#42B7D6#42B7D6

#42B7D6 is a light, moderate cyan. Relative luminance 0.399; OKLCH L 72.7% C 0.111 H 219.0°. Best body text is #000000 at 8.98:1 contrast (WCAG AA passes).

Color values

HEX#42B7D6
RGBrgb(66, 183, 214)
HSLhsl(193, 64%, 55%)
HSVhsv(193, 69%, 84%)
CMYKcmyk(69.2%, 14.5%, 0%, 16.1%)
CIE-LABlab(69.38, -22.70, -25.12)
CIE-LCHlch(69.38, 33.85, 227.90°)
OKLaboklab(72.69% -0.0865 -0.0701)
OKLCHoklch(72.69% 0.111 219)
XYZxyz(31.3128, 39.8767, 69.6520)
Luminance0.3988 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42B7D6 #D66142
analogous
#42D6AB #42B7D6 #426DD6
triadic
#42B7D6 #D642B7 #B7D642
tetradic
#42B7D6 #AB42D6 #D66142 #6DD642
square
#42B7D6 #AB42D6 #D66142 #6DD642
split-complementary
#42B7D6 #D6426D #D6AB42
monochromatic
#1C6C82 #2796B4 #42B7D6 #74CAE1 #A7DDEC

Accessibility & contrast

On white

2.34
#42B7D6 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.98
#42B7D6 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B7D6
8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42B7D6#FFFFFF#000000##000000
##42B7D61.002.348.988.98
#FFFFFF2.341.0021.0021.00
#0000008.9821.001.001.00
##0000008.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#A4B2D8
Deuteranopia (green-blind)
#8FA3D6
Tritanopia (blue-blind)
#00C1C1
Achromatopsia (no color)
#A9A9A9

Design tokens & code

CSS
--color: #42b7d6;
/* rgb */ color: rgb(66, 183, 214);
/* oklch */ color: oklch(72.7% 0.111 219.0);
Tailwind
colors: {
  custom: {
    50: '#89cce2',
    500: '#42b7d6',
    950: '#000000',
  },
}
SCSS
$custom: #42b7d6;
$custom-light: #89cce2;
$custom-dark: #000000;
JSON
{
  "hex": "#42b7d6",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 214
  },
  "hsl": {
    "h": 192.568,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.72693,
    "c": 0.1113,
    "h": 219
  },
  "luminance": 0.3988
}

Semantic roles & 50–950 ramp

primary
#42B7D6
secondary
#D9A89B
accent
#6340E7
background
#F9FCFD
surface
#F1F9FB
border
#CBD2D4
text
#0D1315
muted
#7E8283

Preview Lab

Preview with #42B7D6

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

Preview Lab → · Contrast checker → · Palette generator →

#42B7D6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva