#42C2EA#42C2EA

#42C2EA is a light, vivid cyan. Relative luminance 0.457; OKLCH L 76.1% C 0.123 H 223.0°. Best body text is #000000 at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#42C2EA
RGB	rgb(66, 194, 234)
HSL	hsl(194, 80%, 59%)
HSV	hsv(194, 72%, 92%)
CMYK	cmyk(71.8%, 17.1%, 0%, 8.2%)
CIE-LAB	lab(73.34, -22.03, -29.93)
CIE-LCH	lch(73.34, 37.16, 233.65°)
OKLab	oklab(76.11% -0.0897 -0.0837)
OKLCH	oklch(76.11% 0.123 223)
XYZ	xyz(36.3837, 45.6781, 84.7252)
Luminance	0.4568 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42C2EA #EA6A42

analogous

#42EABE #42C2EA #426EEA

triadic

#42C2EA #EA42C2 #C2EA42

tetradic

#42C2EA #BE42EA #EA6A42 #6EEA42

square

#42C2EA #BE42EA #EA6A42 #6EEA42

split-complementary

#42C2EA #EA426E #EABE42

monochromatic

#127EA0 #18A9D7 #42C2EA #79D4F0 #B0E6F6

Accessibility & contrast

On white

2.07

#42C2EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.14

#42C2EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42C2EA

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42C2EA	#FFFFFF	#000000	##000000
##42C2EA	1.00	2.07	10.14	10.14
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.14	21.00	1.00	1.00
##000000	10.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBEEC

Deuteranopia (green-blind)

#94ADEA

Tritanopia (blue-blind)

#00CECF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #42c2ea;
/* rgb */ color: rgb(66, 194, 234);
/* oklch */ color: oklch(76.1% 0.123 223.0);

Tailwind

colors: {
  custom: {
    50: '#8cd4f0',
    500: '#42c2ea',
    950: '#000000',
  },
}

SCSS

$custom: #42c2ea;
$custom-light: #8cd4f0;
$custom-dark: #000000;

JSON

{
  "hex": "#42c2ea",
  "rgb": {
    "r": 66,
    "g": 194,
    "b": 234
  },
  "hsl": {
    "h": 194.286,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.7611,
    "c": 0.12269,
    "h": 223
  },
  "luminance": 0.45682
}

Semantic roles & 50–950 ramp

primary

#42C2EA

secondary

#E5B3A3

accent

#6031F6

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #42C2EA

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

Preview Lab → · Contrast checker → · Palette generator →