#42D8EA#42D8EA

#42D8EA is a light, vivid teal. Relative luminance 0.562; OKLCH L 81.3% C 0.124 H 206.8°. Best body text is #000000 at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#42D8EA
RGB	rgb(66, 216, 234)
HSL	hsl(186, 80%, 59%)
HSV	hsv(186, 72%, 92%)
CMYK	cmyk(71.8%, 7.7%, 0%, 8.2%)
CIE-LAB	lab(79.73, -32.86, -20.16)
CIE-LCH	lch(79.73, 38.56, 211.53°)
OKLab	oklab(81.26% -0.1107 -0.056)
OKLCH	oklch(81.26% 0.124 206.8)
XYZ	xyz(41.6474, 56.2056, 86.4797)
Luminance	0.5621 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D8EA #EA5442

analogous

#42EAA8 #42D8EA #4284EA

triadic

#42D8EA #EA42D8 #D8EA42

tetradic

#42D8EA #A842EA #EA5442 #84EA42

square

#42D8EA #A842EA #EA5442 #84EA42

split-complementary

#42D8EA #EA4284 #EAA842

monochromatic

#1291A0 #18C2D7 #42D8EA #79E3F0 #B0EFF6

Accessibility & contrast

On white

1.72

#42D8EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.24

#42D8EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D8EA

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D8EA	#FFFFFF	#000000	##000000
##42D8EA	1.00	1.72	12.24	12.24
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.24	21.00	1.00	1.00
##000000	12.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6D0EB

Deuteranopia (green-blind)

#AEBEEA

Tritanopia (blue-blind)

#00E1DD

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #42d8ea;
/* rgb */ color: rgb(66, 216, 234);
/* oklch */ color: oklch(81.3% 0.124 206.8);

Tailwind

colors: {
  custom: {
    50: '#8ee4f0',
    500: '#42d8ea',
    950: '#000000',
  },
}

SCSS

$custom: #42d8ea;
$custom-light: #8ee4f0;
$custom-dark: #000000;

JSON

{
  "hex": "#42d8ea",
  "rgb": {
    "r": 66,
    "g": 216,
    "b": 234
  },
  "hsl": {
    "h": 186.429,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.81257,
    "c": 0.12413,
    "h": 206.8
  },
  "luminance": 0.5621
}

Semantic roles & 50–950 ramp

primary

#42D8EA

secondary

#A23A2E

accent

#4631F6

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #42D8EA

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

Preview Lab → · Contrast checker → · Palette generator →