#42C5D5#42C5D5

#42C5D5 is a light, moderate teal. Relative luminance 0.459; OKLCH L 76.0% C 0.113 H 206.8°. Best body text is #000000 at 10.18:1 contrast (WCAG AA passes).

Color values

HEX#42C5D5
RGBrgb(66, 197, 213)
HSLhsl(187, 64%, 55%)
HSVhsv(187, 69%, 84%)
CMYKcmyk(69%, 7.5%, 0%, 16.5%)
CIE-LABlab(73.47, -29.97, -18.34)
CIE-LCHlch(73.47, 35.14, 211.46°)
OKLaboklab(75.98% -0.1008 -0.0509)
OKLCHoklch(75.98% 0.113 206.8)
XYZxyz(34.2181, 45.8909, 69.9923)
Luminance0.4590 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#42C5D5 #D55242
analogous
#42D59C #42C5D5 #427BD5
triadic
#42C5D5 #D542C5 #C5D542
tetradic
#42C5D5 #9C42D5 #D55242 #7BD542
square
#42C5D5 #9C42D5 #D55242 #7BD542
split-complementary
#42C5D5 #D5427B #D59C42
monochromatic
#1C7580 #28A3B2 #42C5D5 #74D4E0 #A6E4EB

Accessibility & contrast

On white

2.06
#42C5D5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.18
#42C5D5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C5D5
10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##42C5D5#FFFFFF#000000##000000
##42C5D51.002.0610.1810.18
#FFFFFF2.061.0021.0021.00
#00000010.1821.001.001.00
##00000010.1821.001.001.00

Color blindness preview

Protanopia (red-blind)
#B5BDD6
Deuteranopia (green-blind)
#9FAED5
Tritanopia (blue-blind)
#00CDCA
Achromatopsia (no color)
#B4B4B4

Design tokens & code

CSS
--color: #42c5d5;
/* rgb */ color: rgb(66, 197, 213);
/* oklch */ color: oklch(76.0% 0.113 206.8);
Tailwind
colors: {
  custom: {
    50: '#8ad7e2',
    500: '#42c5d5',
    950: '#000000',
  },
}
SCSS
$custom: #42c5d5;
$custom-light: #8ad7e2;
$custom-dark: #000000;
JSON
{
  "hex": "#42c5d5",
  "rgb": {
    "r": 66,
    "g": 197,
    "b": 213
  },
  "hsl": {
    "h": 186.531,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.75977,
    "c": 0.11292,
    "h": 206.8
  },
  "luminance": 0.45895
}

Semantic roles & 50–950 ramp

primary
#42C5D5
secondary
#D8A19A
accent
#5341E7
background
#F9FDFD
surface
#F1FAFB
border
#CBD3D4
text
#0D1415
muted
#7E8383

Preview Lab

Preview with #42C5D5

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

Preview Lab → · Contrast checker → · Palette generator →

#42C5D5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva