#42DBFF#42DBFF

#42DBFF is a very light, vivid cyan. Relative luminance 0.590; OKLCH L 82.8% C 0.133 H 217.5°. Best body text is #000000 at 12.81:1 contrast (WCAG AA passes).

Color values

HEX#42DBFF
RGBrgb(66, 219, 255)
HSLhsl(191, 100%, 63%)
HSVhsv(191, 74%, 100%)
CMYKcmyk(74.1%, 14.1%, 0%, 0%)
CIE-LABlab(81.31, -27.96, -28.92)
CIE-LCHlch(81.31, 40.23, 225.96°)
OKLaboklab(82.77% -0.1054 -0.0808)
OKLCHoklch(82.77% 0.133 217.5)
XYZxyz(45.6206, 59.0358, 103.5790)
Luminance0.5904 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42DBFF #FF6642
analogous
#42FFC5 #42DBFF #427CFF
triadic
#42DBFF #FF42DB #DBFF42
tetradic
#42DBFF #C542FF #FF6642 #7CFF42
square
#42DBFF #C542FF #FF6642 #7CFF42
split-complementary
#42DBFF #FF427C #FFC542
monochromatic
#00A1C7 #05CFFF #42DBFF #7FE7FF #BCF2FF

Accessibility & contrast

On white

1.64
#42DBFF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.81
#42DBFF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42DBFF
12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42DBFF#FFFFFF#000000##000000
##42DBFF1.001.6412.8112.81
#FFFFFF1.641.0021.0021.00
#00000012.8121.001.001.00
##00000012.8121.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4D5FF
Deuteranopia (green-blind)
#AAC2FF
Tritanopia (blue-blind)
#00E7E6
Achromatopsia (no color)
#CACACA

Design tokens & code

CSS
--color: #42dbff;
/* rgb */ color: rgb(66, 219, 255);
/* oklch */ color: oklch(82.8% 0.133 217.5);
Tailwind
colors: {
  custom: {
    50: '#90e6ff',
    500: '#42dbff',
    950: '#000000',
  },
}
SCSS
$custom: #42dbff;
$custom-light: #90e6ff;
$custom-dark: #000000;
JSON
{
  "hex": "#42dbff",
  "rgb": {
    "r": 66,
    "g": 219,
    "b": 255
  },
  "hsl": {
    "h": 191.429,
    "s": 100,
    "l": 62.941
  },
  "oklch": {
    "l": 0.82768,
    "c": 0.13279,
    "h": 217.5
  },
  "luminance": 0.59041
}

Semantic roles & 50–950 ramp

primary
#42DBFF
secondary
#C34122
accent
#2C00E6
background
#FCFEFF
surface
#F5FCFF
border
#CFD5D7
text
#0F1618
muted
#808486

Preview Lab

Preview with #42DBFF

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

Preview Lab → · Contrast checker → · Palette generator →

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