Palettes / Colors / #121DFD

#121DFD — Vivid Blue

#121DFD 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 #121DFD 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.

#121DFD 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 #FDF112; it also sits naturally between #1293FD and #7B12FD. 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 7% · Green 11% · Blue 99%

Cyan 93% · Magenta 89% · Yellow 0% · Key 1%

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

Previews

CSS code for #121DFD

.text { color: #121DFD; }
.background { background-color: #121DFD; }
.border { border: 3px solid #121DFD; }
.text-rgb { color: rgb(18, 29, 253); }
.text-hsl { color: hsl(237, 98%, 53%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #121DFD; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(18, 29, 253, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #121DFD; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(18, 29, 253, 0.8); }

HTML: <p style="color:#121DFD">Text here</p> · <div style="background-color:#121DFD">Div content here</div>

Shades of #121DFD

Tints of #121DFD

Tones of #121DFD

Color harmonies

Complementary — #FDF112:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #121DFD: #FFFFFF.

Semi-transparent (opacity) text on #121DFD

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 #121DFD 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 #121DFD 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

← #121DFC  ·  #121DFE →

Frequently asked questions

What color is #121DFD?

#121DFD is Vivid Blue, a blue color (RGB 18, 29, 253). Its closest standard named color is Blue.

What is the RGB and HSL of #121DFD?

#121DFD is RGB 18, 29, 253 — HSL 237°, 98%, 53% — CMYK 93%, 89%, 0%, 1%.

What colors go with #121DFD?

Its complement is #FDF112; analogous partners are #1293FD and #7B12FD. It also appears in 6+ palettes in our collection.

Can I use #121DFD for text?

White text on #121DFD has a contrast ratio of 8.02:1 (passes WCAG AA); black text gives 2.62:1.