#66D7FC#66D7FC

#66D7FC is a very light, moderate cyan. Relative luminance 0.585; OKLCH L 82.7% C 0.115 H 222.4°. Best body text is #000000 at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#66D7FC
RGB	rgb(102, 215, 252)
HSL	hsl(195, 96%, 69%)
HSV	hsv(195, 60%, 99%)
CMYK	cmyk(59.5%, 14.7%, 0%, 1.2%)
CIE-LAB	lab(80.99, -21.70, -27.74)
CIE-LCH	lch(80.99, 35.22, 231.97°)
OKLab	oklab(82.73% -0.0847 -0.0772)
OKLCH	oklch(82.73% 0.115 222.4)
XYZ	xyz(47.3437, 58.4492, 100.8634)
Luminance	0.5845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D7FC #FC8B66

analogous

#66FCD6 #66D7FC #668CFC

triadic

#66D7FC #FC66D7 #D7FC66

tetradic

#66D7FC #D666FC #FC8B66 #8CFC66

square

#66D7FC #D666FC #FC8B66 #8CFC66

split-complementary

#66D7FC #FC668C #FCD666

monochromatic

#04ACE3 #2AC7FB #66D7FC #A2E7FD #DEF6FE

Accessibility & contrast

On white

1.65

#66D7FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.69

#66D7FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D7FC

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D7FC	#FFFFFF	#000000	##000000
##66D7FC	1.00	1.65	12.69	12.69
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.69	21.00	1.00	1.00
##000000	12.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1D2FE

Deuteranopia (green-blind)

#ACC2FC

Tritanopia (blue-blind)

#00E3E3

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #66d7fc;
/* rgb */ color: rgb(102, 215, 252);
/* oklch */ color: oklch(82.7% 0.115 222.4);

Tailwind

colors: {
  custom: {
    50: '#9ee3fd',
    500: '#66d7fc',
    950: '#000000',
  },
}

SCSS

$custom: #66d7fc;
$custom-light: #9ee3fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66d7fc",
  "rgb": {
    "r": 102,
    "g": 215,
    "b": 252
  },
  "hsl": {
    "h": 194.8,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.82734,
    "c": 0.1146,
    "h": 222.4
  },
  "luminance": 0.58454
}

Semantic roles & 50–950 ramp

primary

#66D7FC

secondary

#D65930

accent

#3900E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101517

muted

#808485

Preview Lab

Preview with #66D7FC

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

Preview Lab → · Contrast checker → · Palette generator →