#42BBD7#42BBD7

#42BBD7 is a light, moderate cyan. Relative luminance 0.416; OKLCH L 73.7% C 0.112 H 216.4°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX#42BBD7
RGBrgb(66, 187, 215)
HSLhsl(191, 65%, 55%)
HSVhsv(191, 69%, 84%)
CMYKcmyk(69.3%, 13%, 0%, 15.7%)
CIE-LABlab(70.60, -24.42, -23.81)
CIE-LCHlch(70.60, 34.10, 224.28°)
OKLaboklab(73.68% -0.0901 -0.0664)
OKLCHoklch(73.68% 0.112 216.4)
XYZxyz(32.2777, 41.6015, 70.6056)
Luminance0.4160 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42BBD7 #D75E42
analogous
#42D7A8 #42BBD7 #4271D7
triadic
#42BBD7 #D742BB #BBD742
tetradic
#42BBD7 #A842D7 #D75E42 #71D742
square
#42BBD7 #A842D7 #D75E42 #71D742
split-complementary
#42BBD7 #D74271 #D7A842
monochromatic
#1C7083 #269BB5 #42BBD7 #75CDE2 #A7DFEC

Accessibility & contrast

On white

2.25
#42BBD7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.32
#42BBD7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42BBD7
9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42BBD7#FFFFFF#000000##000000
##42BBD71.002.259.329.32
#FFFFFF2.251.0021.0021.00
#0000009.3221.001.001.00
##0000009.3221.001.001.00

Color blindness preview

Protanopia (red-blind)
#A8B5D9
Deuteranopia (green-blind)
#93A6D7
Tritanopia (blue-blind)
#00C5C4
Achromatopsia (no color)
#ADADAD

Design tokens & code

CSS
--color: #42bbd7;
/* rgb */ color: rgb(66, 187, 215);
/* oklch */ color: oklch(73.7% 0.112 216.4);
Tailwind
colors: {
  custom: {
    50: '#89cfe3',
    500: '#42bbd7',
    950: '#000000',
  },
}
SCSS
$custom: #42bbd7;
$custom-light: #89cfe3;
$custom-dark: #000000;
JSON
{
  "hex": "#42bbd7",
  "rgb": {
    "r": 66,
    "g": 187,
    "b": 215
  },
  "hsl": {
    "h": 191.275,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.7368,
    "c": 0.11186,
    "h": 216.4
  },
  "luminance": 0.41605
}

Semantic roles & 50–950 ramp

primary
#42BBD7
secondary
#DAA79B
accent
#5F40E8
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1415
muted
#7E8283

Preview Lab

Preview with #42BBD7

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

Preview Lab → · Contrast checker → · Palette generator →

#42BBD7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva