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Brilliant Green 1621 (#009966)

The hex code for Brilliant Green 1621 is #009966. It is rgb(0, 153, 102) in RGB, hsl(160, 100%, 30%) in HSL, and about cmyk(100%, 0%, 33%, 40%) in CMYK — a dark green. Black text is the more readable choice on this background.

#009966
HEX#009966
RGBrgb(0, 153, 102)
HSLhsl(160, 100%, 30%)
HSVhsv(160, 100%, 60%)
CMYKcmyk(100%, 0%, 33%, 40%)
OKLCHoklch(60.3% 0.134 160.9)
LABlab(55.73% -45.32 16.82)
LCHlch(55.73% 48.34 159.64)

Colors Closest to Brilliant Green 1621

Brilliant Green 1621 is a registered color name, also listed as Green-cyan. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Green (NCS)#009F6BΔE 2.37Green (Munsell)#00A877ΔE 6.04Shamrock Green#009E60ΔE 6.14Green (Crayola)#1CAC78ΔE 6.97Traffic Green#008754ΔE 7.18Green Frog#00A86BΔE 7.62

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

#009966 Channel Values

How Brilliant Green 1621 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 0 · G 153 · B 1028-bit channels as sent to the display
HSLH 160° · S 100% · L 30%Easiest model for building lighter and darker variants
HSVH 160° · S 100% · V 60%Matches the picker in most design tools
CMYKC 100% · M 0% · Y 33% · K 40%Approximate ink mix; confirm with an ICC profile before printing
Luminance3.65:1 vs white · 5.75:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Brilliant Green 1621 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 text3.65:1AA normal AA large AAA normal
TextBlack text5.75:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #009966 in the contrast checker.

Colors That Go With Brilliant Green 1621

Pairings derived from color-wheel relationships. The complementary color sits opposite Brilliant Green 1621; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#009966
Complementary
#990033
Analogous
#00991A
Analogous
#007F99
Triadic
#660099
Triadic
#996600
Split comp.
#99007F
Split comp.
#991900

Tints & Shades of Brilliant Green 1621

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

#00CC88
#00FAA7
#2EFFB9
#61FFCA
#94FFDB
#C2FFEB

Shades

#008558
#00754E
#006141
#004D33
#003825
#00291B

Want a full 50-950 ramp with semantic roles? Generate design tokens from #009966.

How Brilliant Green 1621 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#009966
Protanopia#8C8C67
Protanomaly#6F9266
Deuteranopia#7F7F69
Deuteranomaly#648A68
Tritanopia#2B9494
Tritanomaly#209684
Achromatopsia#868686

Test a full palette in the color blindness simulator.

Using #009966 in Code

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

CSS custom property--brilliant-green-1621: #009966;
CSS backgroundbackground-color: #009966;
Tailwind configcolors: { 'brilliant-green-1621': '#009966' }
SwiftUIColor(red: 0.000, green: 0.600, blue: 0.400)
Android XML<color name="brilliant_green_1621">#009966</color>
SVG fillfill="#009966"

More Green Colors

Brilliant Green 1621 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

009b7d00995e009e0000994d009e4f009933009e60009900009f6b00940000a55000915000ff7f15561528432835431e4c91416699007cfc0099cc33a9ba9dc2ffebd9e650002e00

#009966 Frequently Asked Questions

What is the hex code for Brilliant Green 1621?

The hex code for Brilliant Green 1621 is #009966. That is rgb(0, 153, 102) in RGB, hsl(160, 100%, 30%) in HSL, and approximately cmyk(100%, 0%, 33%, 40%) in CMYK.

What is the RGB value of #009966?

#009966 is rgb(0, 153, 102) — red 0, green 153, and blue 102 on the 0-255 scale.

What is the CMYK value of #009966?

#009966 converts to approximately cmyk(100%, 0%, 33%, 40%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #009966 be black or white?

Black text is the more readable choice. #009966 scores 3.65:1 against white and 5.75:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #009966 as a CSS color keyword?

No. #009966 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 seagreen (#2E8B57) at a CIE76 distance of 9.01, which is clearly related but distinguishable side by side.

Open Brilliant Green 1621 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.