#66CEF2#66CEF2

#66CEF2 is a light, moderate cyan. Relative luminance 0.534; OKLCH L 80.3% C 0.109 H 223.4°. Best body text is #000000 at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#66CEF2
RGB	rgb(102, 206, 242)
HSL	hsl(195, 84%, 67%)
HSV	hsv(195, 58%, 95%)
CMYK	cmyk(57.9%, 14.9%, 0%, 5.1%)
CIE-LAB	lab(78.10, -20.05, -26.84)
CIE-LCH	lch(78.10, 33.50, 233.23°)
OKLab	oklab(80.31% -0.079 -0.0746)
OKLCH	oklch(80.31% 0.109 223.4)
XYZ	xyz(43.5715, 53.3740, 91.9932)
Luminance	0.5338 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEF2 #F28A66

analogous

#66F2D0 #66CEF2 #6688F2

triadic

#66CEF2 #F266CE #CEF266

tetradic

#66CEF2 #D066F2 #F28A66 #88F266

square

#66CEF2 #D066F2 #F28A66 #88F266

split-complementary

#66CEF2 #F26688 #F2D066

monochromatic

#119CCC #2EBCED #66CEF2 #9EE0F7 #D7F2FC

Accessibility & contrast

On white

1.80

#66CEF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.68

#66CEF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEF2

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEF2	#FFFFFF	#000000	##000000
##66CEF2	1.00	1.80	11.68	11.68
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.68	21.00	1.00	1.00
##000000	11.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9CAF4

Deuteranopia (green-blind)

#A5BBF2

Tritanopia (blue-blind)

#00D9D9

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66cef2;
/* rgb */ color: rgb(102, 206, 242);
/* oklch */ color: oklch(80.3% 0.109 223.4);

Tailwind

colors: {
  custom: {
    50: '#9dddf6',
    500: '#66cef2',
    950: '#000000',
  },
}

SCSS

$custom: #66cef2;
$custom-light: #9dddf6;
$custom-dark: #000000;

JSON

{
  "hex": "#66cef2",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 242
  },
  "hsl": {
    "h": 195.429,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.80305,
    "c": 0.10866,
    "h": 223.4
  },
  "luminance": 0.53378
}

Semantic roles & 50–950 ramp

primary

#66CEF2

secondary

#C95A34

accent

#3D05E1

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CEF2

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

Preview Lab → · Contrast checker → · Palette generator →