#66BBDA#66BBDA

#66BBDA is a light, moderate cyan. Relative luminance 0.434; OKLCH L 75.0% C 0.094 H 224.0°. Best body text is #000000 at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#66BBDA
RGB	rgb(102, 187, 218)
HSL	hsl(196, 61%, 63%)
HSV	hsv(196, 53%, 85%)
CMYK	cmyk(53.2%, 14.2%, 0%, 14.5%)
CIE-LAB	lab(71.84, -17.20, -23.44)
CIE-LCH	lch(71.84, 29.07, 233.73°)
OKLab	oklab(75.03% -0.0672 -0.065)
OKLCH	oklch(75.03% 0.094 224)
XYZ	xyz(35.8999, 43.4242, 72.8059)
Luminance	0.4343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBDA #DA8566

analogous

#66DABF #66BBDA #6681DA

triadic

#66BBDA #DA66BB #BBDA66

tetradic

#66BBDA #BF66DA #DA8566 #81DA66

square

#66BBDA #BF66DA #DA8566 #81DA66

split-complementary

#66BBDA #DA6681 #DABF66

monochromatic

#267F9F #35A5CE #66BBDA #97D1E6 #C9E7F2

Accessibility & contrast

On white

2.17

#66BBDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.69

#66BBDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBDA

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBDA	#FFFFFF	#000000	##000000
##66BBDA	1.00	2.17	9.69	9.69
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.69	21.00	1.00	1.00
##000000	9.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB7DC

Deuteranopia (green-blind)

#99ABDA

Tritanopia (blue-blind)

#0BC5C5

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #66bbda;
/* rgb */ color: rgb(102, 187, 218);
/* oklch */ color: oklch(75.0% 0.094 224.0);

Tailwind

colors: {
  custom: {
    50: '#9acfe5',
    500: '#66bbda',
    950: '#000000',
  },
}

SCSS

$custom: #66bbda;
$custom-light: #9acfe5;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbda",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 218
  },
  "hsl": {
    "h": 196.034,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.75032,
    "c": 0.09355,
    "h": 224
  },
  "luminance": 0.43427
}

Semantic roles & 50–950 ramp

primary

#66BBDA

secondary

#E3C4B9

accent

#4B1DC9

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1315

muted

#7E8284

Preview Lab

Preview with #66BBDA

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

Preview Lab → · Contrast checker → · Palette generator →