#42A1D8#42A1D8

#42A1D8 is a light, vivid cyan. Relative luminance 0.316; OKLCH L 67.6% C 0.120 H 237.8°. Best body text is #000000 at 7.32:1 contrast (WCAG AA passes).

Color values

HEX#42A1D8
RGBrgb(66, 161, 216)
HSLhsl(202, 66%, 55%)
HSVhsv(202, 69%, 85%)
CMYKcmyk(69.4%, 25.5%, 0%, 15.3%)
CIE-LABlab(63.01, -10.35, -36.06)
CIE-LCHlch(63.01, 37.52, 253.99°)
OKLaboklab(67.63% -0.064 -0.1016)
OKLCHoklch(67.63% 0.12 237.8)
XYZxyz(27.3815, 31.6028, 69.6093)
Luminance0.3161 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42A1D8 #D87942
analogous
#42D8C4 #42A1D8 #4256D8
triadic
#42A1D8 #D842A1 #A1D842
tetradic
#42A1D8 #C442D8 #D87942 #56D842
square
#42A1D8 #C442D8 #D87942 #56D842
split-complementary
#42A1D8 #D84256 #D8C442
monochromatic
#1B5E84 #2682B7 #42A1D8 #75BAE2 #A7D3ED

Accessibility & contrast

On white

2.87
#42A1D8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.32
#42A1D8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A1D8
7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42A1D8#FFFFFF#000000##000000
##42A1D81.002.877.327.32
#FFFFFF2.871.0021.0021.00
#0000007.3221.001.001.00
##0000007.3221.001.001.00

Color blindness preview

Protanopia (red-blind)
#87A1DB
Deuteranopia (green-blind)
#7392D7
Tritanopia (blue-blind)
#00AFB4
Achromatopsia (no color)
#989898

Design tokens & code

CSS
--color: #42a1d8;
/* rgb */ color: rgb(66, 161, 216);
/* oklch */ color: oklch(67.6% 0.120 237.8);
Tailwind
colors: {
  custom: {
    50: '#87bce4',
    500: '#42a1d8',
    950: '#000000',
  },
}
SCSS
$custom: #42a1d8;
$custom-light: #87bce4;
$custom-dark: #000000;
JSON
{
  "hex": "#42a1d8",
  "rgb": {
    "r": 66,
    "g": 161,
    "b": 216
  },
  "hsl": {
    "h": 202,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.67633,
    "c": 0.12002,
    "h": 237.8
  },
  "luminance": 0.31606
}

Semantic roles & 50–950 ramp

primary
#42A1D8
secondary
#DAB39C
accent
#7D3FE9
background
#F9FBFD
surface
#F1F6FB
border
#CBD0D4
text
#0D1215
muted
#7E8183

Preview Lab

Preview with #42A1D8

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

Preview Lab → · Contrast checker → · Palette generator →

#42A1D8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva