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#42FF87 Color

#42FF87 is rgb(66, 255, 135) in RGB, hsl(142, 100%, 63%) in HSL, and about cmyk(74%, 0%, 47%, 0%) in CMYK. It has no registered color name of its own — the closest is Spring Green (#00FF7F), clearly related but distinguishable side by side at ΔE 6.15. Black text is the more readable choice on this background.

#42FF87
HEX#42FF87
RGBrgb(66, 255, 135)
HSLhsl(142, 100%, 63%)
HSVhsv(142, 74%, 100%)
CMYKcmyk(74%, 0%, 47%, 0%)
OKLCHoklch(88.2% 0.22 150.6)
LABlab(89.10% -67.03 43.24)
LCHlch(89.10% 79.77 147.18)

What #42FF87 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 #42FF87, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Spring Green#00FF7FΔE 6.15Medium Spring Green#00FA9AΔE 11.8Malachite#0BDA51ΔE 15.56Very Light Malachite Green#64E986ΔE 15.76Screamin' Green#66FF66ΔE 15.76Android Green#3DDC84ΔE 19.05

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

#42FF87 Channel Values

How #42FF87 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 255 · B 1358-bit channels as sent to the display
HSLH 142° · S 100% · L 63%Easiest model for building lighter and darker variants
HSVH 142° · S 74% · V 100%Matches the picker in most design tools
CMYKC 74% · M 0% · Y 47% · K 0%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.32:1 vs white · 15.89:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #42FF87 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 text1.32:1AA normal AA large AAA normal
TextBlack text15.89:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #42FF87 in the contrast checker.

Colors That Go With #42FF87

Pairings derived from color-wheel relationships. The complementary color sits opposite #42FF87; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#42FF87
Complementary
#FF42BA
Analogous
#5BFF42
Analogous
#42FFE6
Triadic
#8742FF
Triadic
#FF8742
Split comp.
#E642FF
Split comp.
#FF425B

Tints & Shades of #42FF87

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

#5CFF98
#75FFA8
#8FFFB8
#A8FFC8
#C2FFD8
#DBFFE8

Shades

#1AFF6E
#00EB56
#00C247
#009436
#006B27
#003D16

Want a full 50-950 ramp with semantic roles? Generate design tokens from #42FF87.

How #42FF87 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#42FF87
Protanopia#ECEC88
Protanomaly#C0F488
Deuteranopia#D8D88E
Deuteranomaly#B0E98B
Tritanopia#6CF4F4
Tritanomaly#5EF8D1
Achromatopsia#E0E0E0

Test a full palette in the color blindness simulator.

Using #42FF87 in Code

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

CSS custom property--color-42ff87: #42FF87;
CSS backgroundbackground-color: #42FF87;
Tailwind configcolors: { 'color-42ff87': '#42FF87' }
SwiftUIColor(red: 0.259, green: 1.000, blue: 0.529)
Android XML<color name="color_42ff87">#42FF87</color>
SVG fillfill="#42FF87"

More Green Colors

#42FF87 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#42FF87 Frequently Asked Questions

What color is #42FF87?

#42FF87 is a light green — rgb(66, 255, 135) in RGB and hsl(142, 100%, 63%) in HSL. It carries no registered color name of its own; the closest named color is Spring Green (#00FF7F), which is clearly related but distinguishable side by side at a CIE76 distance of 6.15.

What is the RGB value of #42FF87?

#42FF87 is rgb(66, 255, 135) — red 66, green 255, and blue 135 on the 0-255 scale.

What is the CMYK value of #42FF87?

#42FF87 converts to approximately cmyk(74%, 0%, 47%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #42FF87 be black or white?

Black text is the more readable choice. #42FF87 scores 1.32:1 against white and 15.89:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #42FF87 as a CSS color keyword?

No. #42FF87 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 6.15, which is clearly related but distinguishable side by side.

Open #42FF87 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.