#42D1E6#42D1E6

#42D1E6 is a light, vivid teal. Relative luminance 0.525; OKLCH L 79.5% C 0.121 H 209.3°. Best body text is #000000 at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#42D1E6
RGB	rgb(66, 209, 230)
HSL	hsl(188, 77%, 58%)
HSV	hsv(188, 71%, 90%)
CMYK	cmyk(71.3%, 9.1%, 0%, 9.8%)
CIE-LAB	lab(77.56, -30.70, -21.32)
CIE-LCH	lch(77.56, 37.38, 214.77°)
OKLab	oklab(79.46% -0.1056 -0.0593)
OKLCH	oklch(79.46% 0.121 209.3)
XYZ	xyz(39.3240, 52.4677, 82.9023)
Luminance	0.5247 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D1E6 #E65742

analogous

#42E6A9 #42D1E6 #427FE6

triadic

#42D1E6 #E642D1 #D1E642

tetradic

#42D1E6 #A942E6 #E65742 #7FE642

square

#42D1E6 #A942E6 #E65742 #7FE642

split-complementary

#42D1E6 #E6427F #E6A942

monochromatic

#148899 #1BB8CF #42D1E6 #78DEED #AEEBF4

Accessibility & contrast

On white

1.83

#42D1E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.49

#42D1E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D1E6

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D1E6	#FFFFFF	#000000	##000000
##42D1E6	1.00	1.83	11.49	11.49
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.49	21.00	1.00	1.00
##000000	11.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEC9E7

Deuteranopia (green-blind)

#A7B8E6

Tritanopia (blue-blind)

#00DBD7

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #42d1e6;
/* rgb */ color: rgb(66, 209, 230);
/* oklch */ color: oklch(79.5% 0.121 209.3);

Tailwind

colors: {
  custom: {
    50: '#8ddfee',
    500: '#42d1e6',
    950: '#000000',
  },
}

SCSS

$custom: #42d1e6;
$custom-light: #8ddfee;
$custom-dark: #000000;

JSON

{
  "hex": "#42d1e6",
  "rgb": {
    "r": 66,
    "g": 209,
    "b": 230
  },
  "hsl": {
    "h": 187.683,
    "s": 76.636,
    "l": 58.039
  },
  "oklch": {
    "l": 0.7946,
    "c": 0.12113,
    "h": 209.3
  },
  "luminance": 0.52472
}

Semantic roles & 50–950 ramp

primary

#42D1E6

secondary

#9D3D2F

accent

#4D35F3

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #42D1E6

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

Preview Lab → · Contrast checker → · Palette generator →