#66ACE8#66ACE8

#66ACE8 is a light, moderate cyan. Relative luminance 0.382; OKLCH L 72.3% C 0.113 H 246.1°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#66ACE8
RGB	rgb(102, 172, 232)
HSL	hsl(208, 74%, 65%)
HSV	hsv(208, 56%, 91%)
CMYK	cmyk(56%, 25.9%, 0%, 9%)
CIE-LAB	lab(68.13, -4.97, -36.80)
CIE-LCH	lch(68.13, 37.13, 262.31°)
OKLab	oklab(72.27% -0.0458 -0.1032)
OKLCH	oklch(72.27% 0.113 246.1)
XYZ	xyz(34.7922, 38.1530, 81.8591)
Luminance	0.3816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ACE8 #E8A266

analogous

#66E8E3 #66ACE8 #666BE8

triadic

#66ACE8 #E866AC #ACE866

tetradic

#66ACE8 #E366E8 #E8A266 #6BE866

square

#66ACE8 #E366E8 #E8A266 #6BE866

split-complementary

#66ACE8 #E8666B #E8E366

monochromatic

#1C70B8 #318FE0 #66ACE8 #9BC9F0 #D0E6F8

Accessibility & contrast

On white

2.43

#66ACE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#66ACE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ACE8

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ACE8	#FFFFFF	#000000	##000000
##66ACE8	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92ADEB

Deuteranopia (green-blind)

#81A0E7

Tritanopia (blue-blind)

#00BAC1

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66ace8;
/* rgb */ color: rgb(102, 172, 232);
/* oklch */ color: oklch(72.3% 0.113 246.1);

Tailwind

colors: {
  custom: {
    50: '#9bc4ef',
    500: '#66ace8',
    950: '#000000',
  },
}

SCSS

$custom: #66ace8;
$custom-light: #9bc4ef;
$custom-dark: #000000;

JSON

{
  "hex": "#66ace8",
  "rgb": {
    "r": 102,
    "g": 172,
    "b": 232
  },
  "hsl": {
    "h": 207.692,
    "s": 73.864,
    "l": 65.49
  },
  "oklch": {
    "l": 0.72269,
    "c": 0.11296,
    "h": 246.1
  },
  "luminance": 0.38156
}

Semantic roles & 50–950 ramp

primary

#66ACE8

secondary

#EBD3BF

accent

#6B10D6

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66ACE8

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

Preview Lab → · Contrast checker → · Palette generator →