Palettes / Colors / #166FFC
#166FFC — Vivid Blue
#166FFC is a blue color we call Vivid Blue, closest to the named color DodgerBlue (#1E90FF). It belongs to the blue family.
Color name
Closest CSS keyword: dodgerblue (#1E90FF) — not an exact match. CSS dodgerblue gives you #1E90FF, a different color; use #166FFC 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.
#166FFC 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 #FBA418; it also sits naturally between #18E1FB and #3218FB. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #166FFC |
|---|---|
| RGB | 22, 111, 252 |
| HSL | 217°, 97%, 54% |
| HSV | 217°, 91%, 99% |
| CMYK | 91%, 56%, 0%, 1% |
| XYZ | 23.59, 18.57, 94.44 |
| Yxy | 18.57, 0.1727, 0.1359 |
| CIE-Lab | 50.18, 28.95, -76.63 |
| Hunter Lab | 43.09, 24.99, -106.05 |
RGB & CMYK percentages
Red 9% · Green 44% · Blue 99%
Cyan 91% · Magenta 56% · Yellow 0% · Key 1%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #166FFC
.text { color: #166FFC; }
.background { background-color: #166FFC; }
.border { border: 3px solid #166FFC; }
.text-rgb { color: rgb(22, 111, 252); }
.text-hsl { color: hsl(217, 97%, 54%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #166FFC; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(22, 111, 252, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #166FFC; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(22, 111, 252, 0.8); }
HTML: <p style="color:#166FFC">Text here</p> · <div style="background-color:#166FFC">Div content here</div>
Shades of #166FFC
Tints of #166FFC
Tones of #166FFC
Color harmonies
Complementary — #FBA418:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 4.46:1 AA large only |
|---|---|
| Against black text | 4.71:1 AA |
Best text color on #166FFC: #000000.
Semi-transparent (opacity) text on #166FFC
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #166FFC: ·
How #166FFC 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 #166FFC 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
Frequently asked questions
What color is #166FFC?
#166FFC is Vivid Blue, a blue color (RGB 22, 111, 252). Its closest standard named color is DodgerBlue.
What is the RGB and HSL of #166FFC?
#166FFC is RGB 22, 111, 252 — HSL 217°, 97%, 54% — CMYK 91%, 56%, 0%, 1%.
What colors go with #166FFC?
Its complement is #FBA418; analogous partners are #18E1FB and #3218FB. It also appears in 6+ palettes in our collection.
Can I use #166FFC for text?
Black text on #166FFC has a contrast ratio of 4.71:1 (passes WCAG AA); white text gives 4.46:1.