Photo in the color Kelly green
Pictured: Kelly green
rgb(76, 187, 23)
#4CBB17

Kelly Green #4CBB17 RGB Color Code

Kelly Green (#4CBB17) is a vivid, light green. In RGB it is made of 30% red, 73% green and 9% blue (R 76, G 187, B 23). The green channel is the strongest. In HSL it has a hue of 101°, 78% saturation and 41% lightness. Its relative luminance is 0.371, so black text is easier to read on top of it. For print, a rough CMYK match is 59% cyan, 0% magenta, 88% yellow and 27% black. Check it against your printer's ICC profile before you print. It is a cool color. It goes well with warm oranges and reds for contrast. For a calm, matching look, use nearby cool tones.

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Kelly Green color codes

#4CBB17 in every common color format. Click a value to copy it.

FormatValueNotesCopy
HEX #4CBB17 Valid CSS
RGB rgb(76, 187, 23) Valid CSS
HSL hsl(101, 78%, 41%) Valid CSS
HSV / HSB hsv(101, 88%, 73%) Not a CSS format
HWB hwb(101 9% 27%) Valid CSS
CMYK cmyk(59%, 0%, 88%, 27%) Approximate (no ICC profile)
OKLCH oklch(69.99% 0.2119 138.67) Valid CSS
OKLab oklab(69.99% -0.1591 0.1399) Valid CSS
CIELAB lab(67.49% -52.45 62.68) D50, as in CSS
CIELCH lch(67.49% 81.72 129.92) Valid CSS
Display P3 color(display-p3 0.4205 0.7239 0.2348) Valid CSS
XYZ (D65) color(xyz-d65 0.209 0.3714 0.0688) Valid CSS
Decimal 5028631 Integer (0xRRGGBB)

CMYK here is a rough screen match without an ICC profile. See CMYK and print. Relative luminance: 0.3714. Nearest web-safe color: #33CC00.

Mix Kelly Green with other colors

See what #4CBB17 makes with red paint, under a green light, printed with cyan ink and in a digital blend with blue. Click a picture to change the colors and amounts in the color mixer.

PaintKelly Green and red paintOpen in the color mixer
LightKelly Green and green lightOpen in the color mixer
PrintKelly Green and cyan inkOpen in the color mixer
DigitalKelly Green blended with blueOpen in the color mixer

Use Kelly Green in your code

Ready to paste into CSS, Sass, Tailwind, iOS, Android and Flutter. Click the icon to copy a line.

WhereCodeCopy
CSS variable--kelly-green: #4CBB17;
Sass variable$kelly-green: #4CBB17;
Tailwind CSS v4@theme { --color-kelly-green: #4CBB17; }
Tailwind CSS v3 configcolors: { 'kelly-green': '#4CBB17' }
SwiftUIColor(red: 0.298, green: 0.733, blue: 0.09)
UIKitUIColor(red: 0.298, green: 0.733, blue: 0.09, alpha: 1)
Android XML<color name="kelly_green">#FF4CBB17</color>
Flutter and Jetpack ComposeColor(0xFF4CBB17)

Accessibility and contrast

Black text works best on #4CBB17 (8.43:1, AAA). Here is how #4CBB17 does as a text color:

Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
2.49:1 on white
APCA Lc 49
Fails AATry #318800
Large heading text
Body text at 16px. The quick brown fox jumps over the lazy dog.
8.43:1 on black
APCA Lc -54
AAA

Check this color against any background in the contrast checker. WCAG ratios and APCA Lc values measure different things, so one can't stand in for the other. Learn more.

How people with color blindness see Kelly Green

#4CBB17 next to its complement and its two triadic colors, as seen with each type of color blindness.

  • Normal visionhow most people see it
  • Protanopiano red cones, about 1% of men
  • Deuteranopiano green cones, the most common type
  • Tritanopiano blue cones, very rare
  • Achromatopsiano color at all, very rare

#4CBB17 stays easy to tell apart from its complement and triadic colors for the common types of color blindness. Try your own colors in the color blindness simulator.

About the color Kelly Green

An Irish surname

Kelly green takes its name from Kelly, one of the most common family names in Ireland. Both the surname and the color green are popular in Ireland. The name started in the United States, where many Irish families had settled. An older version of the Wikipedia page on shades of green gives 1917 as the first recorded use of kelly green as a color name in English.

Brighter than the flag

A book on color history by Gifford and Peintre notes that kelly green is a little brighter than the green on the Irish flag. It is also the green people most often link with St. Patrick's Day. A deeper green with a blue tint is shamrock green, and Islamic green is darker and purer.

About the code

The code #4CBB17 is the one Wikipedia lists for kelly green, but no paint or dye standard stands behind it. Dark text works better on it than white: black text reaches a contrast ratio of about 8.4 to 1, while white only gets 2.5 to 1. Our contrast checker can test other pairs.

Kelly Green in a user interface

A sample app screen with #4CBB17 as the main color, on a light and a dark theme.

Light theme

Dark theme

Buttons and bars use #4CBB17 as it is. On the light theme, #4CBB17 is too hard to read as text (2.49:1), so links, the badge and outline text use #318800 there (4.51:1). Build a full color scheme around it in the UI color preview.

Color harmonies for Kelly Green

These schemes turn the hue of #4CBB17 around the color wheel. Each swatch links to its own page.

Complementary

Two colors on opposite sides of the wheel. This gives the most contrast.

Open palette
this#4CBB17#8617BB

Analogous

Hues that sit next to each other and look good together.

Open palette
#9EBB17this#4CBB17#17BB34

Triadic

Three hues spaced evenly around the wheel. Bold, but still balanced.

Open palette
this#4CBB17#174CBB#BB174C

Split complementary

A base color plus the two hues on each side of its opposite. Strong contrast that clashes less.

Open palette
this#4CBB17#3417BB#BB179E

Tetradic (rectangle)

Two pairs of opposite colors. Let one color lead and use the others less.

Open palette
this#4CBB17#17BB86#8617BB#BB174C

Square

Four hues 90° apart, spread evenly around the wheel.

Open palette
this#4CBB17#179EBB#8617BB#BB3417

Monochromatic

One hue at different levels of lightness and saturation.

Open palette
#255B0B#43A514#64E427#99EE71#CEF7BB

Gradients with Kelly Green

Four CSS gradients made from #4CBB17. Copy the code, or open one in the gradient generator to change it.

Soft tint

From a pale tint to the full color.

background: linear-gradient(90deg, #DDF3D7, #4CBB17);

Edit in the gradient generator

Deep shade

The color fading into a dark shade.

background: linear-gradient(180deg, #4CBB17, #0F3202);

Edit in the gradient generator

Analogous

Its two neighbors on the color wheel.

background: linear-gradient(135deg, #9EBB17, #4CBB17, #17BB34);

Edit in the gradient generator

Triadic

A bold blend with a triadic color, through a clean middle.

background: linear-gradient(135deg, #4CBB17, #188B89, #174CBB);

Edit in the gradient generator

Shades, tints and tones of Kelly Green

Shades are darker, tints are lighter and tones are grayer. We make them in OKLCH so the steps look even. Hover a step to see its code, or click it to open it.

Design system scale (50 to 950)

Kelly Green sits at step 400. Export the full scale as CSS variables or Tailwind tokens from the picker.

  1. 50
    E8FFE1
  2. 100
    CCFDBE
  3. 200
    ADF099
  4. 300
    83DB68
  5. 400
    4CBB17
  6. 500
    3B9F00
  7. 600
    2E8100
  8. 700
    236600
  9. 800
    1A5000
  10. 900
    113B00
  11. 950
    072400

Closest RAL, Tailwind and CSS colors

The nearest match to #4CBB17 in three color systems that designers and builders use.

RAL ClassicRAL 6018 Yellow green#48A43F, close (ΔE 7.7)Tailwind CSSgreen-500 #22C55E, very close (ΔE 4.9)CSS color nameslimegreen #32CD32, very close (ΔE 4.8)

ΔE is the distance in OKLab: under 2 is hard to see, over 10 is a clearly different color. Browse all RAL colors, the Tailwind palette or the 148 CSS color names. RAL values on screens are only a guide, so check a real color chart before you order paint.

The named colors that look closest to this one (ΔE in OKLab). Browse all shades of green or search the color library.