#66DCF7#66DCF7

#66DCF7 is a very light, moderate cyan. Relative luminance 0.607; OKLCH L 83.7% C 0.112 H 215.1°. Best body text is #000000 at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#66DCF7
RGB	rgb(102, 220, 247)
HSL	hsl(191, 90%, 68%)
HSV	hsv(191, 59%, 97%)
CMYK	cmyk(58.7%, 10.9%, 0%, 3.1%)
CIE-LAB	lab(82.23, -25.63, -23.20)
CIE-LCH	lch(82.23, 34.57, 222.15°)
OKLab	oklab(83.67% -0.0917 -0.0644)
OKLCH	oklch(83.67% 0.112 215.1)
XYZ	xyz(47.8544, 60.7218, 97.1762)
Luminance	0.6073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DCF7 #F78166

analogous

#66F7C9 #66DCF7 #6693F7

triadic

#66DCF7 #F766DC #DCF766

tetradic

#66DCF7 #C966F7 #F78166 #93F766

square

#66DCF7 #C966F7 #F78166 #93F766

split-complementary

#66DCF7 #F76693 #F7C966

monochromatic

#0BB1D7 #2CCFF4 #66DCF7 #A0E9FA #DAF7FD

Accessibility & contrast

On white

1.60

#66DCF7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.15

#66DCF7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DCF7

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DCF7	#FFFFFF	#000000	##000000
##66DCF7	1.00	1.60	13.15	13.15
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.15	21.00	1.00	1.00
##000000	13.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9D6F9

Deuteranopia (green-blind)

#B3C6F7

Tritanopia (blue-blind)

#00E6E4

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #66dcf7;
/* rgb */ color: rgb(102, 220, 247);
/* oklch */ color: oklch(83.7% 0.112 215.1);

Tailwind

colors: {
  custom: {
    50: '#9ee7f9',
    500: '#66dcf7',
    950: '#000000',
  },
}

SCSS

$custom: #66dcf7;
$custom-light: #9ee7f9;
$custom-dark: #000000;

JSON

{
  "hex": "#66dcf7",
  "rgb": {
    "r": 102,
    "g": 220,
    "b": 247
  },
  "hsl": {
    "h": 191.172,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.83671,
    "c": 0.11205,
    "h": 215.1
  },
  "luminance": 0.60727
}

Semantic roles & 50–950 ramp

primary

#66DCF7

secondary

#D04F31

accent

#2B00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DCF7

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

Preview Lab → · Contrast checker → · Palette generator →