#66AEE2#66AEE2

#66AEE2 is a light, moderate cyan. Relative luminance 0.386; OKLCH L 72.4% C 0.105 H 241.6°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#66AEE2
RGB	rgb(102, 174, 226)
HSL	hsl(205, 68%, 64%)
HSV	hsv(205, 55%, 89%)
CMYK	cmyk(54.9%, 23%, 0%, 11.4%)
CIE-LAB	lab(68.45, -7.90, -33.03)
CIE-LCH	lch(68.45, 33.96, 256.55°)
OKLab	oklab(72.44% -0.05 -0.0924)
OKLCH	oklch(72.44% 0.105 241.6)
XYZ	xyz(34.3380, 38.5849, 77.5749)
Luminance	0.3859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEE2 #E29A66

analogous

#66E2D8 #66AEE2 #6670E2

triadic

#66AEE2 #E266AE #AEE266

tetradic

#66AEE2 #D866E2 #E29A66 #70E266

square

#66AEE2 #D866E2 #E29A66 #70E266

split-complementary

#66AEE2 #E26670 #E2D866

monochromatic

#2172AD #3393D8 #66AEE2 #99C9EC #CDE4F6

Accessibility & contrast

On white

2.41

#66AEE2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#66AEE2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEE2

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEE2	#FFFFFF	#000000	##000000
##66AEE2	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97AEE4

Deuteranopia (green-blind)

#86A1E1

Tritanopia (blue-blind)

#00BBC0

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66aee2;
/* rgb */ color: rgb(102, 174, 226);
/* oklch */ color: oklch(72.4% 0.105 241.6);

Tailwind

colors: {
  custom: {
    50: '#9ac6eb',
    500: '#66aee2',
    950: '#000000',
  },
}

SCSS

$custom: #66aee2;
$custom-light: #9ac6eb;
$custom-dark: #000000;

JSON

{
  "hex": "#66aee2",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 226
  },
  "hsl": {
    "h": 205.161,
    "s": 68.132,
    "l": 64.314
  },
  "oklch": {
    "l": 0.72437,
    "c": 0.10502,
    "h": 241.6
  },
  "luminance": 0.38588
}

Semantic roles & 50–950 ramp

primary

#66AEE2

secondary

#E7CEBC

accent

#6415D0

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66AEE2

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

Preview Lab → · Contrast checker → · Palette generator →