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#40CEAB Color

#40CEAB is rgb(64, 206, 171) in RGB, hsl(165, 59%, 53%) in HSL, and about cmyk(69%, 0%, 17%, 19%) in CMYK. It has no registered color name of its own — the closest is Eucalyptus (#44D7A8), clearly related but distinguishable side by side at ΔE 6.97. Black text is the more readable choice on this background.

#40CEAB
HEX#40CEAB
RGBrgb(64, 206, 171)
HSLhsl(165, 59%, 53%)
HSVhsv(165, 69%, 81%)
CMYKcmyk(69%, 0%, 17%, 19%)
OKLCHoklch(76.8% 0.13 172.7)
LABlab(74.73% -45.53 5.96)
LCHlch(74.73% 45.92 172.54)

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

Eucalyptus#44D7A8ΔE 6.97Medium Aquamarine#66CDAAΔE 8.04Mountain Meadow#30BA8FΔE 8.66Caribbean Green#00CC99ΔE 10.71Turquoise#40E0D0ΔE 12.33Jungle Green#29AB87ΔE 12.7

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

#40CEAB Channel Values

How #40CEAB 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 206 · B 1718-bit channels as sent to the display
HSLH 165° · S 59% · L 53%Easiest model for building lighter and darker variants
HSVH 165° · S 69% · V 81%Matches the picker in most design tools
CMYKC 69% · M 0% · Y 17% · K 19%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.97:1 vs white · 10.63:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #40CEAB 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 text1.97:1AA normal AA large AAA normal
TextBlack text10.63:1AA normal AA large AAA normal

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

Colors That Go With #40CEAB

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

Base
#40CEAB
Complementary
#CE4064
Analogous
#40CE64
Analogous
#40ABCE
Triadic
#AB40CE
Triadic
#CEAB40
Split comp.
#CE40AB
Split comp.
#CE6440

Tints & Shades of #40CEAB

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

#59D4B5
#75DBC2
#8DE2CD
#AAE9D9
#C2EFE4
#DFF7F1

Shades

#30BB98
#299E81
#21826A
#1A6553
#13493B
#0C2D24

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

How #40CEAB 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#40CEAB
Protanopia#BFBFAB
Protanomaly#9CC5AB
Deuteranopia#AFAFAE
Deuteranomaly#90BCAD
Tritanopia#4FCACA
Tritanomaly#49CCBE
Achromatopsia#B8B8B8

Test a full palette in the color blindness simulator.

Using #40CEAB in Code

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

CSS custom property--color-40ceab: #40CEAB;
CSS backgroundbackground-color: #40CEAB;
Tailwind configcolors: { 'color-40ceab': '#40CEAB' }
SwiftUIColor(red: 0.251, green: 0.808, blue: 0.671)
Android XML<color name="color_40ceab">#40CEAB</color>
SVG fillfill="#40CEAB"

More Green Colors

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

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#40CEAB Frequently Asked Questions

What color is #40CEAB?

#40CEAB is a mid-tone green — rgb(64, 206, 171) in RGB and hsl(165, 59%, 53%) in HSL. It carries no registered color name of its own; the closest named color is Eucalyptus (#44D7A8), which is clearly related but distinguishable side by side at a CIE76 distance of 6.97.

What is the RGB value of #40CEAB?

#40CEAB is rgb(64, 206, 171) — red 64, green 206, and blue 171 on the 0-255 scale.

What is the CMYK value of #40CEAB?

#40CEAB converts to approximately cmyk(69%, 0%, 17%, 19%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #40CEAB be black or white?

Black text is the more readable choice. #40CEAB scores 1.97:1 against white and 10.63:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

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

No. #40CEAB 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 mediumaquamarine (#66CDAA) at a CIE76 distance of 8.04, which is clearly related but distinguishable side by side.

Open #40CEAB 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.