#66C6FB#66C6FB

#66C6FB is a light, moderate cyan. Relative luminance 0.502; OKLCH L 78.9% C 0.118 H 235.2°. Best body text is #000000 at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#66C6FB
RGB	rgb(102, 198, 251)
HSL	hsl(201, 95%, 69%)
HSV	hsv(201, 59%, 98%)
CMYK	cmyk(59.4%, 21.1%, 0%, 1.6%)
CIE-LAB	lab(76.18, -13.24, -34.61)
CIE-LCH	lch(76.18, 37.06, 249.07°)
OKLab	oklab(78.89% -0.0674 -0.0968)
OKLCH	oklch(78.89% 0.118 235.2)
XYZ	xyz(43.0795, 50.1738, 98.6623)
Luminance	0.5018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C6FB #FB9B66

analogous

#66FBE5 #66C6FB #667CFB

triadic

#66C6FB #FB66C6 #C6FB66

tetradic

#66C6FB #E566FB #FB9B66 #7CFB66

square

#66C6FB #E566FB #FB9B66 #7CFB66

split-complementary

#66C6FB #FB667C #FBE566

monochromatic

#0693E1 #2AB0F9 #66C6FB #A2DCFD #DDF2FE

Accessibility & contrast

On white

1.90

#66C6FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.04

#66C6FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C6FB

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C6FB	#FFFFFF	#000000	##000000
##66C6FB	1.00	1.90	11.04	11.04
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.04	21.00	1.00	1.00
##000000	11.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADC4FE

Deuteranopia (green-blind)

#98B5FA

Tritanopia (blue-blind)

#00D4D8

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #66c6fb;
/* rgb */ color: rgb(102, 198, 251);
/* oklch */ color: oklch(78.9% 0.118 235.2);

Tailwind

colors: {
  custom: {
    50: '#9dd7fc',
    500: '#66c6fb',
    950: '#000000',
  },
}

SCSS

$custom: #66c6fb;
$custom-light: #9dd7fc;
$custom-dark: #000000;

JSON

{
  "hex": "#66c6fb",
  "rgb": {
    "r": 102,
    "g": 198,
    "b": 251
  },
  "hsl": {
    "h": 201.342,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.78886,
    "c": 0.11798,
    "h": 235.2
  },
  "luminance": 0.50178
}

Semantic roles & 50–950 ramp

primary

#66C6FB

secondary

#D56B30

accent

#5200E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1417

muted

#808385

Preview Lab

Preview with #66C6FB

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

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