#66AEE7#66AEE7

#66AEE7 is a light, moderate cyan. Relative luminance 0.389; OKLCH L 72.7% C 0.110 H 244.0°. Best body text is #000000 at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#66AEE7
RGB	rgb(102, 174, 231)
HSL	hsl(207, 73%, 65%)
HSV	hsv(207, 56%, 91%)
CMYK	cmyk(55.8%, 24.7%, 0%, 9.4%)
CIE-LAB	lab(68.65, -6.38, -35.45)
CIE-LCH	lch(68.65, 36.02, 259.79°)
OKLab	oklab(72.66% -0.0483 -0.0993)
OKLCH	oklch(72.66% 0.11 244)
XYZ	xyz(35.0341, 38.8634, 81.2410)
Luminance	0.3887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AEE7 #E79F66

analogous

#66E7E0 #66AEE7 #666DE7

triadic

#66AEE7 #E766AE #AEE766

tetradic

#66AEE7 #E066E7 #E79F66 #6DE766

square

#66AEE7 #E066E7 #E79F66 #6DE766

split-complementary

#66AEE7 #E7666D #E7E066

monochromatic

#1D72B6 #3192DF #66AEE7 #9BCAEF #D0E6F8

Accessibility & contrast

On white

2.39

#66AEE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.77

#66AEE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AEE7

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AEE7	#FFFFFF	#000000	##000000
##66AEE7	1.00	2.39	8.77	8.77
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.77	21.00	1.00	1.00
##000000	8.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95AFEA

Deuteranopia (green-blind)

#84A2E6

Tritanopia (blue-blind)

#00BCC1

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66aee7;
/* rgb */ color: rgb(102, 174, 231);
/* oklch */ color: oklch(72.7% 0.110 244.0);

Tailwind

colors: {
  custom: {
    50: '#9ac6ef',
    500: '#66aee7',
    950: '#000000',
  },
}

SCSS

$custom: #66aee7;
$custom-light: #9ac6ef;
$custom-dark: #000000;

JSON

{
  "hex": "#66aee7",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 231
  },
  "hsl": {
    "h": 206.512,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.72664,
    "c": 0.11047,
    "h": 244
  },
  "luminance": 0.38866
}

Semantic roles & 50–950 ramp

primary

#66AEE7

secondary

#EAD2BF

accent

#6711D5

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #66AEE7

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

Preview Lab → · Contrast checker → · Palette generator →