#42DDFF#42DDFF

#42DDFF is a very light, vivid cyan. Relative luminance 0.601; OKLCH L 83.2% C 0.133 H 216.1°. Best body text is #000000 at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#42DDFF
RGB	rgb(66, 221, 255)
HSL	hsl(191, 100%, 63%)
HSV	hsv(191, 74%, 100%)
CMYK	cmyk(74.1%, 13.3%, 0%, 0%)
CIE-LAB	lab(81.88, -28.94, -28.04)
CIE-LCH	lch(81.88, 40.30, 224.10°)
OKLab	oklab(83.23% -0.1072 -0.0783)
OKLCH	oklch(83.23% 0.133 216.1)
XYZ	xyz(46.1455, 60.0856, 103.7540)
Luminance	0.6009 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42DDFF #FF6442

analogous

#42FFC3 #42DDFF #427EFF

triadic

#42DDFF #FF42DD #DDFF42

tetradic

#42DDFF #C342FF #FF6442 #7EFF42

square

#42DDFF #C342FF #FF6442 #7EFF42

split-complementary

#42DDFF #FF427E #FFC342

monochromatic

#00A3C7 #05D2FF #42DDFF #7FE8FF #BCF3FF

Accessibility & contrast

On white

1.61

#42DDFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.02

#42DDFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42DDFF

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42DDFF	#FFFFFF	#000000	##000000
##42DDFF	1.00	1.61	13.02	13.02
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.02	21.00	1.00	1.00
##000000	13.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6D6FF

Deuteranopia (green-blind)

#ACC4FF

Tritanopia (blue-blind)

#00E9E8

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #42ddff;
/* rgb */ color: rgb(66, 221, 255);
/* oklch */ color: oklch(83.2% 0.133 216.1);

Tailwind

colors: {
  custom: {
    50: '#91e8ff',
    500: '#42ddff',
    950: '#000000',
  },
}

SCSS

$custom: #42ddff;
$custom-light: #91e8ff;
$custom-dark: #000000;

JSON

{
  "hex": "#42ddff",
  "rgb": {
    "r": 66,
    "g": 221,
    "b": 255
  },
  "hsl": {
    "h": 190.794,
    "s": 100,
    "l": 62.941
  },
  "oklch": {
    "l": 0.83229,
    "c": 0.13277,
    "h": 216.1
  },
  "luminance": 0.60091
}

Semantic roles & 50–950 ramp

primary

#42DDFF

secondary

#C33F22

accent

#2900E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1618

muted

#808486

Preview Lab

Preview with #42DDFF

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

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