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#1BBB81 Color

#1BBB81 is rgb(27, 187, 129) in RGB, hsl(158, 75%, 42%) in HSL, and about cmyk(86%, 0%, 31%, 27%) in CMYK. It has no registered color name of its own — the closest is Green (Crayola) (#1CAC78), clearly related but distinguishable side by side at ΔE 6.44. Black text is the more readable choice on this background.

#1BBB81
HEX#1BBB81
RGBrgb(27, 187, 129)
HSLhsl(158, 75%, 42%)
HSVhsv(158, 86%, 73%)
CMYKcmyk(86%, 0%, 31%, 27%)
OKLCHoklch(70.2% 0.15 161.6)
LABlab(67.43% -50.60 18.07)
LCHlch(67.43% 53.73 160.35)

What #1BBB81 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 #1BBB81, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Green (Crayola)#1CAC78ΔE 6.44Green Frog#00A86BΔE 7.31Medium Sea Green#3CB371ΔE 7.62Green (Munsell)#00A877ΔE 8.01Caribbean Green#00CC99ΔE 8.07Mountain Meadow#30BA8FΔE 8.72

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

#1BBB81 Channel Values

How #1BBB81 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 27 · G 187 · B 1298-bit channels as sent to the display
HSLH 158° · S 75% · L 42%Easiest model for building lighter and darker variants
HSVH 158° · S 86% · V 73%Matches the picker in most design tools
CMYKC 86% · M 0% · Y 31% · K 27%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.48:1 vs white · 8.47:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #1BBB81 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 text2.48:1AA normal AA large AAA normal
TextBlack text8.47:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #1BBB81 in the contrast checker.

Colors That Go With #1BBB81

Pairings derived from color-wheel relationships. The complementary color sits opposite #1BBB81; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#1BBB81
Complementary
#BB1B56
Analogous
#1BBB30
Analogous
#1BA6BB
Triadic
#811BBB
Triadic
#BB811B
Split comp.
#BB1BA6
Split comp.
#BB301B

Tints & Shades of #1BBB81

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

#20DF99
#44E4A9
#67E9BA
#8BEECA
#AFF4DA
#D2F9EB

Shades

#18A571
#148A5F
#117450
#0D593D
#0A432E
#06281C

Want a full 50-950 ramp with semantic roles? Generate design tokens from #1BBB81.

How #1BBB81 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#1BBB81
Protanopia#ACAC82
Protanomaly#8AB281
Deuteranopia#9D9D85
Deuteranomaly#7DAA83
Tritanopia#3DB5B5
Tritanomaly#32B7A3
Achromatopsia#A4A4A4

Test a full palette in the color blindness simulator.

Using #1BBB81 in Code

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

CSS custom property--color-1bbb81: #1BBB81;
CSS backgroundbackground-color: #1BBB81;
Tailwind configcolors: { 'color-1bbb81': '#1BBB81' }
SwiftUIColor(red: 0.106, green: 0.733, blue: 0.506)
Android XML<color name="color_1bbb81">#1BBB81</color>
SVG fillfill="#1BBB81"

More Green Colors

#1BBB81 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#1BBB81 Frequently Asked Questions

What color is #1BBB81?

#1BBB81 is a mid-tone green — rgb(27, 187, 129) in RGB and hsl(158, 75%, 42%) in HSL. It carries no registered color name of its own; the closest named color is Green (Crayola) (#1CAC78), which is clearly related but distinguishable side by side at a CIE76 distance of 6.44.

What is the RGB value of #1BBB81?

#1BBB81 is rgb(27, 187, 129) — red 27, green 187, and blue 129 on the 0-255 scale.

What is the CMYK value of #1BBB81?

#1BBB81 converts to approximately cmyk(86%, 0%, 31%, 27%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #1BBB81 be black or white?

Black text is the more readable choice. #1BBB81 scores 2.48:1 against white and 8.47:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #1BBB81 as a CSS color keyword?

No. #1BBB81 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 mediumseagreen (#3CB371) at a CIE76 distance of 7.62, which is clearly related but distinguishable side by side.

Open #1BBB81 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.