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#42E0DB Color

#42E0DB is rgb(66, 224, 219) in RGB, hsl(178, 72%, 57%) in HSL, and about cmyk(71%, 0%, 2%, 12%) 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 5.94. Black text is the more readable choice on this background.

#42E0DB
HEX#42E0DB
RGBrgb(66, 224, 219)
HSLhsl(178, 72%, 57%)
HSVhsv(178, 71%, 88%)
CMYKcmyk(71%, 0%, 2%, 12%)
OKLCHoklch(82.6% 0.127 191.8)
LABlab(81.26% -42.58 -10.03)
LCHlch(81.26% 43.74 193.26)

What #42E0DB 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 #42E0DB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Turquoise#40E0D0ΔE 5.94Medium Turquoise#48D1CCΔE 6.07Bright Turquoise#08E8DEΔE 6.94Robin Egg Blue#00CCCCΔE 7.57Dark Turquoise#00CED1ΔE 7.63Fluorescent Blue#15F4EEΔE 9.37

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

#42E0DB Channel Values

How #42E0DB 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 224 · B 2198-bit channels as sent to the display
HSLH 178° · S 72% · L 57%Easiest model for building lighter and darker variants
HSVH 178° · S 71% · V 88%Matches the picker in most design tools
CMYKC 71% · M 0% · Y 2% · K 12%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.63:1 vs white · 12.92:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #42E0DB 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 text1.63:1AA normal AA large AAA normal
TextBlack text12.92:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #42E0DB in the contrast checker.

Colors That Go With #42E0DB

Pairings derived from color-wheel relationships. The complementary color sits opposite #42E0DB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#42E0DB
Complementary
#E04248
Analogous
#42E08C
Analogous
#4297E0
Triadic
#DB42E0
Triadic
#E0DB42
Split comp.
#E04297
Split comp.
#E08C42

Tints & Shades of #42E0DB

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

#5DE5E0
#77E9E5
#91EDEA
#A7F1EE
#C2F5F3
#DCF9F8

Shades

#23D7D1
#1EB8B3
#189591
#137673
#0E5351
#093533

Want a full 50-950 ramp with semantic roles? Generate design tokens from #42E0DB.

How #42E0DB 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#42E0DB
Protanopia#D0D0DB
Protanomaly#A9D6DB
Deuteranopia#BEBEDE
Deuteranomaly#9CCDDD
Tritanopia#45DFDF
Tritanomaly#44E0DE
Achromatopsia#CBCBCB

Test a full palette in the color blindness simulator.

Using #42E0DB in Code

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

CSS custom property--color-42e0db: #42E0DB;
CSS backgroundbackground-color: #42E0DB;
Tailwind configcolors: { 'color-42e0db': '#42E0DB' }
SwiftUIColor(red: 0.259, green: 0.878, blue: 0.859)
Android XML<color name="color_42e0db">#42E0DB</color>
SVG fillfill="#42E0DB"

More Teal Colors

#42E0DB sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#42E0DB Frequently Asked Questions

What color is #42E0DB?

#42E0DB is a mid-tone teal — rgb(66, 224, 219) in RGB and hsl(178, 72%, 57%) 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 5.94.

What is the RGB value of #42E0DB?

#42E0DB is rgb(66, 224, 219) — red 66, green 224, and blue 219 on the 0-255 scale.

What is the CMYK value of #42E0DB?

#42E0DB converts to approximately cmyk(71%, 0%, 2%, 12%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #42E0DB be black or white?

Black text is the more readable choice. #42E0DB scores 1.63:1 against white and 12.92:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #42E0DB as a CSS color keyword?

No. #42E0DB 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 5.94, which is clearly related but distinguishable side by side.

Open #42E0DB 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.