#66AFDB#66AFDB

#66AFDB is a light, moderate cyan. Relative luminance 0.386; OKLCH L 72.4% C 0.097 H 236.7°. Best body text is #000000 at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#66AFDB
RGB	rgb(102, 175, 219)
HSL	hsl(203, 62%, 63%)
HSV	hsv(203, 53%, 86%)
CMYK	cmyk(53.4%, 20.1%, 0%, 14.1%)
CIE-LAB	lab(68.46, -10.54, -29.18)
CIE-LCH	lch(68.46, 31.02, 250.14°)
OKLab	oklab(72.35% -0.0534 -0.0813)
OKLCH	oklch(72.35% 0.097 236.7)
XYZ	xyz(33.5909, 38.5963, 72.6838)
Luminance	0.3860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AFDB #DB9266

analogous

#66DBCC #66AFDB #6674DB

triadic

#66AFDB #DB66AF #AFDB66

tetradic

#66AFDB #CC66DB #DB9266 #74DB66

square

#66AFDB #CC66DB #DB9266 #74DB66

split-complementary

#66AFDB #DB6674 #DBCC66

monochromatic

#2673A1 #3495CF #66AFDB #98C9E7 #C9E3F2

Accessibility & contrast

On white

2.41

#66AFDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.72

#66AFDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AFDB

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AFDB	#FFFFFF	#000000	##000000
##66AFDB	1.00	2.41	8.72	8.72
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.72	21.00	1.00	1.00
##000000	8.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BAEDD

Deuteranopia (green-blind)

#8BA2DA

Tritanopia (blue-blind)

#15BABE

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #66afdb;
/* rgb */ color: rgb(102, 175, 219);
/* oklch */ color: oklch(72.4% 0.097 236.7);

Tailwind

colors: {
  custom: {
    50: '#99c6e6',
    500: '#66afdb',
    950: '#000000',
  },
}

SCSS

$custom: #66afdb;
$custom-light: #99c6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66afdb",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 219
  },
  "hsl": {
    "h": 202.564,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.72353,
    "c": 0.09732,
    "h": 236.7
  },
  "luminance": 0.38599
}

Semantic roles & 50–950 ramp

primary

#66AFDB

secondary

#E3C9B9

accent

#5D1CCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66AFDB

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

Preview Lab → · Contrast checker → · Palette generator →