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#66AEDB Color

#66AEDB is rgb(102, 174, 219) in RGB, hsl(203, 62%, 63%) in HSL, and about cmyk(53%, 21%, 0%, 14%) in CMYK. It has no registered color name of its own — the closest is Iceberg (#71A6D2), clearly related but distinguishable side by side at ΔE 5.45. Black text is the more readable choice on this background.

#66AEDB
HEX#66AEDB
RGBrgb(102, 174, 219)
HSLhsl(203, 62%, 63%)
HSVhsv(203, 53%, 86%)
CMYKcmyk(53%, 21%, 0%, 14%)
OKLCHoklch(72.1% 0.098 237.6)
LABlab(67.72% -13.87 -30.24)
LCHlch(67.72% 33.26 245.36)

What #66AEDB 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 #66AEDB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Iceberg#71A6D2ΔE 5.45Aero#7CB9E8ΔE 5.47Picton Blue#45B1E8ΔE 8.44Carolina Blue#4B9CD3ΔE 8.98Cerulean Frost#6D9BC3ΔE 9.36Maya Blue#73C2FBΔE 9.48

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

#66AEDB Channel Values

How #66AEDB 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 174 · B 2198-bit channels as sent to the display
HSLH 203° · S 62% · L 63%Easiest model for building lighter and darker variants
HSVH 203° · S 53% · V 86%Matches the picker in most design tools
CMYKC 53% · M 21% · Y 0% · K 14%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.43:1 vs white · 8.64:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66AEDB 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 text2.43:1AA normal AA large AAA normal
TextBlack text8.64:1AA normal AA large AAA normal

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

Colors That Go With #66AEDB

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

Base
#66AEDB
Complementary
#DB9366
Analogous
#66DBCD
Analogous
#6674DB
Triadic
#DB66AE
Triadic
#AEDB66
Split comp.
#DB6674
Split comp.
#DBCD66

Tints & Shades of #66AEDB

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

#7BB9E0
#8FC4E5
#A4CFEA
#B9DAEF
#CDE5F3
#E2F0F8

Shades

#459DD3
#2D86BE
#256F9D
#1C5578
#143D57
#0C2332

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

How #66AEDB 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#66AEDB
Protanopia#A4A4DB
Protanomaly#90A8DB
Deuteranopia#9B9BDC
Deuteranomaly#89A3DC
Tritanopia#58B4B4
Tritanomaly#5EB2C5
Achromatopsia#A6A6A6

Test a full palette in the color blindness simulator.

Using #66AEDB in Code

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

CSS custom property--color-66aedb: #66AEDB;
CSS backgroundbackground-color: #66AEDB;
Tailwind configcolors: { 'color-66aedb': '#66AEDB' }
SwiftUIColor(red: 0.400, green: 0.682, blue: 0.859)
Android XML<color name="color_66aedb">#66AEDB</color>
SVG fillfill="#66AEDB"

More Blue Colors

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

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#66AEDB Frequently Asked Questions

What color is #66AEDB?

#66AEDB is a light blue — rgb(102, 174, 219) in RGB and hsl(203, 62%, 63%) in HSL. It carries no registered color name of its own; the closest named color is Iceberg (#71A6D2), which is clearly related but distinguishable side by side at a CIE76 distance of 5.45.

What is the RGB value of #66AEDB?

#66AEDB is rgb(102, 174, 219) — red 102, green 174, and blue 219 on the 0-255 scale.

What is the CMYK value of #66AEDB?

#66AEDB converts to approximately cmyk(53%, 21%, 0%, 14%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66AEDB be black or white?

Black text is the more readable choice. #66AEDB scores 2.43:1 against white and 8.64:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

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

No. #66AEDB 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 lightskyblue (#87CEFA) at a CIE76 distance of 11.64, which is visibly different.

Open #66AEDB in a Tool

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

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