#66CCFB#66CCFB

#66CCFB is a light, moderate cyan. Relative luminance 0.530; OKLCH L 80.2% C 0.116 H 230.5°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#66CCFB
RGB	rgb(102, 204, 251)
HSL	hsl(199, 95%, 69%)
HSV	hsv(199, 59%, 98%)
CMYK	cmyk(59.4%, 18.7%, 0%, 1.6%)
CIE-LAB	lab(77.86, -16.37, -32.02)
CIE-LCH	lch(77.86, 35.96, 242.91°)
OKLab	oklab(80.22% -0.0736 -0.0894)
OKLCH	oklch(80.22% 0.116 230.5)
XYZ	xyz(44.4782, 52.9712, 99.1286)
Luminance	0.5298 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CCFB #FB9566

analogous

#66FBDF #66CCFB #6682FB

triadic

#66CCFB #FB66CC #CCFB66

tetradic

#66CCFB #DF66FB #FB9566 #82FB66

square

#66CCFB #DF66FB #FB9566 #82FB66

split-complementary

#66CCFB #FB6682 #FBDF66

monochromatic

#069CE1 #2AB8F9 #66CCFB #A2E0FD #DDF4FE

Accessibility & contrast

On white

1.81

#66CCFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.60

#66CCFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCFB

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CCFB	#FFFFFF	#000000	##000000
##66CCFB	1.00	1.81	11.60	11.60
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.60	21.00	1.00	1.00
##000000	11.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C9FD

Deuteranopia (green-blind)

#9FBAFA

Tritanopia (blue-blind)

#00D9DB

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66ccfb;
/* rgb */ color: rgb(102, 204, 251);
/* oklch */ color: oklch(80.2% 0.116 230.5);

Tailwind

colors: {
  custom: {
    50: '#9edbfc',
    500: '#66ccfb',
    950: '#000000',
  },
}

SCSS

$custom: #66ccfb;
$custom-light: #9edbfc;
$custom-dark: #000000;

JSON

{
  "hex": "#66ccfb",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 251
  },
  "hsl": {
    "h": 198.926,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.80224,
    "c": 0.11581,
    "h": 230.5
  },
  "luminance": 0.52976
}

Semantic roles & 50–950 ramp

primary

#66CCFB

secondary

#D56430

accent

#4800E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CCFB

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

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