#66D6FC#66D6FC

#66D6FC is a very light, moderate cyan. Relative luminance 0.579; OKLCH L 82.5% C 0.115 H 223.2°. Best body text is #000000 at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#66D6FC
RGB	rgb(102, 214, 252)
HSL	hsl(195, 96%, 69%)
HSV	hsv(195, 60%, 99%)
CMYK	cmyk(59.5%, 15.1%, 0%, 1.2%)
CIE-LAB	lab(80.71, -21.20, -28.17)
CIE-LCH	lch(80.71, 35.26, 233.04°)
OKLab	oklab(82.51% -0.0836 -0.0784)
OKLCH	oklch(82.51% 0.115 223.2)
XYZ	xyz(47.0898, 57.9415, 100.7788)
Luminance	0.5795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D6FC #FC8C66

analogous

#66FCD7 #66D6FC #668BFC

triadic

#66D6FC #FC66D6 #D6FC66

tetradic

#66D6FC #D766FC #FC8C66 #8BFC66

square

#66D6FC #D766FC #FC8C66 #8BFC66

split-complementary

#66D6FC #FC668B #FCD766

monochromatic

#04ABE3 #2AC6FB #66D6FC #A2E6FD #DEF6FE

Accessibility & contrast

On white

1.67

#66D6FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.59

#66D6FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D6FC

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D6FC	#FFFFFF	#000000	##000000
##66D6FC	1.00	1.67	12.59	12.59
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.59	21.00	1.00	1.00
##000000	12.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0D1FE

Deuteranopia (green-blind)

#ABC1FC

Tritanopia (blue-blind)

#00E2E2

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #66d6fc;
/* rgb */ color: rgb(102, 214, 252);
/* oklch */ color: oklch(82.5% 0.115 223.2);

Tailwind

colors: {
  custom: {
    50: '#9ee2fd',
    500: '#66d6fc',
    950: '#000000',
  },
}

SCSS

$custom: #66d6fc;
$custom-light: #9ee2fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66d6fc",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 252
  },
  "hsl": {
    "h": 195.2,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.82509,
    "c": 0.11466,
    "h": 223.2
  },
  "luminance": 0.57946
}

Semantic roles & 50–950 ramp

primary

#66D6FC

secondary

#D65A30

accent

#3A00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66D6FC

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

Preview Lab → · Contrast checker → · Palette generator →