#66B2DB#66B2DB

#66B2DB is a light, moderate cyan. Relative luminance 0.398; OKLCH L 73.0% C 0.096 H 233.8°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#66B2DB
RGB	rgb(102, 178, 219)
HSL	hsl(201, 62%, 63%)
HSV	hsv(201, 53%, 86%)
CMYK	cmyk(53.4%, 18.7%, 0%, 14.1%)
CIE-LAB	lab(69.31, -12.15, -27.86)
CIE-LCH	lch(69.31, 30.40, 246.44°)
OKLab	oklab(73.03% -0.0568 -0.0776)
OKLCH	oklch(73.03% 0.096 233.8)
XYZ	xyz(34.1813, 39.7771, 72.8806)
Luminance	0.3978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B2DB #DB8F66

analogous

#66DBCA #66B2DB #6677DB

triadic

#66B2DB #DB66B2 #B2DB66

tetradic

#66B2DB #CA66DB #DB8F66 #77DB66

square

#66B2DB #CA66DB #DB8F66 #77DB66

split-complementary

#66B2DB #DB6677 #DBCA66

monochromatic

#2676A1 #3499CF #66B2DB #98CBE7 #C9E4F2

Accessibility & contrast

On white

2.34

#66B2DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#66B2DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B2DB

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B2DB	#FFFFFF	#000000	##000000
##66B2DB	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB0DD

Deuteranopia (green-blind)

#8EA4DA

Tritanopia (blue-blind)

#12BDBF

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66b2db;
/* rgb */ color: rgb(102, 178, 219);
/* oklch */ color: oklch(73.0% 0.096 233.8);

Tailwind

colors: {
  custom: {
    50: '#99c9e6',
    500: '#66b2db',
    950: '#000000',
  },
}

SCSS

$custom: #66b2db;
$custom-light: #99c9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66b2db",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 219
  },
  "hsl": {
    "h": 201.026,
    "s": 61.905,
    "l": 62.941
  },
  "oklch": {
    "l": 0.7303,
    "c": 0.09617,
    "h": 233.8
  },
  "luminance": 0.3978
}

Semantic roles & 50–950 ramp

primary

#66B2DB

secondary

#E3C8B9

accent

#591CCA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #66B2DB

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

Preview Lab → · Contrast checker → · Palette generator →