#66BBDB#66BBDB

#66BBDB is a light, moderate cyan. Relative luminance 0.435; OKLCH L 75.1% C 0.094 H 224.8°. Best body text is #000000 at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#66BBDB
RGB	rgb(102, 187, 219)
HSL	hsl(196, 62%, 63%)
HSV	hsv(196, 53%, 86%)
CMYK	cmyk(53.4%, 14.6%, 0%, 14.1%)
CIE-LAB	lab(71.88, -16.91, -23.93)
CIE-LCH	lch(71.88, 29.30, 234.75°)
OKLab	oklab(75.07% -0.0669 -0.0664)
OKLCH	oklch(75.07% 0.094 224.8)
XYZ	xyz(36.0311, 43.4767, 73.4972)
Luminance	0.4348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBDB #DB8666

analogous

#66DBC0 #66BBDB #6680DB

triadic

#66BBDB #DB66BB #BBDB66

tetradic

#66BBDB #C066DB #DB8666 #80DB66

square

#66BBDB #C066DB #DB8666 #80DB66

split-complementary

#66BBDB #DB6680 #DBC066

monochromatic

#267FA1 #34A5CF #66BBDB #98D1E7 #C9E7F2

Accessibility & contrast

On white

2.17

#66BBDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.70

#66BBDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBDB

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBDB	#FFFFFF	#000000	##000000
##66BBDB	1.00	2.17	9.70	9.70
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.70	21.00	1.00	1.00
##000000	9.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B7DD

Deuteranopia (green-blind)

#98ABDB

Tritanopia (blue-blind)

#07C5C5

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #66bbdb;
/* rgb */ color: rgb(102, 187, 219);
/* oklch */ color: oklch(75.1% 0.094 224.8);

Tailwind

colors: {
  custom: {
    50: '#9acfe6',
    500: '#66bbdb',
    950: '#000000',
  },
}

SCSS

$custom: #66bbdb;
$custom-light: #9acfe6;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbdb",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 219
  },
  "hsl": {
    "h": 196.41,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.75072,
    "c": 0.09426,
    "h": 224.8
  },
  "luminance": 0.4348
}

Semantic roles & 50–950 ramp

primary

#66BBDB

secondary

#E3C5B9

accent

#4B1CCA

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66BBDB

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

Preview Lab → · Contrast checker → · Palette generator →