#66DFF8#66DFF8

#66DFF8 is a very light, moderate cyan. Relative luminance 0.624; OKLCH L 84.4% C 0.113 H 213.3°. Best body text is #000000 at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#66DFF8
RGB	rgb(102, 223, 248)
HSL	hsl(190, 91%, 69%)
HSV	hsv(190, 59%, 97%)
CMYK	cmyk(58.9%, 10.1%, 0%, 2.7%)
CIE-LAB	lab(83.11, -26.82, -22.39)
CIE-LCH	lch(83.11, 34.94, 219.85°)
OKLab	oklab(84.39% -0.0944 -0.0621)
OKLCH	oklch(84.39% 0.113 213.3)
XYZ	xyz(48.8036, 62.3725, 98.2559)
Luminance	0.6238 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DFF8 #F87F66

analogous

#66F8C8 #66DFF8 #6696F8

triadic

#66DFF8 #F866DF #DFF866

tetradic

#66DFF8 #C866F8 #F87F66 #96F866

square

#66DFF8 #C866F8 #F87F66 #96F866

split-complementary

#66DFF8 #F86696 #F8C866

monochromatic

#0AB6DA #2BD3F5 #66DFF8 #A1EBFB #DBF7FD

Accessibility & contrast

On white

1.56

#66DFF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.48

#66DFF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DFF8

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DFF8	#FFFFFF	#000000	##000000
##66DFF8	1.00	1.56	13.48	13.48
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.48	21.00	1.00	1.00
##000000	13.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCD8F9

Deuteranopia (green-blind)

#B6C8F8

Tritanopia (blue-blind)

#00E9E7

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #66dff8;
/* rgb */ color: rgb(102, 223, 248);
/* oklch */ color: oklch(84.4% 0.113 213.3);

Tailwind

colors: {
  custom: {
    50: '#9ee9fa',
    500: '#66dff8',
    950: '#000000',
  },
}

SCSS

$custom: #66dff8;
$custom-light: #9ee9fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66dff8",
  "rgb": {
    "r": 102,
    "g": 223,
    "b": 248
  },
  "hsl": {
    "h": 190.274,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.8439,
    "c": 0.11301,
    "h": 213.3
  },
  "luminance": 0.62377
}

Semantic roles & 50–950 ramp

primary

#66DFF8

secondary

#D24C31

accent

#2700E6

background

#FCFEFF

surface

#F6FDFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DFF8

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

Preview Lab → · Contrast checker → · Palette generator →