#42C6EC#42C6EC

#42C6EC is a light, vivid cyan. Relative luminance 0.476; OKLCH L 77.1% C 0.123 H 221.3°. Best body text is #000000 at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#42C6EC
RGB	rgb(66, 198, 236)
HSL	hsl(193, 82%, 59%)
HSV	hsv(193, 72%, 93%)
CMYK	cmyk(72%, 16.1%, 0%, 7.5%)
CIE-LAB	lab(74.57, -23.43, -29.11)
CIE-LCH	lch(74.57, 37.37, 231.17°)
OKLab	oklab(77.13% -0.0928 -0.0814)
OKLCH	oklch(77.13% 0.123 221.3)
XYZ	xyz(37.5749, 47.5981, 86.5477)
Luminance	0.4760 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C6EC #EC6842

analogous

#42ECBD #42C6EC #4271EC

triadic

#42C6EC #EC42C6 #C6EC42

tetradic

#42C6EC #BD42EC #EC6842 #71EC42

square

#42C6EC #BD42EC #EC6842 #71EC42

split-complementary

#42C6EC #EC4271 #ECBD42

monochromatic

#1082A3 #16AFDB #42C6EC #7AD7F2 #B1E8F7

Accessibility & contrast

On white

2.00

#42C6EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.52

#42C6EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C6EC

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C6EC	#FFFFFF	#000000	##000000
##42C6EC	1.00	2.00	10.52	10.52
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.52	21.00	1.00	1.00
##000000	10.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFC1EE

Deuteranopia (green-blind)

#98B0EC

Tritanopia (blue-blind)

#00D2D2

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #42c6ec;
/* rgb */ color: rgb(66, 198, 236);
/* oklch */ color: oklch(77.1% 0.123 221.3);

Tailwind

colors: {
  custom: {
    50: '#8cd7f2',
    500: '#42c6ec',
    950: '#000000',
  },
}

SCSS

$custom: #42c6ec;
$custom-light: #8cd7f2;
$custom-dark: #000000;

JSON

{
  "hex": "#42c6ec",
  "rgb": {
    "r": 66,
    "g": 198,
    "b": 236
  },
  "hsl": {
    "h": 193.412,
    "s": 81.731,
    "l": 59.216
  },
  "oklch": {
    "l": 0.77125,
    "c": 0.1234,
    "h": 221.3
  },
  "luminance": 0.47603
}

Semantic roles & 50–950 ramp

primary

#42C6EC

secondary

#E6B3A4

accent

#5C30F8

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #42C6EC

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

Preview Lab → · Contrast checker → · Palette generator →