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#21E87E Color

#21E87E is rgb(33, 232, 126) in RGB, hsl(148, 81%, 52%) in HSL, and about cmyk(86%, 0%, 46%, 9%) in CMYK. It has no registered color name of its own — the closest is Medium Spring Green (#00FA9A), clearly related but distinguishable side by side at ΔE 9.06. Black text is the more readable choice on this background.

#21E87E
HEX#21E87E
RGBrgb(33, 232, 126)
HSLhsl(148, 81%, 52%)
HSVhsv(148, 86%, 91%)
CMYKcmyk(86%, 0%, 46%, 9%)
OKLCHoklch(81.8% 0.207 152.5)
LABlab(81.54% -64.69 37.99)
LCHlch(81.54% 75.02 149.58)

What #21E87E 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 #21E87E, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Spring Green#00FA9AΔE 9.06Android Green#3DDC84ΔE 10.77Very Light Malachite Green#64E986ΔE 10.96Spring Green#00FF7FΔE 13.12Malachite#0BDA51ΔE 15.43Pastel Green#77DD77ΔE 18.45

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

#21E87E Channel Values

How #21E87E 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 33 · G 232 · B 1268-bit channels as sent to the display
HSLH 148° · S 81% · L 52%Easiest model for building lighter and darker variants
HSVH 148° · S 86% · V 91%Matches the picker in most design tools
CMYKC 86% · M 0% · Y 46% · K 9%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.63:1 vs white · 12.91:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #21E87E 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 text12.91:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #21E87E in the contrast checker.

Colors That Go With #21E87E

Pairings derived from color-wheel relationships. The complementary color sits opposite #21E87E; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#21E87E
Complementary
#E8218B
Analogous
#28E821
Analogous
#21E8E1
Triadic
#7E21E8
Triadic
#E87E21
Split comp.
#E121E8
Split comp.
#E82128

Tints & Shades of #21E87E

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

#42EB91
#5DEEA1
#7EF1B4
#99F4C4
#BAF8D7
#D5FBE7

Shades

#16D06D
#12AF5C
#0F8F4B
#0C733C
#09532B
#05331B

Want a full 50-950 ramp with semantic roles? Generate design tokens from #21E87E.

How #21E87E 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#21E87E
Protanopia#D6D67F
Protanomaly#ABDD7F
Deuteranopia#C3C384
Deuteranomaly#9CD382
Tritanopia#55DEDE
Tritanomaly#46E2BF
Achromatopsia#CBCBCB

Test a full palette in the color blindness simulator.

Using #21E87E in Code

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

CSS custom property--color-21e87e: #21E87E;
CSS backgroundbackground-color: #21E87E;
Tailwind configcolors: { 'color-21e87e': '#21E87E' }
SwiftUIColor(red: 0.129, green: 0.910, blue: 0.494)
Android XML<color name="color_21e87e">#21E87E</color>
SVG fillfill="#21E87E"

More Green Colors

#21E87E sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#21E87E Frequently Asked Questions

What color is #21E87E?

#21E87E is a mid-tone green — rgb(33, 232, 126) in RGB and hsl(148, 81%, 52%) in HSL. It carries no registered color name of its own; the closest named color is Medium Spring Green (#00FA9A), which is clearly related but distinguishable side by side at a CIE76 distance of 9.06.

What is the RGB value of #21E87E?

#21E87E is rgb(33, 232, 126) — red 33, green 232, and blue 126 on the 0-255 scale.

What is the CMYK value of #21E87E?

#21E87E converts to approximately cmyk(86%, 0%, 46%, 9%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #21E87E be black or white?

Black text is the more readable choice. #21E87E scores 1.63:1 against white and 12.91:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #21E87E as a CSS color keyword?

No. #21E87E 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 mediumspringgreen (#00FA9A) at a CIE76 distance of 9.06, which is clearly related but distinguishable side by side.

Open #21E87E 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.