#66AECC#66AECC

#66AECC is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.5% C 0.084 H 226.9°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#66AECC
RGB	rgb(102, 174, 204)
HSL	hsl(198, 50%, 60%)
HSV	hsv(198, 50%, 80%)
CMYK	cmyk(50%, 14.7%, 0%, 20%)
CIE-LAB	lab(67.62, -14.36, -22.21)
CIE-LCH	lch(67.62, 26.45, 237.11°)
OKLab	oklab(71.5% -0.0577 -0.0616)
OKLCH	oklch(71.5% 0.084 226.9)
XYZ	xyz(31.5106, 37.4540, 62.6839)
Luminance	0.3746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AECC #CC8466

analogous

#66CCB7 #66AECC #667BCC

triadic

#66AECC #CC66AE #AECC66

tetradic

#66AECC #B766CC #CC8466 #7BCC66

square

#66AECC #B766CC #CC8466 #7BCC66

split-complementary

#66AECC #CC667B #CCB766

monochromatic

#2E6F8A #3D94B8 #66AECC #94C6DB #C2DFEB

Accessibility & contrast

On white

2.47

#66AECC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#66AECC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AECC

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AECC	#FFFFFF	#000000	##000000
##66AECC	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EABCE

Deuteranopia (green-blind)

#8FA0CC

Tritanopia (blue-blind)

#2DB7B8

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66aecc;
/* rgb */ color: rgb(102, 174, 204);
/* oklch */ color: oklch(71.5% 0.084 226.9);

Tailwind

colors: {
  custom: {
    50: '#98c6db',
    500: '#66aecc',
    950: '#000000',
  },
}

SCSS

$custom: #66aecc;
$custom-light: #98c6db;
$custom-dark: #000000;

JSON

{
  "hex": "#66aecc",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 204
  },
  "hsl": {
    "h": 197.647,
    "s": 50,
    "l": 60
  },
  "oklch": {
    "l": 0.71501,
    "c": 0.08437,
    "h": 226.9
  },
  "luminance": 0.37457
}

Semantic roles & 50–950 ramp

primary

#66AECC

secondary

#DBBFB3

accent

#774EDA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #66AECC

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

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