#66ADD6#66ADD6

#66ADD6 is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.7% C 0.093 H 235.4°. Best body text is #000000 at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#66ADD6
RGB	rgb(102, 173, 214)
HSL	hsl(202, 58%, 62%)
HSV	hsv(202, 52%, 84%)
CMYK	cmyk(52.3%, 19.2%, 0%, 16.1%)
CIE-LAB	lab(67.70, -10.93, -27.60)
CIE-LCH	lch(67.70, 29.68, 248.40°)
OKLab	oklab(71.69% -0.0529 -0.0768)
OKLCH	oklch(71.69% 0.093 235.4)
XYZ	xyz(32.5562, 37.5643, 69.1403)
Luminance	0.3757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ADD6 #D68F66

analogous

#66D6C7 #66ADD6 #6675D6

triadic

#66ADD6 #D666AD #ADD666

tetradic

#66ADD6 #C766D6 #D68F66 #75D666

square

#66ADD6 #C766D6 #D68F66 #75D666

split-complementary

#66ADD6 #D66675 #D6C766

monochromatic

#297099 #3693C9 #66ADD6 #96C7E3 #C7E1F0

Accessibility & contrast

On white

2.47

#66ADD6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.51

#66ADD6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ADD6

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ADD6	#FFFFFF	#000000	##000000
##66ADD6	1.00	2.47	8.51	8.51
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.51	21.00	1.00	1.00
##000000	8.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AACD8

Deuteranopia (green-blind)

#8AA0D5

Tritanopia (blue-blind)

#20B8BA

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66add6;
/* rgb */ color: rgb(102, 173, 214);
/* oklch */ color: oklch(71.7% 0.093 235.4);

Tailwind

colors: {
  custom: {
    50: '#99c5e2',
    500: '#66add6',
    950: '#000000',
  },
}

SCSS

$custom: #66add6;
$custom-light: #99c5e2;
$custom-dark: #000000;

JSON

{
  "hex": "#66add6",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 214
  },
  "hsl": {
    "h": 201.964,
    "s": 57.732,
    "l": 61.961
  },
  "oklch": {
    "l": 0.71688,
    "c": 0.0933,
    "h": 235.4
  },
  "luminance": 0.37567
}

Semantic roles & 50–950 ramp

primary

#66ADD6

secondary

#E1C6B7

accent

#5D20C5

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1215

muted

#7E8183

Preview Lab

Preview with #66ADD6

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

Preview Lab → · Contrast checker → · Palette generator →