#42BDE3#42BDE3

#42BDE3 is a light, moderate cyan. Relative luminance 0.431; OKLCH L 74.6% C 0.119 H 222.6°. Best body text is #000000 at 9.62:1 contrast (WCAG AA passes).

Color values

HEX#42BDE3
RGBrgb(66, 189, 227)
HSLhsl(194, 74%, 57%)
HSVhsv(194, 71%, 89%)
CMYKcmyk(70.9%, 16.7%, 0%, 11%)
CIE-LABlab(71.62, -21.68, -28.77)
CIE-LCHlch(71.62, 36.03, 233.00°)
OKLaboklab(74.65% -0.0874 -0.0805)
OKLCHoklch(74.65% 0.119 222.6)
XYZxyz(34.3038, 43.0955, 79.1685)
Luminance0.4310 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42BDE3 #E36842
analogous
#42E3B8 #42BDE3 #426DE3
triadic
#42BDE3 #E342BD #BDE342
tetradic
#42BDE3 #B842E3 #E36842 #6DE342
square
#42BDE3 #B842E3 #E36842 #6DE342
split-complementary
#42BDE3 #E3426D #E3B842
monochromatic
#167795 #1EA1CA #42BDE3 #77D0EB #ADE2F3

Accessibility & contrast

On white

2.18
#42BDE3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.62
#42BDE3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BDE3
9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42BDE3#FFFFFF#000000##000000
##42BDE31.002.189.629.62
#FFFFFF2.181.0021.0021.00
#0000009.6221.001.001.00
##0000009.6221.001.001.00

Color blindness preview

Protanopia (red-blind)
#A7B9E5
Deuteranopia (green-blind)
#91A8E3
Tritanopia (blue-blind)
#00C9C9
Achromatopsia (no color)
#AFAFAF

Design tokens & code

CSS
--color: #42bde3;
/* rgb */ color: rgb(66, 189, 227);
/* oklch */ color: oklch(74.6% 0.119 222.6);
Tailwind
colors: {
  custom: {
    50: '#8bd1ec',
    500: '#42bde3',
    950: '#000000',
  },
}
SCSS
$custom: #42bde3;
$custom-light: #8bd1ec;
$custom-dark: #000000;
JSON
{
  "hex": "#42bde3",
  "rgb": {
    "r": 66,
    "g": 189,
    "b": 227
  },
  "hsl": {
    "h": 194.161,
    "s": 74.194,
    "l": 57.451
  },
  "oklch": {
    "l": 0.74647,
    "c": 0.11883,
    "h": 222.6
  },
  "luminance": 0.43099
}

Semantic roles & 50–950 ramp

primary
#42BDE3
secondary
#E1AFA0
accent
#6337F1
background
#F9FCFE
surface
#F2F9FD
border
#CCD2D5
text
#0D1416
muted
#7E8284

Preview Lab

Preview with #42BDE3

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

Preview Lab → · Contrast checker → · Palette generator →

#42BDE3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva