#66CEF8#66CEF8

#66CEF8 is a light, moderate cyan. Relative luminance 0.537; OKLCH L 80.5% C 0.113 H 227.2°. Best body text is #000000 at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#66CEF8
RGB	rgb(102, 206, 248)
HSL	hsl(197, 91%, 69%)
HSV	hsv(197, 59%, 97%)
CMYK	cmyk(58.9%, 16.9%, 0%, 2.7%)
CIE-LAB	lab(78.31, -18.30, -29.72)
CIE-LCH	lch(78.31, 34.90, 238.38°)
OKLab	oklab(80.55% -0.0768 -0.0828)
OKLCH	oklch(80.55% 0.113 227.2)
XYZ	xyz(44.4875, 53.7404, 96.8172)
Luminance	0.5374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEF8 #F89066

analogous

#66F8D9 #66CEF8 #6685F8

triadic

#66CEF8 #F866CE #CEF866

tetradic

#66CEF8 #D966F8 #F89066 #85F866

square

#66CEF8 #D966F8 #F89066 #85F866

split-complementary

#66CEF8 #F86685 #F8D966

monochromatic

#0A9EDA #2BBBF5 #66CEF8 #A1E1FB #DBF3FD

Accessibility & contrast

On white

1.79

#66CEF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.75

#66CEF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEF8

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEF8	#FFFFFF	#000000	##000000
##66CEF8	1.00	1.79	11.75	11.75
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.75	21.00	1.00	1.00
##000000	11.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8CAFA

Deuteranopia (green-blind)

#A3BBF8

Tritanopia (blue-blind)

#00DADC

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66cef8;
/* rgb */ color: rgb(102, 206, 248);
/* oklch */ color: oklch(80.5% 0.113 227.2);

Tailwind

colors: {
  custom: {
    50: '#9dddfa',
    500: '#66cef8',
    950: '#000000',
  },
}

SCSS

$custom: #66cef8;
$custom-light: #9dddfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66cef8",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 248
  },
  "hsl": {
    "h": 197.26,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.80548,
    "c": 0.11295,
    "h": 227.2
  },
  "luminance": 0.53745
}

Semantic roles & 50–950 ramp

primary

#66CEF8

secondary

#D25F31

accent

#4200E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CEF8

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

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