#66CDF7#66CDF7

#66CDF7 is a light, moderate cyan. Relative luminance 0.532; OKLCH L 80.3% C 0.112 H 227.4°. Best body text is #000000 at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#66CDF7
RGB	rgb(102, 205, 247)
HSL	hsl(197, 90%, 68%)
HSV	hsv(197, 59%, 97%)
CMYK	cmyk(58.7%, 17%, 0%, 3.1%)
CIE-LAB	lab(77.99, -18.08, -29.67)
CIE-LCH	lch(77.99, 34.74, 238.65°)
OKLab	oklab(80.28% -0.0761 -0.0827)
OKLCH	oklch(80.28% 0.112 227.4)
XYZ	xyz(44.0928, 53.1985, 95.9223)
Luminance	0.5320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CDF7 #F79066

analogous

#66F7D8 #66CDF7 #6684F7

triadic

#66CDF7 #F766CD #CDF766

tetradic

#66CDF7 #D866F7 #F79066 #84F766

square

#66CDF7 #D866F7 #F79066 #84F766

split-complementary

#66CDF7 #F76684 #F7D866

monochromatic

#0B9CD7 #2CBAF4 #66CDF7 #A0E0FA #DAF3FD

Accessibility & contrast

On white

1.80

#66CDF7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.64

#66CDF7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CDF7

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CDF7	#FFFFFF	#000000	##000000
##66CDF7	1.00	1.80	11.64	11.64
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.64	21.00	1.00	1.00
##000000	11.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7CAF9

Deuteranopia (green-blind)

#A2BAF6

Tritanopia (blue-blind)

#00D9DB

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cdf7;
/* rgb */ color: rgb(102, 205, 247);
/* oklch */ color: oklch(80.3% 0.112 227.4);

Tailwind

colors: {
  custom: {
    50: '#9ddcfa',
    500: '#66cdf7',
    950: '#000000',
  },
}

SCSS

$custom: #66cdf7;
$custom-light: #9ddcfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66cdf7",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 247
  },
  "hsl": {
    "h": 197.379,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.80282,
    "c": 0.11239,
    "h": 227.4
  },
  "luminance": 0.53203
}

Semantic roles & 50–950 ramp

primary

#66CDF7

secondary

#D05F31

accent

#4200E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CDF7

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

Preview Lab → · Contrast checker → · Palette generator →