#66BEEB#66BEEB

#66BEEB is a light, moderate cyan. Relative luminance 0.457; OKLCH L 76.4% C 0.107 H 232.8°. Best body text is #000000 at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#66BEEB
RGB	rgb(102, 190, 235)
HSL	hsl(200, 77%, 66%)
HSV	hsv(200, 57%, 92%)
CMYK	cmyk(56.6%, 19.1%, 0%, 7.8%)
CIE-LAB	lab(73.32, -13.81, -30.41)
CIE-LCH	lch(73.32, 33.40, 245.58°)
OKLab	oklab(76.41% -0.0644 -0.0848)
OKLCH	oklch(76.41% 0.107 232.8)
XYZ	xyz(38.8827, 45.6463, 85.3427)
Luminance	0.4565 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEEB #EB9366

analogous

#66EBD6 #66BEEB #667BEB

triadic

#66BEEB #EB66BE #BEEB66

tetradic

#66BEEB #D666EB #EB9366 #7BEB66

square

#66BEEB #D666EB #EB9366 #7BEB66

split-complementary

#66BEEB #EB667B #EBD666

monochromatic

#1986BE #30A7E4 #66BEEB #9CD5F2 #D2ECF9

Accessibility & contrast

On white

2.07

#66BEEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.13

#66BEEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEEB

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEEB	#FFFFFF	#000000	##000000
##66BEEB	1.00	2.07	10.13	10.13
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.13	21.00	1.00	1.00
##000000	10.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8BCED

Deuteranopia (green-blind)

#95AEEA

Tritanopia (blue-blind)

#00CACD

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66beeb;
/* rgb */ color: rgb(102, 190, 235);
/* oklch */ color: oklch(76.4% 0.107 232.8);

Tailwind

colors: {
  custom: {
    50: '#9bd1f1',
    500: '#66beeb',
    950: '#000000',
  },
}

SCSS

$custom: #66beeb;
$custom-light: #9bd1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#66beeb",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 235
  },
  "hsl": {
    "h": 200.301,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.76411,
    "c": 0.10651,
    "h": 232.8
  },
  "luminance": 0.4565
}

Semantic roles & 50–950 ramp

primary

#66BEEB

secondary

#ECCFC1

accent

#520CD9

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #66BEEB

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

Preview Lab → · Contrast checker → · Palette generator →