#42B6D8#42B6D8

#42B6D8 is a light, moderate cyan. Relative luminance 0.396; OKLCH L 72.5% C 0.113 H 221.2°. Best body text is #000000 at 8.91:1 contrast (WCAG AA passes).

Color values

HEX#42B6D8
RGBrgb(66, 182, 216)
HSLhsl(194, 66%, 55%)
HSVhsv(194, 69%, 85%)
CMYKcmyk(69.4%, 15.7%, 0%, 15.3%)
CIE-LABlab(69.16, -21.56, -26.55)
CIE-LCHlch(69.16, 34.20, 230.93°)
OKLaboklab(72.54% -0.0847 -0.0741)
OKLCHoklch(72.54% 0.113 221.2)
XYZxyz(31.3643, 39.5685, 70.9369)
Luminance0.3957 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B6D8 #D86442
analogous
#42D8AF #42B6D8 #426BD8
triadic
#42B6D8 #D842B6 #B6D842
tetradic
#42B6D8 #AF42D8 #D86442 #6BD842
square
#42B6D8 #AF42D8 #D86442 #6BD842
split-complementary
#42B6D8 #D8426B #D8AF42
monochromatic
#1B6C84 #2696B7 #42B6D8 #75CAE2 #A7DDED

Accessibility & contrast

On white

2.36
#42B6D8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.91
#42B6D8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B6D8
8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B6D8#FFFFFF#000000##000000
##42B6D81.002.368.918.91
#FFFFFF2.361.0021.0021.00
#0000008.9121.001.001.00
##0000008.9121.001.001.00

Color blindness preview

Protanopia (red-blind)
#A2B1DA
Deuteranopia (green-blind)
#8DA2D8
Tritanopia (blue-blind)
#00C1C1
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #42b6d8;
/* rgb */ color: rgb(66, 182, 216);
/* oklch */ color: oklch(72.5% 0.113 221.2);
Tailwind
colors: {
  custom: {
    50: '#89cce4',
    500: '#42b6d8',
    950: '#000000',
  },
}
SCSS
$custom: #42b6d8;
$custom-light: #89cce4;
$custom-dark: #000000;
JSON
{
  "hex": "#42b6d8",
  "rgb": {
    "r": 66,
    "g": 182,
    "b": 216
  },
  "hsl": {
    "h": 193.6,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.7254,
    "c": 0.11259,
    "h": 221.2
  },
  "luminance": 0.39572
}

Semantic roles & 50–950 ramp

primary
#42B6D8
secondary
#DAAA9C
accent
#663FE9
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #42B6D8

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

Preview Lab → · Contrast checker → · Palette generator →

#42B6D8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva