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#40CB15 Color

#40CB15 is rgb(64, 203, 21) in RGB, hsl(106, 81%, 44%) in HSL, and about cmyk(68%, 0%, 90%, 20%) in CMYK. It has no registered color name of its own — the closest is SGBUS Green (#55DD33), clearly related but distinguishable side by side at ΔE 6.38. Black text is the more readable choice on this background.

#40CB15
HEX#40CB15
RGBrgb(64, 203, 21)
HSLhsl(106, 81%, 44%)
HSVhsv(106, 90%, 80%)
CMYKcmyk(68%, 0%, 90%, 20%)
OKLCHoklch(73.8% 0.234 140.4)
LABlab(72.23% -60.01 66.80)
LCHlch(72.23% 89.80 131.94)

What #40CB15 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 #40CB15, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

SGBUS Green#55DD33ΔE 6.38Lime Green#32CD32ΔE 7Vivid Malachite#00CC33ΔE 9.71Kelly Green#4CBB17ΔE 9.84Dark Pastel Green#03C03CΔE 15.67Malachite#0BDA51ΔE 16.39

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

#40CB15 Channel Values

How #40CB15 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 64 · G 203 · B 218-bit channels as sent to the display
HSLH 106° · S 81% · L 44%Easiest model for building lighter and darker variants
HSVH 106° · S 90% · V 80%Matches the picker in most design tools
CMYKC 68% · M 0% · Y 90% · K 20%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.15:1 vs white · 9.77:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #40CB15 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 text2.15:1AA normal AA large AAA normal
TextBlack text9.77:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #40CB15 in the contrast checker.

Colors That Go With #40CB15

Pairings derived from color-wheel relationships. The complementary color sits opposite #40CB15; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#40CB15
Complementary
#A115CB
Analogous
#9BCB15
Analogous
#15CB46
Triadic
#1540CB
Triadic
#CB1540
Split comp.
#4615CB
Split comp.
#CB159B

Tints & Shades of #40CB15

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

#50E821
#69EB42
#86EF67
#A4F38C
#C1F7B1
#DAFAD1

Shades

#37AF12
#309810
#277D0D
#1E610A
#164507
#0E2E05

Want a full 50-950 ramp with semantic roles? Generate design tokens from #40CB15.

How #40CB15 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#40CB15
Protanopia#BCBC19
Protanomaly#9AC218
Deuteranopia#ADAD2A
Deuteranomaly#8EBA23
Tritanopia#64BFBF
Tritanomaly#57C499
Achromatopsia#B1B1B1

Test a full palette in the color blindness simulator.

Using #40CB15 in Code

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

CSS custom property--color-40cb15: #40CB15;
CSS backgroundbackground-color: #40CB15;
Tailwind configcolors: { 'color-40cb15': '#40CB15' }
SwiftUIColor(red: 0.251, green: 0.796, blue: 0.082)
Android XML<color name="color_40cb15">#40CB15</color>
SVG fillfill="#40CB15"

More Green Colors

#40CB15 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#40CB15 Frequently Asked Questions

What color is #40CB15?

#40CB15 is a mid-tone green — rgb(64, 203, 21) in RGB and hsl(106, 81%, 44%) in HSL. It carries no registered color name of its own; the closest named color is SGBUS Green (#55DD33), which is clearly related but distinguishable side by side at a CIE76 distance of 6.38.

What is the RGB value of #40CB15?

#40CB15 is rgb(64, 203, 21) — red 64, green 203, and blue 21 on the 0-255 scale.

What is the CMYK value of #40CB15?

#40CB15 converts to approximately cmyk(68%, 0%, 90%, 20%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #40CB15 be black or white?

Black text is the more readable choice. #40CB15 scores 2.15:1 against white and 9.77:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #40CB15 as a CSS color keyword?

No. #40CB15 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 limegreen (#32CD32) at a CIE76 distance of 7, which is clearly related but distinguishable side by side.

Open #40CB15 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.