#66ACE6#66ACE6

#66ACE6 is a light, moderate cyan. Relative luminance 0.380; OKLCH L 72.2% C 0.111 H 245.2°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#66ACE6
RGB	rgb(102, 172, 230)
HSL	hsl(207, 72%, 65%)
HSV	hsv(207, 56%, 90%)
CMYK	cmyk(55.7%, 25.2%, 0%, 9.8%)
CIE-LAB	lab(68.05, -5.58, -35.84)
CIE-LCH	lch(68.05, 36.27, 261.14°)
OKLab	oklab(72.18% -0.0465 -0.1004)
OKLCH	oklch(72.18% 0.111 245.2)
XYZ	xyz(34.5098, 38.0400, 80.3714)
Luminance	0.3804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACE6 #E6A066

analogous

#66E6E0 #66ACE6 #666CE6

triadic

#66ACE6 #E666AC #ACE666

tetradic

#66ACE6 #E066E6 #E6A066 #6CE666

square

#66ACE6 #E066E6 #E6A066 #6CE666

split-complementary

#66ACE6 #E6666C #E6E066

monochromatic

#1D70B4 #318FDD #66ACE6 #9BC9EF #CFE5F7

Accessibility & contrast

On white

2.44

#66ACE6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.61

#66ACE6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACE6

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACE6	#FFFFFF	#000000	##000000
##66ACE6	1.00	2.44	8.61	8.61
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.61	21.00	1.00	1.00
##000000	8.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93ADE9

Deuteranopia (green-blind)

#82A0E5

Tritanopia (blue-blind)

#00BAC0

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66ace6;
/* rgb */ color: rgb(102, 172, 230);
/* oklch */ color: oklch(72.2% 0.111 245.2);

Tailwind

colors: {
  custom: {
    50: '#9ac4ee',
    500: '#66ace6',
    950: '#000000',
  },
}

SCSS

$custom: #66ace6;
$custom-light: #9ac4ee;
$custom-dark: #000000;

JSON

{
  "hex": "#66ace6",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 230
  },
  "hsl": {
    "h": 207.188,
    "s": 71.91,
    "l": 65.098
  },
  "oklch": {
    "l": 0.72176,
    "c": 0.11068,
    "h": 245.2
  },
  "luminance": 0.38043
}

Semantic roles & 50–950 ramp

primary

#66ACE6

secondary

#EAD2BE

accent

#6A12D4

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66ACE6

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

Preview Lab → · Contrast checker → · Palette generator →