#66A3DA#66A3DA

#66A3DA is a light, moderate cyan. Relative luminance 0.341; OKLCH L 69.6% C 0.103 H 247.1°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#66A3DA
RGB	rgb(102, 163, 218)
HSL	hsl(208, 61%, 63%)
HSV	hsv(208, 53%, 85%)
CMYK	cmyk(53.2%, 25.2%, 0%, 14.5%)
CIE-LAB	lab(65.02, -4.23, -33.94)
CIE-LCH	lch(65.02, 34.20, 262.89°)
OKLab	oklab(69.63% -0.0402 -0.095)
OKLCH	oklch(69.63% 0.103 247.1)
XYZ	xyz(31.2271, 34.0786, 71.2483)
Luminance	0.3408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A3DA #DA9D66

analogous

#66DAD7 #66A3DA #6669DA

triadic

#66A3DA #DA66A3 #A3DA66

tetradic

#66A3DA #D766DA #DA9D66 #69DA66

square

#66A3DA #D766DA #DA9D66 #69DA66

split-complementary

#66A3DA #DA6669 #DAD766

monochromatic

#26669F #3585CE #66A3DA #97C1E6 #C9DEF2

Accessibility & contrast

On white

2.69

#66A3DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#66A3DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A3DA

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A3DA	#FFFFFF	#000000	##000000
##66A3DA	1.00	2.69	7.82	7.82
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA4DD

Deuteranopia (green-blind)

#7D99D9

Tritanopia (blue-blind)

#1FB0B6

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #66a3da;
/* rgb */ color: rgb(102, 163, 218);
/* oklch */ color: oklch(69.6% 0.103 247.1);

Tailwind

colors: {
  custom: {
    50: '#99bee5',
    500: '#66a3da',
    950: '#000000',
  },
}

SCSS

$custom: #66a3da;
$custom-light: #99bee5;
$custom-dark: #000000;

JSON

{
  "hex": "#66a3da",
  "rgb": {
    "r": 102,
    "g": 163,
    "b": 218
  },
  "hsl": {
    "h": 208.448,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.69627,
    "c": 0.10317,
    "h": 247.1
  },
  "luminance": 0.34081
}

Semantic roles & 50–950 ramp

primary

#66A3DA

secondary

#E3CDB9

accent

#6E1DC9

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #66A3DA

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

Preview Lab → · Contrast checker → · Palette generator →