#42B0D0#42B0D0

#42B0D0 is a light, moderate cyan. Relative luminance 0.368; OKLCH L 70.8% C 0.108 H 220.8°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX#42B0D0
RGBrgb(66, 176, 208)
HSLhsl(194, 60%, 54%)
HSVhsv(194, 68%, 82%)
CMYKcmyk(68.3%, 15.4%, 0%, 18.4%)
CIE-LABlab(67.10, -20.98, -25.32)
CIE-LCHlch(67.10, 32.88, 230.36°)
OKLaboklab(70.79% -0.0818 -0.0707)
OKLCHoklch(70.79% 0.108 220.8)
XYZxyz(29.1526, 36.7597, 65.2212)
Luminance0.3676 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B0D0 #D06242
analogous
#42D0A9 #42B0D0 #4269D0
triadic
#42B0D0 #D042B0 #B0D042
tetradic
#42B0D0 #A942D0 #D06242 #69D042
square
#42B0D0 #A942D0 #D06242 #69D042
split-complementary
#42B0D0 #D04269 #D0A942
monochromatic
#1E6579 #2A8EAA #42B0D0 #73C4DC #A4D9E8

Accessibility & contrast

On white

2.51
#42B0D0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.35
#42B0D0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D0
8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B0D0#FFFFFF#000000##000000
##42B0D01.002.518.358.35
#FFFFFF2.511.0021.0021.00
#0000008.3521.001.001.00
##0000008.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DACD2
Deuteranopia (green-blind)
#899DD0
Tritanopia (blue-blind)
#00BABA
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #42b0d0;
/* rgb */ color: rgb(66, 176, 208);
/* oklch */ color: oklch(70.8% 0.108 220.8);
Tailwind
colors: {
  custom: {
    50: '#87c7de',
    500: '#42b0d0',
    950: '#000000',
  },
}
SCSS
$custom: #42b0d0;
$custom-light: #87c7de;
$custom-dark: #000000;
JSON
{
  "hex": "#42b0d0",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 208
  },
  "hsl": {
    "h": 193.521,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.70786,
    "c": 0.10808,
    "h": 220.8
  },
  "luminance": 0.36763
}

Semantic roles & 50–950 ramp

primary
#42B0D0
secondary
#D5A699
accent
#6844E3
background
#F9FCFD
surface
#F1F8FB
border
#CBD1D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #42B0D0

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

Preview Lab → · Contrast checker → · Palette generator →

#42B0D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva