#42ACDB#42ACDB

#42ACDB is a light, moderate cyan. Relative luminance 0.358; OKLCH L 70.3% C 0.117 H 231.1°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX#42ACDB
RGBrgb(66, 172, 219)
HSLhsl(198, 68%, 56%)
HSVhsv(198, 70%, 86%)
CMYKcmyk(69.9%, 21.5%, 0%, 14.1%)
CIE-LABlab(66.35, -15.35, -32.54)
CIE-LCHlch(66.35, 35.98, 244.75°)
OKLaboklab(70.33% -0.0737 -0.0913)
OKLCHoklch(70.33% 0.117 231.1)
XYZxyz(29.7804, 35.7744, 72.3398)
Luminance0.3578 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42ACDB #DB7142
analogous
#42DBBD #42ACDB #425FDB
triadic
#42ACDB #DB42AC #ACDB42
tetradic
#42ACDB #BD42DB #DB7142 #5FDB42
square
#42ACDB #BD42DB #DB7142 #5FDB42
split-complementary
#42ACDB #DB425F #DBBD42
monochromatic
#1A6789 #248DBC #42ACDB #75C3E5 #A9D9EF

Accessibility & contrast

On white

2.57
#42ACDB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.16
#42ACDB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACDB
8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42ACDB#FFFFFF#000000##000000
##42ACDB1.002.578.168.16
#FFFFFF2.571.0021.0021.00
#0000008.1621.001.001.00
##0000008.1621.001.001.00

Color blindness preview

Protanopia (red-blind)
#94AADD
Deuteranopia (green-blind)
#7F9BDA
Tritanopia (blue-blind)
#00B9BC
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #42acdb;
/* rgb */ color: rgb(66, 172, 219);
/* oklch */ color: oklch(70.3% 0.117 231.1);
Tailwind
colors: {
  custom: {
    50: '#88c4e6',
    500: '#42acdb',
    950: '#000000',
  },
}
SCSS
$custom: #42acdb;
$custom-light: #88c4e6;
$custom-dark: #000000;
JSON
{
  "hex": "#42acdb",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 219
  },
  "hsl": {
    "h": 198.431,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.70328,
    "c": 0.11738,
    "h": 231.1
  },
  "luminance": 0.35778
}

Semantic roles & 50–950 ramp

primary
#42ACDB
secondary
#DCB09D
accent
#723DEB
background
#F9FCFE
surface
#F1F8FC
border
#CBD1D5
text
#0D1216
muted
#7E8184

Preview Lab

Preview with #42ACDB

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

Preview Lab → · Contrast checker → · Palette generator →

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