Palettes / Colors / #155EAB

#155EAB — Vivid Blue

#155EAB is a blue color we call Vivid Blue, closest to the named color Teal (#008080). It belongs to the blue family.

#155EAB is a cool blue color associated with trust, calm and professionalism. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #AC6315; it also sits naturally between #15AAAC and #1815AC. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 8% · Green 37% · Blue 67%

Cyan 88% · Magenta 45% · Yellow 0% · Key 33%

Previews

CSS code for #155EAB

.text { color: #155EAB; }
.background { background-color: #155EAB; }
.border { border: 3px solid #155EAB; }
.text-rgb { color: rgb(21, 94, 171); }
.text-hsl { color: hsl(211, 78%, 38%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #155EAB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(21, 94, 171, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #155EAB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(21, 94, 171, 0.8); }

HTML: <p style="color:#155EAB">Text here</p> · <div style="background-color:#155EAB">Div content here</div>

Shades of #155EAB

Tints of #155EAB

Tones of #155EAB

Color harmonies

Complementary — #AC6315:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #155EAB: #FFFFFF.

How #155EAB looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with #155EAB

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #155EAA  ·  #155EAC →

Frequently asked questions

What color is #155EAB?

#155EAB is Vivid Blue, a blue color (RGB 21, 94, 171). Its closest standard named color is Teal.

What is the RGB and HSL of #155EAB?

#155EAB is RGB 21, 94, 171 — HSL 211°, 78%, 38% — CMYK 88%, 45%, 0%, 33%.

What colors go with #155EAB?

Its complement is #AC6315; analogous partners are #15AAAC and #1815AC. It also appears in 6+ palettes in our collection.

Can I use #155EAB for text?

White text on #155EAB has a contrast ratio of 6.52:1 (passes WCAG AA); black text gives 3.22:1.