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#81BEE4 Color

#81BEE4 is rgb(129, 190, 228) in RGB, hsl(203, 65%, 70%) in HSL, and about cmyk(43%, 17%, 0%, 11%) in CMYK. It has no registered color name of its own — the closest is Aero (#7CB9E8), clearly related but distinguishable side by side at ΔE 5.18. Black text is the more readable choice on this background.

#81BEE4
HEX#81BEE4
RGBrgb(129, 190, 228)
HSLhsl(203, 65%, 70%)
HSVhsv(203, 43%, 89%)
CMYKcmyk(43%, 17%, 0%, 11%)
OKLCHoklch(77.4% 0.083 236.7)
LABlab(73.87% -12.91 -25.61)
LCHlch(73.87% 28.68 243.24)

What #81BEE4 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 #81BEE4, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Aero#7CB9E8ΔE 5.18Light Sky Blue#87CEFAΔE 6.62Cornflower Blue (Crayola)#93CCEAΔE 6.78Baby Blue#89CFF0ΔE 6.84Sky Blue#87CEEBΔE 7.8Pale Cerulean#9BC4E2ΔE 7.84

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

#81BEE4 Channel Values

How #81BEE4 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 129 · G 190 · B 2288-bit channels as sent to the display
HSLH 203° · S 65% · L 70%Easiest model for building lighter and darker variants
HSVH 203° · S 43% · V 89%Matches the picker in most design tools
CMYKC 43% · M 17% · Y 0% · K 11%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.02:1 vs white · 10.42:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81BEE4 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 text2.02:1AA normal AA large AAA normal
TextBlack text10.42:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81BEE4 in the contrast checker.

Colors That Go With #81BEE4

Pairings derived from color-wheel relationships. The complementary color sits opposite #81BEE4; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81BEE4
Complementary
#E4A781
Analogous
#81E4D9
Analogous
#818CE4
Triadic
#E481BE
Triadic
#BEE481
Split comp.
#E4818C
Split comp.
#E4D981

Tints & Shades of #81BEE4

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

#92C7E8
#A2CFEB
#B3D8EF
#C4E1F3
#D5E9F6
#E6F2FA

Shades

#5BABDC
#3195D3
#257BB1
#1D5E87
#154461
#0C2637

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81BEE4.

How #81BEE4 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#81BEE4
Protanopia#B5B5E4
Protanomaly#A3B9E4
Deuteranopia#ADADE5
Deuteranomaly#9DB4E5
Tritanopia#78C3C3
Tritanomaly#7BC1D1
Achromatopsia#B7B7B7

Test a full palette in the color blindness simulator.

Using #81BEE4 in Code

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

CSS custom property--color-81bee4: #81BEE4;
CSS backgroundbackground-color: #81BEE4;
Tailwind configcolors: { 'color-81bee4': '#81BEE4' }
SwiftUIColor(red: 0.506, green: 0.745, blue: 0.894)
Android XML<color name="color_81bee4">#81BEE4</color>
SVG fillfill="#81BEE4"

More Blue Colors

#81BEE4 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#81BEE4 Frequently Asked Questions

What color is #81BEE4?

#81BEE4 is a light blue — rgb(129, 190, 228) in RGB and hsl(203, 65%, 70%) in HSL. It carries no registered color name of its own; the closest named color is Aero (#7CB9E8), which is clearly related but distinguishable side by side at a CIE76 distance of 5.18.

What is the RGB value of #81BEE4?

#81BEE4 is rgb(129, 190, 228) — red 129, green 190, and blue 228 on the 0-255 scale.

What is the CMYK value of #81BEE4?

#81BEE4 converts to approximately cmyk(43%, 17%, 0%, 11%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81BEE4 be black or white?

Black text is the more readable choice. #81BEE4 scores 2.02:1 against white and 10.42:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81BEE4 as a CSS color keyword?

No. #81BEE4 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 lightskyblue (#87CEFA) at a CIE76 distance of 6.62, which is clearly related but distinguishable side by side.

Open #81BEE4 in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

Keep exploring: every blue in the color library, the guide to shades of blue, or the full color library.