#66CAF2#66CAF2

#66CAF2 is a light, moderate cyan. Relative luminance 0.515; OKLCH L 79.4% C 0.109 H 226.8°. Best body text is #000000 at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#66CAF2
RGB	rgb(102, 202, 242)
HSL	hsl(197, 84%, 67%)
HSV	hsv(197, 58%, 95%)
CMYK	cmyk(57.9%, 16.5%, 0%, 5.1%)
CIE-LAB	lab(76.96, -18.00, -28.57)
CIE-LCH	lch(76.96, 33.77, 237.78°)
OKLab	oklab(79.4% -0.0747 -0.0796)
OKLCH	oklch(79.4% 0.109 226.8)
XYZ	xyz(42.6208, 51.4726, 91.6763)
Luminance	0.5148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CAF2 #F28E66

analogous

#66F2D4 #66CAF2 #6684F2

triadic

#66CAF2 #F266CA #CAF266

tetradic

#66CAF2 #D466F2 #F28E66 #84F266

square

#66CAF2 #D466F2 #F28E66 #84F266

split-complementary

#66CAF2 #F26684 #F2D466

monochromatic

#1197CC #2EB6ED #66CAF2 #9EDEF7 #D7F1FC

Accessibility & contrast

On white

1.86

#66CAF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.30

#66CAF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CAF2

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CAF2	#FFFFFF	#000000	##000000
##66CAF2	1.00	1.86	11.30	11.30
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.30	21.00	1.00	1.00
##000000	11.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C6F4

Deuteranopia (green-blind)

#A1B8F2

Tritanopia (blue-blind)

#00D6D7

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66caf2;
/* rgb */ color: rgb(102, 202, 242);
/* oklch */ color: oklch(79.4% 0.109 226.8);

Tailwind

colors: {
  custom: {
    50: '#9ddaf6',
    500: '#66caf2',
    950: '#000000',
  },
}

SCSS

$custom: #66caf2;
$custom-light: #9ddaf6;
$custom-dark: #000000;

JSON

{
  "hex": "#66caf2",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 242
  },
  "hsl": {
    "h": 197.143,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.79403,
    "c": 0.10917,
    "h": 226.8
  },
  "luminance": 0.51477
}

Semantic roles & 50–950 ramp

primary

#66CAF2

secondary

#C95E34

accent

#4405E1

background

#FCFEFF

surface

#F6FBFE

border

#D0D4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #66CAF2

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

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