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#66FFF7 Color

#66FFF7 is rgb(102, 255, 247) in RGB, hsl(177, 100%, 70%) in HSL, and about cmyk(60%, 0%, 3%, 0%) in CMYK. It has no registered color name of its own — the closest is Fluorescent Blue (#15F4EE), clearly related but distinguishable side by side at ΔE 8.17. Black text is the more readable choice on this background.

#66FFF7
HEX#66FFF7
RGBrgb(102, 255, 247)
HSLhsl(177, 100%, 70%)
HSVhsv(177, 60%, 100%)
CMYKcmyk(60%, 0%, 3%, 0%)
OKLCHoklch(91.7% 0.129 190.3)
LABlab(91.81% -43.58 -8.98)
LCHlch(91.81% 44.49 191.64)

What #66FFF7 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 #66FFF7, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Fluorescent Blue#15F4EEΔE 8.17Neon Cyan#00FEFCΔE 9.03Aqua#00FFFFΔE 9.34Electric Blue#7DF9FFΔE 9.98Bright Turquoise#08E8DEΔE 10.38Turquoise Blue#00FFEFΔE 10.8

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

#66FFF7 Channel Values

How #66FFF7 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 255 · B 2478-bit channels as sent to the display
HSLH 177° · S 100% · L 70%Easiest model for building lighter and darker variants
HSVH 177° · S 60% · V 100%Matches the picker in most design tools
CMYKC 60% · M 0% · Y 3% · K 0%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.22:1 vs white · 17.21:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66FFF7 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 text1.22:1AA normal AA large AAA normal
TextBlack text17.21:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66FFF7 in the contrast checker.

Colors That Go With #66FFF7

Pairings derived from color-wheel relationships. The complementary color sits opposite #66FFF7; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66FFF7
Complementary
#FF666E
Analogous
#66FFAB
Analogous
#66BAFF
Triadic
#F766FF
Triadic
#FFF766
Split comp.
#FF66BA
Split comp.
#FFAB66

Tints & Shades of #66FFF7

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

#7AFFF8
#8FFFF9
#A3FFFA
#B8FFFB
#CCFFFC
#E0FFFD

Shades

#38FFF5
#05FFF3
#00D6CB
#00A39B
#00756F
#00423F

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66FFF7.

How #66FFF7 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#66FFF7
Protanopia#EEEEF7
Protanomaly#C6F5F7
Deuteranopia#DCDCFA
Deuteranomaly#B8EBF9
Tritanopia#69FEFE
Tritanomaly#68FEFB
Achromatopsia#E8E8E8

Test a full palette in the color blindness simulator.

Using #66FFF7 in Code

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

CSS custom property--color-66fff7: #66FFF7;
CSS backgroundbackground-color: #66FFF7;
Tailwind configcolors: { 'color-66fff7': '#66FFF7' }
SwiftUIColor(red: 0.400, green: 1.000, blue: 0.969)
Android XML<color name="color_66fff7">#66FFF7</color>
SVG fillfill="#66FFF7"

More Teal Colors

#66FFF7 sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#66FFF7 Frequently Asked Questions

What color is #66FFF7?

#66FFF7 is a light teal — rgb(102, 255, 247) in RGB and hsl(177, 100%, 70%) in HSL. It carries no registered color name of its own; the closest named color is Fluorescent Blue (#15F4EE), which is clearly related but distinguishable side by side at a CIE76 distance of 8.17.

What is the RGB value of #66FFF7?

#66FFF7 is rgb(102, 255, 247) — red 102, green 255, and blue 247 on the 0-255 scale.

What is the CMYK value of #66FFF7?

#66FFF7 converts to approximately cmyk(60%, 0%, 3%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66FFF7 be black or white?

Black text is the more readable choice. #66FFF7 scores 1.22:1 against white and 17.21:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66FFF7 as a CSS color keyword?

No. #66FFF7 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 aqua (#00FFFF) at a CIE76 distance of 9.34, which is clearly related but distinguishable side by side.

Open #66FFF7 in a Tool

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

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