Palettes / Colors / #021EF4

#021EF4 — Vivid Blue

#021EF4 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 #021EF4 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.

#021EF4 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 #F2D602; it also sits naturally between #0296F2 and #5E02F2. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 1% · Green 12% · Blue 96%

Cyan 99% · Magenta 88% · Yellow 0% · Key 4%

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

Previews

CSS code for #021EF4

.text { color: #021EF4; }
.background { background-color: #021EF4; }
.border { border: 3px solid #021EF4; }
.text-rgb { color: rgb(2, 30, 244); }
.text-hsl { color: hsl(233, 98%, 48%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #021EF4; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(2, 30, 244, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #021EF4; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(2, 30, 244, 0.8); }

HTML: <p style="color:#021EF4">Text here</p> · <div style="background-color:#021EF4">Div content here</div>

Shades of #021EF4

Tints of #021EF4

Tones of #021EF4

Color harmonies

Complementary — #F2D602:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #021EF4: #FFFFFF.

Semi-transparent (opacity) text on #021EF4

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 #021EF4 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 #021EF4 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

← #021EF3  ·  #021EF5 →

Frequently asked questions

What color is #021EF4?

#021EF4 is Vivid Blue, a blue color (RGB 2, 30, 244). Its closest standard named color is Blue.

What is the RGB and HSL of #021EF4?

#021EF4 is RGB 2, 30, 244 — HSL 233°, 98%, 48% — CMYK 99%, 88%, 0%, 4%.

What colors go with #021EF4?

Its complement is #F2D602; analogous partners are #0296F2 and #5E02F2. It also appears in 6+ palettes in our collection.

Can I use #021EF4 for text?

White text on #021EF4 has a contrast ratio of 8.42:1 (passes WCAG AA); black text gives 2.49:1.