#66BEF7#66BEF7

#66BEF7 is a light, moderate cyan. Relative luminance 0.464; OKLCH L 76.9% C 0.118 H 239.2°. Best body text is #000000 at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#66BEF7
RGB	rgb(102, 190, 247)
HSL	hsl(204, 90%, 68%)
HSV	hsv(204, 59%, 97%)
CMYK	cmyk(58.7%, 23.1%, 0%, 3.1%)
CIE-LAB	lab(73.78, -10.19, -36.17)
CIE-LCH	lch(73.78, 37.58, 254.26°)
OKLab	oklab(76.93% -0.0604 -0.1013)
OKLCH	oklch(76.93% 0.118 239.2)
XYZ	xyz(40.6752, 46.3633, 94.7831)
Luminance	0.4637 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEF7 #F79F66

analogous

#66F7E7 #66BEF7 #6675F7

triadic

#66BEF7 #F766BE #BEF766

tetradic

#66BEF7 #E766F7 #F79F66 #75F766

square

#66BEF7 #E766F7 #F79F66 #75F766

split-complementary

#66BEF7 #F76675 #F7E766

monochromatic

#0B87D7 #2CA5F4 #66BEF7 #A0D7FA #DAEFFD

Accessibility & contrast

On white

2.04

#66BEF7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.27

#66BEF7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEF7

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEF7	#FFFFFF	#000000	##000000
##66BEF7	1.00	2.04	10.27	10.27
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.27	21.00	1.00	1.00
##000000	10.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4BEFA

Deuteranopia (green-blind)

#90AFF6

Tritanopia (blue-blind)

#00CCD1

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66bef7;
/* rgb */ color: rgb(102, 190, 247);
/* oklch */ color: oklch(76.9% 0.118 239.2);

Tailwind

colors: {
  custom: {
    50: '#9dd1fa',
    500: '#66bef7',
    950: '#000000',
  },
}

SCSS

$custom: #66bef7;
$custom-light: #9dd1fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66bef7",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 247
  },
  "hsl": {
    "h": 203.586,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.76934,
    "c": 0.11796,
    "h": 239.2
  },
  "luminance": 0.46367
}

Semantic roles & 50–950 ramp

primary

#66BEF7

secondary

#F2D8C7

accent

#5A00E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66BEF7

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

Preview Lab → · Contrast checker → · Palette generator →