#66ACE7#66ACE7

#66ACE7 is a light, moderate cyan. Relative luminance 0.381; OKLCH L 72.2% C 0.112 H 245.6°. Best body text is #000000 at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#66ACE7
RGB	rgb(102, 172, 231)
HSL	hsl(207, 73%, 65%)
HSV	hsv(207, 56%, 91%)
CMYK	cmyk(55.8%, 25.5%, 0%, 9.4%)
CIE-LAB	lab(68.09, -5.28, -36.32)
CIE-LCH	lch(68.09, 36.70, 261.73°)
OKLab	oklab(72.22% -0.0462 -0.1018)
OKLCH	oklch(72.22% 0.112 245.6)
XYZ	xyz(34.6506, 38.0963, 81.1131)
Luminance	0.3810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACE7 #E7A166

analogous

#66E7E1 #66ACE7 #666BE7

triadic

#66ACE7 #E766AC #ACE766

tetradic

#66ACE7 #E166E7 #E7A166 #6BE766

square

#66ACE7 #E166E7 #E7A166 #6BE766

split-complementary

#66ACE7 #E7666B #E7E166

monochromatic

#1D70B6 #318FDF #66ACE7 #9BC9EF #D0E5F8

Accessibility & contrast

On white

2.44

#66ACE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.62

#66ACE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACE7

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACE7	#FFFFFF	#000000	##000000
##66ACE7	1.00	2.44	8.62	8.62
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.62	21.00	1.00	1.00
##000000	8.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93ADEA

Deuteranopia (green-blind)

#82A0E6

Tritanopia (blue-blind)

#00BAC0

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66ace7;
/* rgb */ color: rgb(102, 172, 231);
/* oklch */ color: oklch(72.2% 0.112 245.6);

Tailwind

colors: {
  custom: {
    50: '#9ac4ef',
    500: '#66ace7',
    950: '#000000',
  },
}

SCSS

$custom: #66ace7;
$custom-light: #9ac4ef;
$custom-dark: #000000;

JSON

{
  "hex": "#66ace7",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 231
  },
  "hsl": {
    "h": 207.442,
    "s": 72.881,
    "l": 65.294
  },
  "oklch": {
    "l": 0.72222,
    "c": 0.11182,
    "h": 245.6
  },
  "luminance": 0.38099
}

Semantic roles & 50–950 ramp

primary

#66ACE7

secondary

#EAD3BF

accent

#6A11D5

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66ACE7

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

Preview Lab → · Contrast checker → · Palette generator →