#66CFFA#66CFFA

#66CFFA is a light, moderate cyan. Relative luminance 0.544; OKLCH L 80.9% C 0.114 H 227.6°. Best body text is #000000 at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#66CFFA
RGB	rgb(102, 207, 250)
HSL	hsl(197, 94%, 69%)
HSV	hsv(197, 59%, 98%)
CMYK	cmyk(59.2%, 17.2%, 0%, 2%)
CIE-LAB	lab(78.66, -18.22, -30.24)
CIE-LCH	lch(78.66, 35.31, 238.93°)
OKLab	oklab(80.85% -0.0771 -0.0843)
OKLCH	oklch(80.85% 0.114 227.6)
XYZ	xyz(45.0409, 54.3482, 98.5405)
Luminance	0.5435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFFA #FA9166

analogous

#66FADB #66CFFA #6685FA

triadic

#66CFFA #FA66CF #CFFA66

tetradic

#66CFFA #DB66FA #FA9166 #85FA66

square

#66CFFA #DB66FA #FA9166 #85FA66

split-complementary

#66CFFA #FA6685 #FADB66

monochromatic

#07A0DE #2BBCF8 #66CFFA #A1E2FC #DDF4FE

Accessibility & contrast

On white

1.77

#66CFFA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.87

#66CFFA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFFA

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFFA	#FFFFFF	#000000	##000000
##66CFFA	1.00	1.77	11.87	11.87
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.87	21.00	1.00	1.00
##000000	11.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8CCFC

Deuteranopia (green-blind)

#A3BCF9

Tritanopia (blue-blind)

#00DBDD

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66cffa;
/* rgb */ color: rgb(102, 207, 250);
/* oklch */ color: oklch(80.9% 0.114 227.6);

Tailwind

colors: {
  custom: {
    50: '#9eddfc',
    500: '#66cffa',
    950: '#000000',
  },
}

SCSS

$custom: #66cffa;
$custom-light: #9eddfc;
$custom-dark: #000000;

JSON

{
  "hex": "#66cffa",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 250
  },
  "hsl": {
    "h": 197.432,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.80854,
    "c": 0.11427,
    "h": 227.6
  },
  "luminance": 0.54353
}

Semantic roles & 50–950 ramp

primary

#66CFFA

secondary

#D46030

accent

#4300E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CFFA

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

Preview Lab → · Contrast checker → · Palette generator →