#66CFFC#66CFFC

#66CFFC is a light, moderate cyan. Relative luminance 0.545; OKLCH L 80.9% C 0.116 H 228.7°. Best body text is #000000 at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#66CFFC
RGB	rgb(102, 207, 252)
HSL	hsl(198, 96%, 69%)
HSV	hsv(198, 60%, 99%)
CMYK	cmyk(59.5%, 17.9%, 0%, 1.2%)
CIE-LAB	lab(78.74, -17.63, -31.20)
CIE-LCH	lch(78.74, 35.83, 240.53°)
OKLab	oklab(80.94% -0.0764 -0.087)
OKLCH	oklch(80.94% 0.116 228.7)
XYZ	xyz(45.3562, 54.4743, 100.2009)
Luminance	0.5448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFFC #FC9366

analogous

#66FCDE #66CFFC #6684FC

triadic

#66CFFC #FC66CF #CFFC66

tetradic

#66CFFC #DE66FC #FC9366 #84FC66

square

#66CFFC #DE66FC #FC9366 #84FC66

split-complementary

#66CFFC #FC6684 #FCDE66

monochromatic

#04A0E3 #2ABCFB #66CFFC #A2E2FD #DEF5FE

Accessibility & contrast

On white

1.77

#66CFFC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.90

#66CFFC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFFC

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFFC	#FFFFFF	#000000	##000000
##66CFFC	1.00	1.77	11.90	11.90
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.90	21.00	1.00	1.00
##000000	11.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8CCFE

Deuteranopia (green-blind)

#A3BCFB

Tritanopia (blue-blind)

#00DCDE

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66cffc;
/* rgb */ color: rgb(102, 207, 252);
/* oklch */ color: oklch(80.9% 0.116 228.7);

Tailwind

colors: {
  custom: {
    50: '#9eddfd',
    500: '#66cffc',
    950: '#000000',
  },
}

SCSS

$custom: #66cffc;
$custom-light: #9eddfd;
$custom-dark: #000000;

JSON

{
  "hex": "#66cffc",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 252
  },
  "hsl": {
    "h": 198,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.80937,
    "c": 0.11582,
    "h": 228.7
  },
  "luminance": 0.54479
}

Semantic roles & 50–950 ramp

primary

#66CFFC

secondary

#D66230

accent

#4500E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66CFFC

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

Preview Lab → · Contrast checker → · Palette generator →