#42B7DE#42B7DE

#42B7DE is a light, moderate cyan. Relative luminance 0.403; OKLCH L 73.0% C 0.116 H 224.2°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX#42B7DE
RGBrgb(66, 183, 222)
HSLhsl(195, 70%, 56%)
HSVhsv(195, 70%, 87%)
CMYKcmyk(70.3%, 17.6%, 0%, 12.9%)
CIE-LABlab(69.68, -20.17, -29.04)
CIE-LCHlch(69.68, 35.36, 235.21°)
OKLaboklab(73.03% -0.0835 -0.0812)
OKLCHoklch(73.03% 0.116 224.2)
XYZxyz(32.3597, 40.2955, 75.1654)
Luminance0.4030 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B7DE #DE6942
analogous
#42DEB7 #42B7DE #4269DE
triadic
#42B7DE #DE42B7 #B7DE42
tetradic
#42B7DE #B742DE #DE6942 #69DE42
square
#42B7DE #B742DE #DE6942 #69DE42
split-complementary
#42B7DE #DE4269 #DEB742
monochromatic
#19708D #2299C1 #42B7DE #76CBE7 #AADFF0

Accessibility & contrast

On white

2.32
#42B7DE on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.06
#42B7DE on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7DE
9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B7DE#FFFFFF#000000##000000
##42B7DE1.002.329.069.06
#FFFFFF2.321.0021.0021.00
#0000009.0621.001.001.00
##0000009.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#A1B3E0
Deuteranopia (green-blind)
#8CA3DE
Tritanopia (blue-blind)
#00C3C4
Achromatopsia (no color)
#AAAAAA

Design tokens & code

CSS
--color: #42b7de;
/* rgb */ color: rgb(66, 183, 222);
/* oklch */ color: oklch(73.0% 0.116 224.2);
Tailwind
colors: {
  custom: {
    50: '#8acce8',
    500: '#42b7de',
    950: '#000000',
  },
}
SCSS
$custom: #42b7de;
$custom-light: #8acce8;
$custom-dark: #000000;
JSON
{
  "hex": "#42b7de",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 222
  },
  "hsl": {
    "h": 195,
    "s": 70.27,
    "l": 56.471
  },
  "oklch": {
    "l": 0.7303,
    "c": 0.11646,
    "h": 224.2
  },
  "luminance": 0.40299
}

Semantic roles & 50–950 ramp

primary
#42B7DE
secondary
#DEAE9E
accent
#673BED
background
#F9FCFE
surface
#F1F8FC
border
#CBD1D5
text
#0D1316
muted
#7E8284

Preview Lab

Preview with #42B7DE

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

Preview Lab → · Contrast checker → · Palette generator →

#42B7DE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva