#66CEF0#66CEF0

#66CEF0 is a light, moderate cyan. Relative luminance 0.533; OKLCH L 80.2% C 0.107 H 222.1°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#66CEF0
RGB	rgb(102, 206, 240)
HSL	hsl(195, 82%, 67%)
HSV	hsv(195, 58%, 94%)
CMYK	cmyk(57.5%, 14.2%, 0%, 5.9%)
CIE-LAB	lab(78.03, -20.63, -25.88)
CIE-LCH	lch(78.03, 33.10, 231.43°)
OKLab	oklab(80.23% -0.0797 -0.0719)
OKLCH	oklch(80.23% 0.107 222.1)
XYZ	xyz(43.2728, 53.2545, 90.4199)
Luminance	0.5326 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEF0 #F08866

analogous

#66F0CD #66CEF0 #6689F0

triadic

#66CEF0 #F066CE #CEF066

tetradic

#66CEF0 #CD66F0 #F08866 #89F066

square

#66CEF0 #CD66F0 #F08866 #89F066

split-complementary

#66CEF0 #F06689 #F0CD66

monochromatic

#149CC8 #2EBCEB #66CEF0 #9EE0F5 #D5F2FB

Accessibility & contrast

On white

1.80

#66CEF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.65

#66CEF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEF0

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEF0	#FFFFFF	#000000	##000000
##66CEF0	1.00	1.80	11.65	11.65
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.65	21.00	1.00	1.00
##000000	11.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC9F2

Deuteranopia (green-blind)

#A6BAF0

Tritanopia (blue-blind)

#00D9D9

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cef0;
/* rgb */ color: rgb(102, 206, 240);
/* oklch */ color: oklch(80.2% 0.107 222.1);

Tailwind

colors: {
  custom: {
    50: '#9dddf5',
    500: '#66cef0',
    950: '#000000',
  },
}

SCSS

$custom: #66cef0;
$custom-light: #9dddf5;
$custom-dark: #000000;

JSON

{
  "hex": "#66cef0",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 240
  },
  "hsl": {
    "h": 194.783,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.80226,
    "c": 0.10735,
    "h": 222.1
  },
  "luminance": 0.53259
}

Semantic roles & 50–950 ramp

primary

#66CEF0

secondary

#C55935

accent

#3C07DF

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CEF0

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

Preview Lab → · Contrast checker → · Palette generator →