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#39EF66 Color

#39EF66 is rgb(57, 239, 102) in RGB, hsl(135, 85%, 58%) in HSL, and about cmyk(76%, 0%, 57%, 6%) in CMYK. It has no registered color name of its own — the closest is Malachite (#0BDA51), clearly related but distinguishable side by side at ΔE 7.21. Black text is the more readable choice on this background.

#39EF66
HEX#39EF66
RGBrgb(57, 239, 102)
HSLhsl(135, 85%, 58%)
HSVhsv(135, 76%, 94%)
CMYKcmyk(76%, 0%, 57%, 6%)
OKLCHoklch(83.6% 0.23 147)
LABlab(83.75% -66.88 51.76)
LCHlch(83.75% 84.57 142.26)

What #39EF66 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 #39EF66, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Malachite#0BDA51ΔE 7.21Spring Green#00FF7FΔE 9.33Screamin' Green#66FF66ΔE 9.53Vivid Malachite#00CC33ΔE 13.86Lime Green#32CD32ΔE 14.72SGBUS Green#55DD33ΔE 16.27

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

#39EF66 Channel Values

How #39EF66 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 57 · G 239 · B 1028-bit channels as sent to the display
HSLH 135° · S 85% · L 58%Easiest model for building lighter and darker variants
HSVH 135° · S 76% · V 94%Matches the picker in most design tools
CMYKC 76% · M 0% · Y 57% · K 6%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.53:1 vs white · 13.71:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #39EF66 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 text1.53:1AA normal AA large AAA normal
TextBlack text13.71:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #39EF66 in the contrast checker.

Colors That Go With #39EF66

Pairings derived from color-wheel relationships. The complementary color sits opposite #39EF66; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#39EF66
Complementary
#EF39C1
Analogous
#66EF39
Analogous
#39EFC1
Triadic
#6639EF
Triadic
#EF6639
Split comp.
#C139EF
Split comp.
#EF3966

Tints & Shades of #39EF66

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

#55F17C
#6DF38E
#89F5A4
#A5F8BA
#C2FAD0
#D9FCE2

Shades

#13EC49
#10CB3F
#0DA533
#0A7F28
#075A1C
#053912

Want a full 50-950 ramp with semantic roles? Generate design tokens from #39EF66.

How #39EF66 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#39EF66
Protanopia#DDDD67
Protanomaly#B3E467
Deuteranopia#CACA6E
Deuteranomaly#A4DA6B
Tritanopia#66E3E3
Tritanomaly#58E8BE
Achromatopsia#D1D1D1

Test a full palette in the color blindness simulator.

Using #39EF66 in Code

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

CSS custom property--color-39ef66: #39EF66;
CSS backgroundbackground-color: #39EF66;
Tailwind configcolors: { 'color-39ef66': '#39EF66' }
SwiftUIColor(red: 0.224, green: 0.937, blue: 0.400)
Android XML<color name="color_39ef66">#39EF66</color>
SVG fillfill="#39EF66"

More Green Colors

#39EF66 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#39EF66 Frequently Asked Questions

What color is #39EF66?

#39EF66 is a mid-tone green — rgb(57, 239, 102) in RGB and hsl(135, 85%, 58%) in HSL. It carries no registered color name of its own; the closest named color is Malachite (#0BDA51), which is clearly related but distinguishable side by side at a CIE76 distance of 7.21.

What is the RGB value of #39EF66?

#39EF66 is rgb(57, 239, 102) — red 57, green 239, and blue 102 on the 0-255 scale.

What is the CMYK value of #39EF66?

#39EF66 converts to approximately cmyk(76%, 0%, 57%, 6%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #39EF66 be black or white?

Black text is the more readable choice. #39EF66 scores 1.53:1 against white and 13.71:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #39EF66 as a CSS color keyword?

No. #39EF66 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 springgreen (#00FF7F) at a CIE76 distance of 9.33, which is clearly related but distinguishable side by side.

Open #39EF66 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.