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#81C1E4 Color

#81C1E4 is rgb(129, 193, 228) in RGB, hsl(201, 65%, 70%) in HSL, and about cmyk(43%, 15%, 0%, 11%) in CMYK. It has no registered color name of its own — the closest is Baby Blue (#89CFF0), clearly related but distinguishable side by side at ΔE 5.16. Black text is the more readable choice on this background.

#81C1E4
HEX#81C1E4
RGBrgb(129, 193, 228)
HSLhsl(201, 65%, 70%)
HSVhsv(201, 43%, 89%)
CMYKcmyk(43%, 15%, 0%, 11%)
OKLCHoklch(78% 0.082 233.2)
LABlab(74.71% -14.36 -24.33)
LCHlch(74.71% 28.26 239.45)

What #81C1E4 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 #81C1E4, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Baby Blue#89CFF0ΔE 5.16Cornflower Blue (Crayola)#93CCEAΔE 5.37Sky Blue#87CEEBΔE 5.81Light Sky Blue#87CEFAΔE 6.61Pale Cyan#87D3F8ΔE 6.78Dark Sky Blue#8CBED6ΔE 6.91

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

#81C1E4 Channel Values

How #81C1E4 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 193 · B 2288-bit channels as sent to the display
HSLH 201° · S 65% · L 70%Easiest model for building lighter and darker variants
HSVH 201° · S 43% · V 89%Matches the picker in most design tools
CMYKC 43% · M 15% · Y 0% · K 11%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.97:1 vs white · 10.68:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #81C1E4 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 text1.97:1AA normal AA large AAA normal
TextBlack text10.68:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #81C1E4 in the contrast checker.

Colors That Go With #81C1E4

Pairings derived from color-wheel relationships. The complementary color sits opposite #81C1E4; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#81C1E4
Complementary
#E4A481
Analogous
#81E4D5
Analogous
#8190E4
Triadic
#E481C1
Triadic
#C1E481
Split comp.
#E48190
Split comp.
#E4D581

Tints & Shades of #81C1E4

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

#92CAE8
#A2D2EB
#B3DAEF
#C4E2F3
#D5EAF6
#E6F3FA

Shades

#5BAFDC
#319AD3
#2580B1
#1D6287
#154661
#0C2837

Want a full 50-950 ramp with semantic roles? Generate design tokens from #81C1E4.

How #81C1E4 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#81C1E4
Protanopia#B8B8E4
Protanomaly#A5BCE4
Deuteranopia#AFAFE5
Deuteranomaly#9FB7E5
Tritanopia#78C6C6
Tritanomaly#7CC4D3
Achromatopsia#B9B9B9

Test a full palette in the color blindness simulator.

Using #81C1E4 in Code

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

CSS custom property--color-81c1e4: #81C1E4;
CSS backgroundbackground-color: #81C1E4;
Tailwind configcolors: { 'color-81c1e4': '#81C1E4' }
SwiftUIColor(red: 0.506, green: 0.757, blue: 0.894)
Android XML<color name="color_81c1e4">#81C1E4</color>
SVG fillfill="#81C1E4"

More Blue Colors

#81C1E4 sits in the blue family. These are its neighbours across that family's full range, each with its own breakdown.

000024fafaff00002ef9fafb000033f8fafc000038f8f8ff000042f5faff000047f5f5ff002147007dfa0f52ba1c39bb2a3439372aac4e3cc364609a7abdff979aaab8dbffd6d6ff

#81C1E4 Frequently Asked Questions

What color is #81C1E4?

#81C1E4 is a light blue — rgb(129, 193, 228) in RGB and hsl(201, 65%, 70%) in HSL. It carries no registered color name of its own; the closest named color is Baby Blue (#89CFF0), which is clearly related but distinguishable side by side at a CIE76 distance of 5.16.

What is the RGB value of #81C1E4?

#81C1E4 is rgb(129, 193, 228) — red 129, green 193, and blue 228 on the 0-255 scale.

What is the CMYK value of #81C1E4?

#81C1E4 converts to approximately cmyk(43%, 15%, 0%, 11%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #81C1E4 be black or white?

Black text is the more readable choice. #81C1E4 scores 1.97:1 against white and 10.68:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #81C1E4 as a CSS color keyword?

No. #81C1E4 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 skyblue (#87CEEB) at a CIE76 distance of 5.81, which is clearly related but distinguishable side by side.

Open #81C1E4 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.