#66BEE7#66BEE7

#66BEE7 is a light, moderate cyan. Relative luminance 0.454; OKLCH L 76.2% C 0.103 H 230.3°. Best body text is #000000 at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#66BEE7
RGB	rgb(102, 190, 231)
HSL	hsl(199, 73%, 65%)
HSV	hsv(199, 56%, 91%)
CMYK	cmyk(55.8%, 17.7%, 0%, 9.4%)
CIE-LAB	lab(73.17, -14.99, -28.47)
CIE-LCH	lch(73.17, 32.18, 242.23°)
OKLab	oklab(76.24% -0.0658 -0.0793)
OKLCH	oklch(76.24% 0.103 230.3)
XYZ	xyz(38.3113, 45.4177, 82.3334)
Luminance	0.4542 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BEE7 #E78F66

analogous

#66E7D0 #66BEE7 #667DE7

triadic

#66BEE7 #E766BE #BEE766

tetradic

#66BEE7 #D066E7 #E78F66 #7DE766

square

#66BEE7 #D066E7 #E78F66 #7DE766

split-complementary

#66BEE7 #E7667D #E7D066

monochromatic

#1D85B6 #31A8DF #66BEE7 #9BD4EF #D0EBF8

Accessibility & contrast

On white

2.08

#66BEE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.08

#66BEE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BEE7

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BEE7	#FFFFFF	#000000	##000000
##66BEE7	1.00	2.08	10.08	10.08
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.08	21.00	1.00	1.00
##000000	10.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BBE9

Deuteranopia (green-blind)

#97AEE6

Tritanopia (blue-blind)

#00C9CB

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66bee7;
/* rgb */ color: rgb(102, 190, 231);
/* oklch */ color: oklch(76.2% 0.103 230.3);

Tailwind

colors: {
  custom: {
    50: '#9bd1ee',
    500: '#66bee7',
    950: '#000000',
  },
}

SCSS

$custom: #66bee7;
$custom-light: #9bd1ee;
$custom-dark: #000000;

JSON

{
  "hex": "#66bee7",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 231
  },
  "hsl": {
    "h": 199.07,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.76243,
    "c": 0.10306,
    "h": 230.3
  },
  "luminance": 0.45421
}

Semantic roles & 50–950 ramp

primary

#66BEE7

secondary

#EACCBF

accent

#4F11D5

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #66BEE7

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

Preview Lab → · Contrast checker → · Palette generator →