#66DBF5#66DBF5

#66DBF5 is a very light, moderate cyan. Relative luminance 0.601; OKLCH L 83.4% C 0.111 H 214.5°. Best body text is #000000 at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#66DBF5
RGB	rgb(102, 219, 245)
HSL	hsl(191, 88%, 68%)
HSV	hsv(191, 58%, 96%)
CMYK	cmyk(58.4%, 10.6%, 0%, 3.9%)
CIE-LAB	lab(81.88, -25.71, -22.67)
CIE-LCH	lch(81.88, 34.27, 221.41°)
OKLab	oklab(83.37% -0.0914 -0.0629)
OKLCH	oklch(83.37% 0.111 214.5)
XYZ	xyz(47.2858, 60.0757, 95.4723)
Luminance	0.6008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DBF5 #F58066

analogous

#66F5C7 #66DBF5 #6693F5

triadic

#66DBF5 #F566DB #DBF566

tetradic

#66DBF5 #C766F5 #F58066 #93F566

square

#66DBF5 #C766F5 #F58066 #93F566

split-complementary

#66DBF5 #F56693 #F5C766

monochromatic

#0EAFD3 #2DCDF1 #66DBF5 #9FE9F9 #D9F6FD

Accessibility & contrast

On white

1.61

#66DBF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.02

#66DBF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DBF5

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DBF5	#FFFFFF	#000000	##000000
##66DBF5	1.00	1.61	13.02	13.02
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.02	21.00	1.00	1.00
##000000	13.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8D5F7

Deuteranopia (green-blind)

#B3C5F5

Tritanopia (blue-blind)

#00E5E3

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dbf5;
/* rgb */ color: rgb(102, 219, 245);
/* oklch */ color: oklch(83.4% 0.111 214.5);

Tailwind

colors: {
  custom: {
    50: '#9ee6f8',
    500: '#66dbf5',
    950: '#000000',
  },
}

SCSS

$custom: #66dbf5;
$custom-light: #9ee6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66dbf5",
  "rgb": {
    "r": 102,
    "g": 219,
    "b": 245
  },
  "hsl": {
    "h": 190.909,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.83369,
    "c": 0.11097,
    "h": 214.5
  },
  "luminance": 0.6008
}

Semantic roles & 50–950 ramp

primary

#66DBF5

secondary

#CE4E31

accent

#2A01E4

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #66DBF5

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

Preview Lab → · Contrast checker → · Palette generator →