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#66DBC4 Color

#66DBC4 is rgb(102, 219, 196) in RGB, hsl(168, 62%, 63%) in HSL, and about cmyk(53%, 0%, 11%, 14%) in CMYK. It has no registered color name of its own — the closest is Turquoise (#40E0D0), clearly related but distinguishable side by side at ΔE 8.31. Black text is the more readable choice on this background.

#66DBC4
HEX#66DBC4
RGBrgb(102, 219, 196)
HSLhsl(168, 62%, 63%)
HSVhsv(168, 53%, 86%)
CMYKcmyk(53%, 0%, 11%, 14%)
OKLCHoklch(81.7% 0.112 178.6)
LABlab(80.23% -38.87 0.73)
LCHlch(80.23% 38.88 178.92)

What #66DBC4 Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #66DBC4, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Turquoise#40E0D0ΔE 8.31Medium Aquamarine#66CDAAΔE 8.58Pearl Aqua#88D8C0ΔE 9.65Medium Turquoise#48D1CCΔE 10.37Middle Blue Green#8DD9CCΔE 12.42Zeal#91E0B7ΔE 13.66

Browse the full index of named colors A-Z or every green in the library.

#66DBC4 Channel Values

How #66DBC4 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 102 · G 219 · B 1968-bit channels as sent to the display
HSLH 168° · S 62% · L 63%Easiest model for building lighter and darker variants
HSVH 168° · S 53% · V 86%Matches the picker in most design tools
CMYKC 53% · M 0% · Y 11% · K 14%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.68:1 vs white · 12.49:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66DBC4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text1.68:1AA normal AA large AAA normal
TextBlack text12.49:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66DBC4 in the contrast checker.

Colors That Go With #66DBC4

Pairings derived from color-wheel relationships. The complementary color sits opposite #66DBC4; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66DBC4
Complementary
#DB667E
Analogous
#66DB89
Analogous
#66B8DB
Triadic
#C466DB
Triadic
#DBC466
Split comp.
#DB66B8
Split comp.
#DB8966

Tints & Shades of #66DBC4

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

#7BE0CC
#8FE5D4
#A4EADC
#B9EFE4
#CDF3EC
#E2F8F4

Shades

#45D3B7
#2DBEA1
#259D85
#1C7865
#145749
#0C322A

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66DBC4.

How #66DBC4 Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#66DBC4
Protanopia#CDCDC4
Protanomaly#ADD3C4
Deuteranopia#BFBFC7
Deuteranomaly#A3CBC6
Tritanopia#6DD8D8
Tritanomaly#6AD9D0
Achromatopsia#C8C8C8

Test a full palette in the color blindness simulator.

Using #66DBC4 in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-66dbc4: #66DBC4;
CSS backgroundbackground-color: #66DBC4;
Tailwind configcolors: { 'color-66dbc4': '#66DBC4' }
SwiftUIColor(red: 0.400, green: 0.859, blue: 0.769)
Android XML<color name="color_66dbc4">#66DBC4</color>
SVG fillfill="#66DBC4"

More Green Colors

#66DBC4 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66DBC4 Frequently Asked Questions

What color is #66DBC4?

#66DBC4 is a light green — rgb(102, 219, 196) in RGB and hsl(168, 62%, 63%) in HSL. It carries no registered color name of its own; the closest named color is Turquoise (#40E0D0), which is clearly related but distinguishable side by side at a CIE76 distance of 8.31.

What is the RGB value of #66DBC4?

#66DBC4 is rgb(102, 219, 196) — red 102, green 219, and blue 196 on the 0-255 scale.

What is the CMYK value of #66DBC4?

#66DBC4 converts to approximately cmyk(53%, 0%, 11%, 14%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66DBC4 be black or white?

Black text is the more readable choice. #66DBC4 scores 1.68:1 against white and 12.49:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66DBC4 as a CSS color keyword?

No. #66DBC4 is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is turquoise (#40E0D0) at a CIE76 distance of 8.31, which is clearly related but distinguishable side by side.

Open #66DBC4 in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every green in the color library, the guide to shades of green, or the full color library.