#66BBCD#66BBCD

#66BBCD is a light, moderate cyan. Relative luminance 0.428; OKLCH L 74.5% C 0.086 H 213.0°. Best body text is #000000 at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#66BBCD
RGB	rgb(102, 187, 205)
HSL	hsl(190, 51%, 60%)
HSV	hsv(190, 50%, 80%)
CMYK	cmyk(50.2%, 8.8%, 0%, 19.6%)
CIE-LAB	lab(71.40, -20.86, -17.02)
CIE-LCH	lch(71.40, 26.92, 219.20°)
OKLab	oklab(74.53% -0.0722 -0.047)
OKLCH	oklch(74.53% 0.086 213)
XYZ	xyz(34.2650, 42.7703, 64.1956)
Luminance	0.4277 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BBCD #CD7866

analogous

#66CDAB #66BBCD #6688CD

triadic

#66BBCD #CD66BB #BBCD66

tetradic

#66BBCD #AB66CD #CD7866 #88CD66

square

#66BBCD #AB66CD #CD7866 #88CD66

split-complementary

#66BBCD #CD6688 #CDAB66

monochromatic

#2D7B8B #3DA3B9 #66BBCD #94D0DC #C2E4EB

Accessibility & contrast

On white

2.20

#66BBCD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.55

#66BBCD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBCD

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BBCD	#FFFFFF	#000000	##000000
##66BBCD	1.00	2.20	9.55	9.55
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.55	21.00	1.00	1.00
##000000	9.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB6CE

Deuteranopia (green-blind)

#9DAACD

Tritanopia (blue-blind)

#26C2C0

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #66bbcd;
/* rgb */ color: rgb(102, 187, 205);
/* oklch */ color: oklch(74.5% 0.086 213.0);

Tailwind

colors: {
  custom: {
    50: '#99cfdc',
    500: '#66bbcd',
    950: '#000000',
  },
}

SCSS

$custom: #66bbcd;
$custom-light: #99cfdc;
$custom-dark: #000000;

JSON

{
  "hex": "#66bbcd",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 205
  },
  "hsl": {
    "h": 190.485,
    "s": 50.739,
    "l": 60.196
  },
  "oklch": {
    "l": 0.74531,
    "c": 0.08619,
    "h": 213
  },
  "luminance": 0.42773
}

Semantic roles & 50–950 ramp

primary

#66BBCD

secondary

#DBBBB4

accent

#4227BE

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #66BBCD

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

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