#66CBFF#66CBFF

#66CBFF is a light, moderate cyan. Relative luminance 0.528; OKLCH L 80.2% C 0.120 H 233.4°. Best body text is #000000 at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#66CBFF
RGB	rgb(102, 203, 255)
HSL	hsl(200, 100%, 70%)
HSV	hsv(200, 60%, 100%)
CMYK	cmyk(60%, 20.4%, 0%, 0%)
CIE-LAB	lab(77.73, -14.66, -34.35)
CIE-LCH	lch(77.73, 37.35, 246.90°)
OKLab	oklab(80.17% -0.0712 -0.0961)
OKLCH	oklch(80.17% 0.12 233.4)
XYZ	xyz(44.8785, 52.7523, 102.4055)
Luminance	0.5276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CBFF #FF9A66

analogous

#66FFE6 #66CBFF #667FFF

triadic

#66CBFF #FF66CB #CBFF66

tetradic

#66CBFF #E666FF #FF9A66 #7FFF66

square

#66CBFF #E666FF #FF9A66 #7FFF66

split-complementary

#66CBFF #FF667F #FFE666

monochromatic

#009BEB #29B6FF #66CBFF #A3E0FF #E0F5FF

Accessibility & contrast

On white

1.82

#66CBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.55

#66CBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CBFF

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CBFF	#FFFFFF	#000000	##000000
##66CBFF	1.00	1.82	11.55	11.55
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.55	21.00	1.00	1.00
##000000	11.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C9FF

Deuteranopia (green-blind)

#9DB9FE

Tritanopia (blue-blind)

#00D9DC

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66cbff;
/* rgb */ color: rgb(102, 203, 255);
/* oklch */ color: oklch(80.2% 0.120 233.4);

Tailwind

colors: {
  custom: {
    50: '#9edaff',
    500: '#66cbff',
    950: '#000000',
  },
}

SCSS

$custom: #66cbff;
$custom-light: #9edaff;
$custom-dark: #000000;

JSON

{
  "hex": "#66cbff",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 255
  },
  "hsl": {
    "h": 200.392,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.80171,
    "c": 0.1196,
    "h": 233.4
  },
  "luminance": 0.52757
}

Semantic roles & 50–950 ramp

primary

#66CBFF

secondary

#DA692F

accent

#4E00E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#101418

muted

#808386

Preview Lab

Preview with #66CBFF

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

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