Skip to content

#42ECFF Color

#42ECFF is rgb(66, 236, 255) in RGB, hsl(186, 100%, 63%) in HSL, and about cmyk(74%, 7%, 0%, 0%) in CMYK. It has no registered color name of its own — the closest is Lotion Blue (#15F2FD), clearly related but distinguishable side by side at ΔE 6.88. Black text is the more readable choice on this background.

#42ECFF
HEX#42ECFF
RGBrgb(66, 236, 255)
HSLhsl(186, 100%, 63%)
HSVhsv(186, 74%, 100%)
CMYKcmyk(74%, 7%, 0%, 0%)
OKLCHoklch(86.7% 0.135 206.3)
LABlab(85.71% -39.43 -22.28)
LCHlch(85.71% 45.30 209.47)

What #42ECFF 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 #42ECFF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Lotion Blue#15F2FDΔE 6.88Electric Blue#7DF9FFΔE 10.64Dark Turquoise#00CED1ΔE 13.81Aqua#00FFFFΔE 14.29Sky Blue (Crayola)#76D7EAΔE 14.71Neon Cyan#00FEFCΔE 14.93

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

#42ECFF Channel Values

How #42ECFF 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 66 · G 236 · B 2558-bit channels as sent to the display
HSLH 186° · S 100% · L 63%Easiest model for building lighter and darker variants
HSVH 186° · S 74% · V 100%Matches the picker in most design tools
CMYKC 74% · M 7% · Y 0% · K 0%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.43:1 vs white · 14.67:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #42ECFF 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 text1.43:1AA normal AA large AAA normal
TextBlack text14.67:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #42ECFF in the contrast checker.

Colors That Go With #42ECFF

Pairings derived from color-wheel relationships. The complementary color sits opposite #42ECFF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#42ECFF
Complementary
#FF5542
Analogous
#42FFB4
Analogous
#428EFF
Triadic
#FF42EC
Triadic
#ECFF42
Split comp.
#FF428E
Split comp.
#FFB442

Tints & Shades of #42ECFF

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

#5CEFFF
#75F1FF
#8FF4FF
#A8F6FF
#C2F9FF
#DBFBFF

Shades

#1AE8FF
#00D3EB
#00AEC2
#008594
#00606B
#00373D

Want a full 50-950 ramp with semantic roles? Generate design tokens from #42ECFF.

How #42ECFF 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#42ECFF
Protanopia#DBDBFF
Protanomaly#B2E2FF
Deuteranopia#C8C8FF
Deuteranomaly#A4D8FF
Tritanopia#34EFEF
Tritanomaly#3AEEF5
Achromatopsia#D8D8D8

Test a full palette in the color blindness simulator.

Using #42ECFF in Code

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

CSS custom property--color-42ecff: #42ECFF;
CSS backgroundbackground-color: #42ECFF;
Tailwind configcolors: { 'color-42ecff': '#42ECFF' }
SwiftUIColor(red: 0.259, green: 0.925, blue: 1.000)
Android XML<color name="color_42ecff">#42ECFF</color>
SVG fillfill="#42ECFF"

More Teal Colors

#42ECFF sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#42ECFF Frequently Asked Questions

What color is #42ECFF?

#42ECFF is a light teal — rgb(66, 236, 255) in RGB and hsl(186, 100%, 63%) in HSL. It carries no registered color name of its own; the closest named color is Lotion Blue (#15F2FD), which is clearly related but distinguishable side by side at a CIE76 distance of 6.88.

What is the RGB value of #42ECFF?

#42ECFF is rgb(66, 236, 255) — red 66, green 236, and blue 255 on the 0-255 scale.

What is the CMYK value of #42ECFF?

#42ECFF converts to approximately cmyk(74%, 7%, 0%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #42ECFF be black or white?

Black text is the more readable choice. #42ECFF scores 1.43:1 against white and 14.67:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #42ECFF as a CSS color keyword?

No. #42ECFF 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 darkturquoise (#00CED1) at a CIE76 distance of 13.81, which is visibly different.

Open #42ECFF 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.