Palettes / Colors / #309DFD

#309DFD — Vivid Blue

#309DFD 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 #309DFD 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.

#309DFD 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 #FD9030; it also sits naturally between #30FDF6 and #3037FD. 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 19% · Green 62% · Blue 99%

Cyan 81% · Magenta 38% · Yellow 0% · Key 1%

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

Previews

CSS code for #309DFD

.text { color: #309DFD; }
.background { background-color: #309DFD; }
.border { border: 3px solid #309DFD; }
.text-rgb { color: rgb(48, 157, 253); }
.text-hsl { color: hsl(208, 98%, 59%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #309DFD; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(48, 157, 253, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #309DFD; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(48, 157, 253, 0.8); }

HTML: <p style="color:#309DFD">Text here</p> · <div style="background-color:#309DFD">Div content here</div>

Shades of #309DFD

Tints of #309DFD

Tones of #309DFD

Color harmonies

Complementary — #FD9030:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #309DFD: #000000.

Semi-transparent (opacity) text on #309DFD

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 #309DFD 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 #309DFD 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

← #309DFC  ·  #309DFE →

Frequently asked questions

What color is #309DFD?

#309DFD is Vivid Blue, a blue color (RGB 48, 157, 253). Its closest standard named color is DodgerBlue.

What is the RGB and HSL of #309DFD?

#309DFD is RGB 48, 157, 253 — HSL 208°, 98%, 59% — CMYK 81%, 38%, 0%, 1%.

What colors go with #309DFD?

Its complement is #FD9030; analogous partners are #30FDF6 and #3037FD. It also appears in 6+ palettes in our collection.

Can I use #309DFD for text?

Black text on #309DFD has a contrast ratio of 7.37:1 (passes WCAG AA); white text gives 2.85:1.