#66ABFB#66ABFB

#66ABFB is a light, vivid cyan. Relative luminance 0.389; OKLCH L 73.0% C 0.137 H 253.3°. Best body text is #000000 at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#66ABFB
RGB	rgb(102, 171, 251)
HSL	hsl(212, 95%, 69%)
HSV	hsv(212, 59%, 98%)
CMYK	cmyk(59.4%, 31.9%, 0%, 1.6%)
CIE-LAB	lab(68.69, 1.52, -46.29)
CIE-LCH	lch(68.69, 46.31, 271.88°)
OKLab	oklab(72.98% -0.0393 -0.1307)
OKLCH	oklch(72.98% 0.137 253.3)
XYZ	xyz(37.4487, 38.9122, 96.7854)
Luminance	0.3892 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ABFB #FBB666

analogous

#66F5FB #66ABFB #6C66FB

triadic

#66ABFB #FB66AB #ABFB66

tetradic

#66ABFB #FB66F5 #FBB666 #66FB6C

square

#66ABFB #FB66F5 #FBB666 #66FB6C

split-complementary

#66ABFB #FB6C66 #F5FB66

monochromatic

#066BE1 #2A8AF9 #66ABFB #A2CCFD #DDECFE

Accessibility & contrast

On white

2.39

#66ABFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.78

#66ABFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABFB

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ABFB	#FFFFFF	#000000	##000000
##66ABFB	1.00	2.39	8.78	8.78
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.78	21.00	1.00	1.00
##000000	8.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#89AFFE

Deuteranopia (green-blind)

#75A1F9

Tritanopia (blue-blind)

#00BDC8

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66abfb;
/* rgb */ color: rgb(102, 171, 251);
/* oklch */ color: oklch(73.0% 0.137 253.3);

Tailwind

colors: {
  custom: {
    50: '#9dc3fd',
    500: '#66abfb',
    950: '#000000',
  },
}

SCSS

$custom: #66abfb;
$custom-light: #9dc3fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66abfb",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 251
  },
  "hsl": {
    "h": 212.215,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.72978,
    "c": 0.13651,
    "h": 253.3
  },
  "luminance": 0.38916
}

Semantic roles & 50–950 ramp

primary

#66ABFB

secondary

#F4E0C9

accent

#7B00E6

background

#FAFBFF

surface

#F4F7FF

border

#CED0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66ABFB

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

Preview Lab → · Contrast checker → · Palette generator →