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#64B999 Color

#64B999 is rgb(100, 185, 153) in RGB, hsl(157, 38%, 56%) in HSL, and about cmyk(46%, 0%, 17%, 27%) in CMYK. It has no registered color name of its own — the closest is Medium Aquamarine (#66CDAA), clearly related but distinguishable side by side at ΔE 8.11. Black text is the more readable choice on this background.

#64B999
HEX#64B999
RGBrgb(100, 185, 153)
HSLhsl(157, 38%, 56%)
HSVhsv(157, 46%, 73%)
CMYKcmyk(46%, 0%, 17%, 27%)
OKLCHoklch(72.3% 0.096 167.2)
LABlab(69.15% -32.78 7.91)
LCHlch(69.15% 33.72 166.44)

What #64B999 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 #64B999, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Aquamarine#66CDAAΔE 8.11Zomp#39A78EΔE 9.58Keppel#3AB09EΔE 10.68Shiny Shamrock#5FA778ΔE 11.16Polished Pine#5DA493ΔE 11.23Forest Green (Crayola)#5FA777ΔE 11.59

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

#64B999 Channel Values

How #64B999 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 100 · G 185 · B 1538-bit channels as sent to the display
HSLH 157° · S 38% · L 56%Easiest model for building lighter and darker variants
HSVH 157° · S 46% · V 73%Matches the picker in most design tools
CMYKC 46% · M 0% · Y 17% · K 27%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.35:1 vs white · 8.94:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #64B999 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 text2.35:1AA normal AA large AAA normal
TextBlack text8.94:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #64B999 in the contrast checker.

Colors That Go With #64B999

Pairings derived from color-wheel relationships. The complementary color sits opposite #64B999; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#64B999
Complementary
#B96485
Analogous
#64B96E
Analogous
#64AFB9
Triadic
#9964B9
Triadic
#B99964
Split comp.
#B964AF
Split comp.
#B96E64

Tints & Shades of #64B999

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

#79C3A7
#8ECCB5
#A4D6C3
#B9DFD1
#CEE9DE
#E3F2EC

Shades

#4DAC88
#419072
#36785E
#295B48
#1E4335
#11271F

Want a full 50-950 ramp with semantic roles? Generate design tokens from #64B999.

How #64B999 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#64B999
Protanopia#AEAE99
Protanomaly#96B399
Deuteranopia#A3A39B
Deuteranomaly#8EAC9A
Tritanopia#6CB5B5
Tritanomaly#69B7AB
Achromatopsia#A9A9A9

Test a full palette in the color blindness simulator.

Using #64B999 in Code

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

CSS custom property--color-64b999: #64B999;
CSS backgroundbackground-color: #64B999;
Tailwind configcolors: { 'color-64b999': '#64B999' }
SwiftUIColor(red: 0.392, green: 0.725, blue: 0.600)
Android XML<color name="color_64b999">#64B999</color>
SVG fillfill="#64B999"

More Green Colors

#64B999 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#64B999 Frequently Asked Questions

What color is #64B999?

#64B999 is a mid-tone green — rgb(100, 185, 153) in RGB and hsl(157, 38%, 56%) in HSL. It carries no registered color name of its own; the closest named color is Medium Aquamarine (#66CDAA), which is clearly related but distinguishable side by side at a CIE76 distance of 8.11.

What is the RGB value of #64B999?

#64B999 is rgb(100, 185, 153) — red 100, green 185, and blue 153 on the 0-255 scale.

What is the CMYK value of #64B999?

#64B999 converts to approximately cmyk(46%, 0%, 17%, 27%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #64B999 be black or white?

Black text is the more readable choice. #64B999 scores 2.35:1 against white and 8.94:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #64B999 as a CSS color keyword?

No. #64B999 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 8.11, which is clearly related but distinguishable side by side.

Open #64B999 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.