#66ADF2#66ADF2

#66ADF2 is a light, vivid cyan. Relative luminance 0.391; OKLCH L 73.0% C 0.124 H 249.2°. Best body text is #000000 at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#66ADF2
RGB	rgb(102, 173, 242)
HSL	hsl(210, 84%, 67%)
HSV	hsv(210, 58%, 95%)
CMYK	cmyk(57.9%, 28.5%, 0%, 5.1%)
CIE-LAB	lab(68.84, -2.43, -41.16)
CIE-LCH	lch(68.84, 41.23, 266.62°)
OKLab	oklab(72.96% -0.0439 -0.1158)
OKLCH	oklch(72.96% 0.124 249.2)
XYZ	xyz(36.4443, 39.1195, 89.6174)
Luminance	0.3912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ADF2 #F2AB66

analogous

#66F2F1 #66ADF2 #6667F2

triadic

#66ADF2 #F266AD #ADF266

tetradic

#66ADF2 #F166F2 #F2AB66 #67F266

square

#66ADF2 #F166F2 #F2AB66 #67F266

split-complementary

#66ADF2 #F26667 #F2F166

monochromatic

#1170CC #2E8FED #66ADF2 #9ECBF7 #D7E9FC

Accessibility & contrast

On white

2.38

#66ADF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.82

#66ADF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ADF2

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ADF2	#FFFFFF	#000000	##000000
##66ADF2	1.00	2.38	8.82	8.82
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.82	21.00	1.00	1.00
##000000	8.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90B0F5

Deuteranopia (green-blind)

#7DA2F1

Tritanopia (blue-blind)

#00BDC5

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66adf2;
/* rgb */ color: rgb(102, 173, 242);
/* oklch */ color: oklch(73.0% 0.124 249.2);

Tailwind

colors: {
  custom: {
    50: '#9cc5f6',
    500: '#66adf2',
    950: '#000000',
  },
}

SCSS

$custom: #66adf2;
$custom-light: #9cc5f6;
$custom-dark: #000000;

JSON

{
  "hex": "#66adf2",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 242
  },
  "hsl": {
    "h": 209.571,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.72964,
    "c": 0.12387,
    "h": 249.2
  },
  "luminance": 0.39123
}

Semantic roles & 50–950 ramp

primary

#66ADF2

secondary

#F0DAC4

accent

#7105E1

background

#FAFCFF

surface

#F4F8FE

border

#CED1D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66ADF2

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

Preview Lab → · Contrast checker → · Palette generator →