  "luminance": 0.35417
}

Semantic roles & 50–950 ramp

primary
#42ACD4
secondary
#D8AB9A
accent
#6F42E6
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1215
muted
#7E8183

Preview Lab

Preview with #42ACD4

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

Preview Lab → · Contrast checker → · Palette generator →

#42ACD4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva