#66BEEE#66BEEE

#66BEEE is a light, moderate cyan. Relative luminance 0.458; OKLCH L 76.5% C 0.109 H 234.5°. Best body text is #000000 at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#66BEEE
RGB	rgb(102, 190, 238)
HSL	hsl(201, 80%, 67%)
HSV	hsv(201, 57%, 93%)
CMYK	cmyk(57.1%, 20.2%, 0%, 6.7%)
CIE-LAB	lab(73.43, -12.91, -31.86)
CIE-LCH	lch(73.43, 34.37, 247.93°)
OKLab	oklab(76.54% -0.0634 -0.089)
OKLCH	oklch(76.54% 0.109 234.5)
XYZ	xyz(39.3197, 45.8211, 87.6446)
Luminance	0.4582 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEEE #EE9666

analogous

#66EEDA #66BEEE #667AEE

triadic

#66BEEE #EE66BE #BEEE66

tetradic

#66BEEE #DA66EE #EE9666 #7AEE66

square

#66BEEE #DA66EE #EE9666 #7AEE66

split-complementary

#66BEEE #EE667A #EEDA66

monochromatic

#1686C4 #2FA7E8 #66BEEE #9DD5F4 #D4EDFA

Accessibility & contrast

On white

2.07

#66BEEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.16

#66BEEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEEE

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEEE	#FFFFFF	#000000	##000000
##66BEEE	1.00	2.07	10.16	10.16
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.16	21.00	1.00	1.00
##000000	10.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7BCF0

Deuteranopia (green-blind)

#94AEED

Tritanopia (blue-blind)

#00CBCE

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66beee;
/* rgb */ color: rgb(102, 190, 238);
/* oklch */ color: oklch(76.5% 0.109 234.5);

Tailwind

colors: {
  custom: {
    50: '#9cd1f3',
    500: '#66beee',
    950: '#000000',
  },
}

SCSS

$custom: #66beee;
$custom-light: #9cd1f3;
$custom-dark: #000000;

JSON

{
  "hex": "#66beee",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 238
  },
  "hsl": {
    "h": 201.176,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.76539,
    "c": 0.10923,
    "h": 234.5
  },
  "luminance": 0.45825
}

Semantic roles & 50–950 ramp

primary

#66BEEE

secondary

#EED1C2

accent

#5409DC

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #66BEEE

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

Preview Lab → · Contrast checker → · Palette generator →