#66BBE7#66BBE7

#66BBE7 is a light, moderate cyan. Relative luminance 0.441; OKLCH L 75.6% C 0.104 H 233.0°. Best body text is #000000 at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#66BBE7
RGB	rgb(102, 187, 231)
HSL	hsl(200, 73%, 65%)
HSV	hsv(200, 56%, 91%)
CMYK	cmyk(55.8%, 19%, 0%, 9.4%)
CIE-LAB	lab(72.32, -13.41, -29.78)
CIE-LCH	lch(72.32, 32.66, 245.76°)
OKLab	oklab(75.57% -0.0625 -0.083)
OKLCH	oklch(75.57% 0.104 233)
XYZ	xyz(37.6682, 44.1315, 82.1190)
Luminance	0.4414 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBE7 #E79266

analogous

#66E7D2 #66BBE7 #667BE7

triadic

#66BBE7 #E766BB #BBE766

tetradic

#66BBE7 #D266E7 #E79266 #7BE766

square

#66BBE7 #D266E7 #E79266 #7BE766

split-complementary

#66BBE7 #E7667B #E7D266

monochromatic

#1D82B6 #31A3DF #66BBE7 #9BD3EF #D0EAF8

Accessibility & contrast

On white

2.14

#66BBE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.83

#66BBE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBE7

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBE7	#FFFFFF	#000000	##000000
##66BBE7	1.00	2.14	9.83	9.83
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.83	21.00	1.00	1.00
##000000	9.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B9E9

Deuteranopia (green-blind)

#94ABE6

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66bbe7;
/* rgb */ color: rgb(102, 187, 231);
/* oklch */ color: oklch(75.6% 0.104 233.0);

Tailwind

colors: {
  custom: {
    50: '#9bcfee',
    500: '#66bbe7',
    950: '#000000',
  },
}

SCSS

$custom: #66bbe7;
$custom-light: #9bcfee;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbe7",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 231
  },
  "hsl": {
    "h": 200.465,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.75567,
    "c": 0.10396,
    "h": 233
  },
  "luminance": 0.44135
}

Semantic roles & 50–950 ramp

primary

#66BBE7

secondary

#EACDBF

accent

#5411D5

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #66BBE7

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

Preview Lab → · Contrast checker → · Palette generator →