#66CFF7#66CFF7

#66CFF7 is a light, moderate cyan. Relative luminance 0.542; OKLCH L 80.7% C 0.112 H 225.7°. Best body text is #000000 at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#66CFF7
RGB	rgb(102, 207, 247)
HSL	hsl(197, 90%, 68%)
HSV	hsv(197, 59%, 97%)
CMYK	cmyk(58.7%, 16.2%, 0%, 3.1%)
CIE-LAB	lab(78.56, -19.10, -28.81)
CIE-LCH	lch(78.56, 34.57, 236.45°)
OKLab	oklab(80.73% -0.0782 -0.0802)
OKLCH	oklch(80.73% 0.112 225.7)
XYZ	xyz(44.5743, 54.1615, 96.0828)
Luminance	0.5417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFF7 #F78E66

analogous

#66F7D7 #66CFF7 #6686F7

triadic

#66CFF7 #F766CF #CFF766

tetradic

#66CFF7 #D766F7 #F78E66 #86F766

square

#66CFF7 #D766F7 #F78E66 #86F766

split-complementary

#66CFF7 #F76686 #F7D766

monochromatic

#0B9FD7 #2CBDF4 #66CFF7 #A0E1FA #DAF3FD

Accessibility & contrast

On white

1.77

#66CFF7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.83

#66CFF7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFF7

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFF7	#FFFFFF	#000000	##000000
##66CFF7	1.00	1.77	11.83	11.83
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.83	21.00	1.00	1.00
##000000	11.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9CBF9

Deuteranopia (green-blind)

#A5BCF7

Tritanopia (blue-blind)

#00DBDC

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66cff7;
/* rgb */ color: rgb(102, 207, 247);
/* oklch */ color: oklch(80.7% 0.112 225.7);

Tailwind

colors: {
  custom: {
    50: '#9dddfa',
    500: '#66cff7',
    950: '#000000',
  },
}

SCSS

$custom: #66cff7;
$custom-light: #9dddfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66cff7",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 247
  },
  "hsl": {
    "h": 196.552,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.80732,
    "c": 0.11203,
    "h": 225.7
  },
  "luminance": 0.54166
}

Semantic roles & 50–950 ramp

primary

#66CFF7

secondary

#D05D31

accent

#3F00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CFF7

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

Preview Lab → · Contrast checker → · Palette generator →