Palettes / Colors / #170BC5

#170BC5 — Vivid Blue

#170BC5 is a blue color we call Vivid Blue, closest to the named color Blue (#0000FF). It belongs to the blue family.

Color name

Closest CSS keyword: blue (#0000FF) — not an exact match. CSS blue gives you #0000FF, a different color; use #170BC5 when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#170BC5 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 #B9C60C; it also sits naturally between #0C5CC6 and #750CC6. 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 9% · Green 4% · Blue 77%

Cyan 88% · Magenta 94% · Yellow 0% · Key 23%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #170BC5

.text { color: #170BC5; }
.background { background-color: #170BC5; }
.border { border: 3px solid #170BC5; }
.text-rgb { color: rgb(23, 11, 197); }
.text-hsl { color: hsl(244, 89%, 41%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #170BC5; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(23, 11, 197, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #170BC5; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(23, 11, 197, 0.8); }

HTML: <p style="color:#170BC5">Text here</p> · <div style="background-color:#170BC5">Div content here</div>

Shades of #170BC5

Tints of #170BC5

Tones of #170BC5

Color harmonies

Complementary — #B9C60C:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #170BC5: #FFFFFF.

Semi-transparent (opacity) text on #170BC5

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #170BC5 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 a similar color

These palettes use a close neighbour of #170BC5 rather than the exact color:

Similar colors

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

Browse neighbouring colors

← #170BC4  ·  #170BC6 →

Frequently asked questions

What color is #170BC5?

#170BC5 is Vivid Blue, a blue color (RGB 23, 11, 197). Its closest standard named color is Blue.

What is the RGB and HSL of #170BC5?

#170BC5 is RGB 23, 11, 197 — HSL 244°, 89%, 41% — CMYK 88%, 94%, 0%, 23%.

What colors go with #170BC5?

Its complement is #B9C60C; analogous partners are #0C5CC6 and #750CC6. It also appears in 6+ palettes in our collection.

Can I use #170BC5 for text?

White text on #170BC5 has a contrast ratio of 11.11:1 (passes WCAG AA); black text gives 1.89:1.