Vivid Cerulean (#00AAEE)

The hex code for Vivid Cerulean is #00AAEE. It is rgb(0, 170, 238) in RGB, hsl(197, 100%, 47%) in HSL, and about cmyk(100%, 29%, 0%, 7%) in CMYK — a mid-tone teal. Black text is the more readable choice on this background.

#00AAEE

HEX#00AAEE

RGBrgb(0, 170, 238)

HSLhsl(197, 100%, 47%)

HSVhsv(197, 100%, 93%)

CMYKcmyk(100%, 29%, 0%, 7%)

OKLCHoklch(69.8% 0.151 236.1)

LABlab(64.96% -19.01 -45.08)

LCHlch(64.96% 48.93 247.14)

Colors Closest to Vivid Cerulean

Vivid Cerulean is a registered color name. 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.

Microsoft Blue#00A2EDΔE 5.45 Twitter Blue#26A7DEΔE 7.18 Picton Blue#45B1E8ΔE 8.33 Deep Sky Blue#00BFFFΔE 8.67 Rich Electric Blue#0892D0ΔE 9.61 Blue Jeans#5DADECΔE 9.86

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

#00AAEE Channel Values

How Vivid Cerulean breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 0 · G 170 · B 238	8-bit channels as sent to the display
HSL	H 197° · S 100% · L 47%	Easiest model for building lighter and darker variants
HSV	H 197° · S 100% · V 93%	Matches the picker in most design tools
CMYK	C 100% · M 29% · Y 0% · K 7%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	2.63:1 vs white · 7.98:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Vivid Cerulean 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.

TextWhite text2.63:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text7.98:1AA normal ✓AA large ✓AAA normal ✓

Need a specific ratio against another background? Open #00AAEE in the contrast checker.

Colors That Go With Vivid Cerulean

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

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of Vivid Cerulean

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #00AAEE.

How Vivid Cerulean 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#00AAEE

Protanopia#9C9CEE

Protanomaly#7CA2EE

Deuteranopia#8E8EEF

Deuteranomaly#709AEF

Tritanopia#00B4B4

Tritanomaly#00B0CE

Achromatopsia#A0A0A0

Test a full palette in the color blindness simulator.

Using #00AAEE in Code

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

CSS custom property--vivid-cerulean: #00AAEE;

CSS backgroundbackground-color: #00AAEE;

Tailwind configcolors: { 'vivid-cerulean': '#00AAEE' }

SwiftUIColor(red: 0.000, green: 0.667, blue: 0.933)

Android XML<color name="vivid_cerulean">#00AAEE</color>

SVG fillfill="#00AAEE"

More Teal Colors

Vivid Cerulean sits in the tealfamily. These are its neighbours across that family's full range, each with its own breakdown.

00b2b3 00a6f4 00b5b8 00a693 00b8db 00a4db 00bba7 00a2ed 00bcff 009e9e 00bdbd 0099cc 01796f 106058 1dacd6 2b748c 3ab09e 5bb0cd 7afdff 99ffff b9e3f3 d8eff8 002d2e 007399

#00AAEE Frequently Asked Questions

What is the hex code for Vivid Cerulean?

The hex code for Vivid Cerulean is #00AAEE. That is rgb(0, 170, 238) in RGB, hsl(197, 100%, 47%) in HSL, and approximately cmyk(100%, 29%, 0%, 7%) in CMYK.

What is the RGB value of #00AAEE?

#00AAEE is rgb(0, 170, 238) — red 0, green 170, and blue 238 on the 0-255 scale.

What is the CMYK value of #00AAEE?

#00AAEE converts to approximately cmyk(100%, 29%, 0%, 7%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #00AAEE be black or white?

Black text is the more readable choice. #00AAEE scores 2.63:1 against white and 7.98:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #00AAEE as a CSS color keyword?

No. #00AAEE 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 deepskyblue (#00BFFF) at a CIE76 distance of 8.67, which is clearly related but distinguishable side by side.

Open Vivid Cerulean in a Tool

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