#42CBEA#42CBEA

#42CBEA is a light, vivid cyan. Relative luminance 0.498; OKLCH L 78.2% C 0.122 H 216.3°. Best body text is #000000 at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#42CBEA
RGB	rgb(66, 203, 234)
HSL	hsl(191, 80%, 59%)
HSV	hsv(191, 72%, 92%)
CMYK	cmyk(71.8%, 13.2%, 0%, 8.2%)
CIE-LAB	lab(75.95, -26.55, -25.92)
CIE-LCH	lch(75.95, 37.11, 224.31°)
OKLab	oklab(78.21% -0.0983 -0.0723)
OKLCH	oklch(78.21% 0.122 216.3)
XYZ	xyz(38.4477, 49.8061, 85.4132)
Luminance	0.4981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42CBEA #EA6142

analogous

#42EAB5 #42CBEA #4277EA

triadic

#42CBEA #EA42CB #CBEA42

tetradic

#42CBEA #B542EA #EA6142 #77EA42

square

#42CBEA #B542EA #EA6142 #77EA42

split-complementary

#42CBEA #EA4277 #EAB542

monochromatic

#1286A0 #18B4D7 #42CBEA #79DAF0 #B0E9F6

Accessibility & contrast

On white

1.92

#42CBEA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.96

#42CBEA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42CBEA

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42CBEA	#FFFFFF	#000000	##000000
##42CBEA	1.00	1.92	10.96	10.96
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.96	21.00	1.00	1.00
##000000	10.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C5EC

Deuteranopia (green-blind)

#9FB4EA

Tritanopia (blue-blind)

#00D6D5

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #42cbea;
/* rgb */ color: rgb(66, 203, 234);
/* oklch */ color: oklch(78.2% 0.122 216.3);

Tailwind

colors: {
  custom: {
    50: '#8ddbf0',
    500: '#42cbea',
    950: '#000000',
  },
}

SCSS

$custom: #42cbea;
$custom-light: #8ddbf0;
$custom-dark: #000000;

JSON

{
  "hex": "#42cbea",
  "rgb": {
    "r": 66,
    "g": 203,
    "b": 234
  },
  "hsl": {
    "h": 191.071,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.78209,
    "c": 0.12202,
    "h": 216.3
  },
  "luminance": 0.49811
}

Semantic roles & 50–950 ramp

primary

#42CBEA

secondary

#E5AFA3

accent

#5631F6

background

#F9FDFE

surface

#F2FBFD

border

#CCD4D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #42CBEA

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

Preview Lab → · Contrast checker → · Palette generator →