#66ABF9#66ABF9

#66ABF9 is a light, vivid cyan. Relative luminance 0.388; OKLCH L 72.9% C 0.134 H 252.7°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#66ABF9
RGB	rgb(102, 171, 249)
HSL	hsl(212, 92%, 69%)
HSV	hsv(212, 59%, 98%)
CMYK	cmyk(59%, 31.3%, 0%, 2.4%)
CIE-LAB	lab(68.60, 0.89, -45.34)
CIE-LCH	lch(68.60, 45.35, 271.12°)
OKLab	oklab(72.88% -0.0398 -0.128)
OKLCH	oklch(72.88% 0.134 252.7)
XYZ	xyz(37.1351, 38.7868, 95.1338)
Luminance	0.3879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ABF9 #F9B466

analogous

#66F4F9 #66ABF9 #6B66F9

triadic

#66ABF9 #F966AB #ABF966

tetradic

#66ABF9 #F966F4 #F9B466 #66F96B

square

#66ABF9 #F966F4 #F9B466 #66F96B

split-complementary

#66ABF9 #F96B66 #F4F966

monochromatic

#096CDC #2B8BF7 #66ABF9 #A1CBFB #DCECFE

Accessibility & contrast

On white

2.40

#66ABF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#66ABF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABF9

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ABF9	#FFFFFF	#000000	##000000
##66ABF9	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AAFFC

Deuteranopia (green-blind)

#77A1F7

Tritanopia (blue-blind)

#00BDC7

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66abf9;
/* rgb */ color: rgb(102, 171, 249);
/* oklch */ color: oklch(72.9% 0.134 252.7);

Tailwind

colors: {
  custom: {
    50: '#9cc3fb',
    500: '#66abf9',
    950: '#000000',
  },
}

SCSS

$custom: #66abf9;
$custom-light: #9cc3fb;
$custom-dark: #000000;

JSON

{
  "hex": "#66abf9",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 249
  },
  "hsl": {
    "h": 211.837,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.72876,
    "c": 0.13404,
    "h": 252.7
  },
  "luminance": 0.3879
}

Semantic roles & 50–950 ramp

primary

#66ABF9

secondary

#F3DFC8

accent

#7A00E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66ABF9

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

Preview Lab → · Contrast checker → · Palette generator →