#66AEDB#66AEDB

#66AEDB is a light, moderate cyan. Relative luminance 0.382; OKLCH L 72.1% C 0.098 H 237.6°. Best body text is #000000 at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#66AEDB
RGB	rgb(102, 174, 219)
HSL	hsl(203, 62%, 63%)
HSV	hsv(203, 53%, 86%)
CMYK	cmyk(53.4%, 20.5%, 0%, 14.1%)
CIE-LAB	lab(68.17, -9.99, -29.61)
CIE-LCH	lch(68.17, 31.25, 251.35°)
OKLab	oklab(72.13% -0.0523 -0.0826)
OKLCH	oklch(72.13% 0.098 237.6)
XYZ	xyz(33.3970, 38.2085, 72.6191)
Luminance	0.3821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEDB #DB9366

analogous

#66DBCE #66AEDB #6673DB

triadic

#66AEDB #DB66AE #AEDB66

tetradic

#66AEDB #CE66DB #DB9366 #73DB66

square

#66AEDB #CE66DB #DB9366 #73DB66

split-complementary

#66AEDB #DB6673 #DBCE66

monochromatic

#2671A1 #3494CF #66AEDB #98C8E7 #C9E2F2

Accessibility & contrast

On white

2.43

#66AEDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.64

#66AEDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEDB

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEDB	#FFFFFF	#000000	##000000
##66AEDB	1.00	2.43	8.64	8.64
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.64	21.00	1.00	1.00
##000000	8.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ADDD

Deuteranopia (green-blind)

#89A1DA

Tritanopia (blue-blind)

#15BABD

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66aedb;
/* rgb */ color: rgb(102, 174, 219);
/* oklch */ color: oklch(72.1% 0.098 237.6);

Tailwind

colors: {
  custom: {
    50: '#99c6e6',
    500: '#66aedb',
    950: '#000000',
  },
}

SCSS

$custom: #66aedb;
$custom-light: #99c6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66aedb",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 219
  },
  "hsl": {
    "h": 203.077,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.72128,
    "c": 0.09777,
    "h": 237.6
  },
  "luminance": 0.38211
}

Semantic roles & 50–950 ramp

primary

#66AEDB

secondary

#E3CAB9

accent

#5F1CCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #66AEDB

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

Preview Lab → · Contrast checker → · Palette generator →