#66AEDC#66AEDC

#66AEDC is a light, moderate cyan. Relative luminance 0.383; OKLCH L 72.2% C 0.099 H 238.2°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#66AEDC
RGB	rgb(102, 174, 220)
HSL	hsl(203, 63%, 63%)
HSV	hsv(203, 54%, 86%)
CMYK	cmyk(53.6%, 20.9%, 0%, 13.7%)
CIE-LAB	lab(68.21, -9.70, -30.10)
CIE-LCH	lch(68.21, 31.63, 252.15°)
OKLab	oklab(72.17% -0.052 -0.084)
OKLCH	oklch(72.17% 0.099 238.2)
XYZ	xyz(33.5291, 38.2613, 73.3145)
Luminance	0.3826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEDC #DC9466

analogous

#66DCCF #66AEDC #6673DC

triadic

#66AEDC #DC66AE #AEDC66

tetradic

#66AEDC #CF66DC #DC9466 #73DC66

square

#66AEDC #CF66DC #DC9466 #73DC66

split-complementary

#66AEDC #DC6673 #DCCF66

monochromatic

#2572A2 #3494D1 #66AEDC #98C8E7 #CAE3F3

Accessibility & contrast

On white

2.43

#66AEDC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#66AEDC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEDC

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEDC	#FFFFFF	#000000	##000000
##66AEDC	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ADDE

Deuteranopia (green-blind)

#89A1DB

Tritanopia (blue-blind)

#13BABD

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66aedc;
/* rgb */ color: rgb(102, 174, 220);
/* oklch */ color: oklch(72.2% 0.099 238.2);

Tailwind

colors: {
  custom: {
    50: '#99c6e7',
    500: '#66aedc',
    950: '#000000',
  },
}

SCSS

$custom: #66aedc;
$custom-light: #99c6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#66aedc",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 220
  },
  "hsl": {
    "h": 203.39,
    "s": 62.766,
    "l": 63.137
  },
  "oklch": {
    "l": 0.72172,
    "c": 0.09877,
    "h": 238.2
  },
  "luminance": 0.38264
}

Semantic roles & 50–950 ramp

primary

#66AEDC

secondary

#E4CABA

accent

#5F1BCB

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66AEDC

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

Preview Lab → · Contrast checker → · Palette generator →