#66ADD7#66ADD7

#66ADD7 is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.7% C 0.094 H 236.1°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#66ADD7
RGB	rgb(102, 173, 215)
HSL	hsl(202, 59%, 62%)
HSV	hsv(202, 53%, 84%)
CMYK	cmyk(52.6%, 19.5%, 0%, 15.7%)
CIE-LAB	lab(67.74, -10.63, -28.09)
CIE-LCH	lch(67.74, 30.03, 249.26°)
OKLab	oklab(71.73% -0.0526 -0.0782)
OKLCH	oklch(71.73% 0.094 236.1)
XYZ	xyz(32.6843, 37.6155, 69.8149)
Luminance	0.3762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ADD7 #D79066

analogous

#66D7C9 #66ADD7 #6675D7

triadic

#66ADD7 #D766AD #ADD766

tetradic

#66ADD7 #C966D7 #D79066 #75D766

square

#66ADD7 #C966D7 #D79066 #75D766

split-complementary

#66ADD7 #D76675 #D7C966

monochromatic

#28709A #3593CA #66ADD7 #97C7E4 #C7E1F0

Accessibility & contrast

On white

2.46

#66ADD7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.52

#66ADD7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ADD7

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ADD7	#FFFFFF	#000000	##000000
##66ADD7	1.00	2.46	8.52	8.52
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.52	21.00	1.00	1.00
##000000	8.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AACD9

Deuteranopia (green-blind)

#8AA0D6

Tritanopia (blue-blind)

#1EB8BB

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66add7;
/* rgb */ color: rgb(102, 173, 215);
/* oklch */ color: oklch(71.7% 0.094 236.1);

Tailwind

colors: {
  custom: {
    50: '#99c5e3',
    500: '#66add7',
    950: '#000000',
  },
}

SCSS

$custom: #66add7;
$custom-light: #99c5e3;
$custom-dark: #000000;

JSON

{
  "hex": "#66add7",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 215
  },
  "hsl": {
    "h": 202.301,
    "s": 58.549,
    "l": 62.157
  },
  "oklch": {
    "l": 0.7173,
    "c": 0.09426,
    "h": 236.1
  },
  "luminance": 0.37618
}

Semantic roles & 50–950 ramp

primary

#66ADD7

secondary

#E1C7B8

accent

#5D1FC6

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1215

muted

#7E8183

Preview Lab

Preview with #66ADD7

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

Preview Lab → · Contrast checker → · Palette generator →