#42AADF#42AADF

#42AADF is a light, vivid cyan. Relative luminance 0.352; OKLCH L 70.0% C 0.122 H 234.7°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX#42AADF
RGBrgb(66, 170, 223)
HSLhsl(200, 71%, 57%)
HSVhsv(200, 70%, 87%)
CMYKcmyk(70.4%, 23.8%, 0%, 12.5%)
CIE-LABlab(65.93, -12.95, -35.39)
CIE-LCHlch(65.93, 37.69, 249.90°)
OKLaboklab(70.05% -0.0704 -0.0995)
OKLCHoklch(70.05% 0.122 234.7)
XYZxyz(29.9355, 35.2320, 75.0205)
Luminance0.3523 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42AADF #DF7742
analogous
#42DFC6 #42AADF #425CDF
triadic
#42AADF #DF42AA #AADF42
tetradic
#42AADF #C642DF #DF7742 #5CDF42
square
#42AADF #C642DF #DF7742 #5CDF42
split-complementary
#42AADF #DF425C #DFC642
monochromatic
#18678E #218CC3 #42AADF #76C2E8 #ABD9F1

Accessibility & contrast

On white

2.61
#42AADF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.05
#42AADF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AADF
8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42AADF#FFFFFF#000000##000000
##42AADF1.002.618.058.05
#FFFFFF2.611.0021.0021.00
#0000008.0521.001.001.00
##0000008.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#90A9E1
Deuteranopia (green-blind)
#7B99DE
Tritanopia (blue-blind)
#00B8BC
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #42aadf;
/* rgb */ color: rgb(66, 170, 223);
/* oklch */ color: oklch(70.0% 0.122 234.7);
Tailwind
colors: {
  custom: {
    50: '#89c3e9',
    500: '#42aadf',
    950: '#000000',
  },
}
SCSS
$custom: #42aadf;
$custom-light: #89c3e9;
$custom-dark: #000000;
JSON
{
  "hex": "#42aadf",
  "rgb": {
    "r": 66,
    "g": 170,
    "b": 223
  },
  "hsl": {
    "h": 200.255,
    "s": 71.041,
    "l": 56.667
  },
  "oklch": {
    "l": 0.70049,
    "c": 0.12194,
    "h": 234.7
  },
  "luminance": 0.35235
}

Semantic roles & 50–950 ramp

primary
#42AADF
secondary
#DFB49E
accent
#773AEE
background
#F9FBFE
surface
#F1F7FD
border
#CBD0D5
text
#0D1216
muted
#7E8184

Preview Lab

Preview with #42AADF

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

Preview Lab → · Contrast checker → · Palette generator →

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