#66DEF7#66DEF7

#66DEF7 is a very light, moderate cyan. Relative luminance 0.618; OKLCH L 84.1% C 0.112 H 213.5°. Best body text is #000000 at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#66DEF7
RGB	rgb(102, 222, 247)
HSL	hsl(190, 90%, 68%)
HSV	hsv(190, 59%, 97%)
CMYK	cmyk(58.7%, 10.1%, 0%, 3.1%)
CIE-LAB	lab(82.80, -26.61, -22.34)
CIE-LCH	lch(82.80, 34.75, 220.01°)
OKLab	oklab(84.13% -0.0938 -0.0619)
OKLCH	oklch(84.13% 0.112 213.5)
XYZ	xyz(48.3825, 61.7779, 97.3522)
Luminance	0.6178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DEF7 #F77F66

analogous

#66F7C7 #66DEF7 #6695F7

triadic

#66DEF7 #F766DE #DEF766

tetradic

#66DEF7 #C766F7 #F77F66 #95F766

square

#66DEF7 #C766F7 #F77F66 #95F766

split-complementary

#66DEF7 #F76695 #F7C766

monochromatic

#0BB4D7 #2CD1F4 #66DEF7 #A0EBFA #DAF7FD

Accessibility & contrast

On white

1.57

#66DEF7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.36

#66DEF7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DEF7

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DEF7	#FFFFFF	#000000	##000000
##66DEF7	1.00	1.57	13.36	13.36
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.36	21.00	1.00	1.00
##000000	13.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBD7F8

Deuteranopia (green-blind)

#B6C7F7

Tritanopia (blue-blind)

#00E8E6

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #66def7;
/* rgb */ color: rgb(102, 222, 247);
/* oklch */ color: oklch(84.1% 0.112 213.5);

Tailwind

colors: {
  custom: {
    50: '#9ee8f9',
    500: '#66def7',
    950: '#000000',
  },
}

SCSS

$custom: #66def7;
$custom-light: #9ee8f9;
$custom-dark: #000000;

JSON

{
  "hex": "#66def7",
  "rgb": {
    "r": 102,
    "g": 222,
    "b": 247
  },
  "hsl": {
    "h": 190.345,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.84126,
    "c": 0.11239,
    "h": 213.5
  },
  "luminance": 0.61783
}

Semantic roles & 50–950 ramp

primary

#66DEF7

secondary

#D04C31

accent

#2800E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DEF7

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

Preview Lab → · Contrast checker → · Palette generator →