#66CFF8#66CFF8

#66CFF8 is a light, moderate cyan. Relative luminance 0.542; OKLCH L 80.8% C 0.113 H 226.4°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#66CFF8
RGB	rgb(102, 207, 248)
HSL	hsl(197, 91%, 69%)
HSV	hsv(197, 59%, 97%)
CMYK	cmyk(58.9%, 16.5%, 0%, 2.7%)
CIE-LAB	lab(78.59, -18.81, -29.29)
CIE-LCH	lch(78.59, 34.81, 237.29°)
OKLab	oklab(80.77% -0.0778 -0.0816)
OKLCH	oklch(80.77% 0.113 226.4)
XYZ	xyz(44.7290, 54.2234, 96.8977)
Luminance	0.5423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CFF8 #F88F66

analogous

#66F8D8 #66CFF8 #6686F8

triadic

#66CFF8 #F866CF #CFF866

tetradic

#66CFF8 #D866F8 #F88F66 #86F866

square

#66CFF8 #D866F8 #F88F66 #86F866

split-complementary

#66CFF8 #F86686 #F8D866

monochromatic

#0A9FDA #2BBDF5 #66CFF8 #A1E1FB #DBF4FD

Accessibility & contrast

On white

1.77

#66CFF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.85

#66CFF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CFF8

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CFF8	#FFFFFF	#000000	##000000
##66CFF8	1.00	1.77	11.85	11.85
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.85	21.00	1.00	1.00
##000000	11.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9CBFA

Deuteranopia (green-blind)

#A4BCF8

Tritanopia (blue-blind)

#00DBDC

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66cff8;
/* rgb */ color: rgb(102, 207, 248);
/* oklch */ color: oklch(80.8% 0.113 226.4);

Tailwind

colors: {
  custom: {
    50: '#9dddfa',
    500: '#66cff8',
    950: '#000000',
  },
}

SCSS

$custom: #66cff8;
$custom-light: #9dddfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66cff8",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 248
  },
  "hsl": {
    "h": 196.849,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.80773,
    "c": 0.11276,
    "h": 226.4
  },
  "luminance": 0.54228
}

Semantic roles & 50–950 ramp

primary

#66CFF8

secondary

#D25E31

accent

#4000E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CFF8

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

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