Palettes / Colors / #280FCB

#280FCB — Vivid Blue

#280FCB 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 #280FCB 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.

#280FCB 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 #B3CC0F; it also sits naturally between #0F55CC and #870FCC. 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 16% · Green 6% · Blue 80%

Cyan 80% · Magenta 93% · Yellow 0% · Key 20%

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

Previews

CSS code for #280FCB

.text { color: #280FCB; }
.background { background-color: #280FCB; }
.border { border: 3px solid #280FCB; }
.text-rgb { color: rgb(40, 15, 203); }
.text-hsl { color: hsl(248, 86%, 43%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #280FCB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(40, 15, 203, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #280FCB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(40, 15, 203, 0.8); }

HTML: <p style="color:#280FCB">Text here</p> · <div style="background-color:#280FCB">Div content here</div>

Shades of #280FCB

Tints of #280FCB

Tones of #280FCB

Color harmonies

Complementary — #B3CC0F:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #280FCB: #FFFFFF.

Semi-transparent (opacity) text on #280FCB

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 #280FCB 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 #280FCB 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

← #280FCA  ·  #280FCC →

Frequently asked questions

What color is #280FCB?

#280FCB is Vivid Blue, a blue color (RGB 40, 15, 203). Its closest standard named color is Blue.

What is the RGB and HSL of #280FCB?

#280FCB is RGB 40, 15, 203 — HSL 248°, 86%, 43% — CMYK 80%, 93%, 0%, 20%.

What colors go with #280FCB?

Its complement is #B3CC0F; analogous partners are #0F55CC and #870FCC. It also appears in 6+ palettes in our collection.

Can I use #280FCB for text?

White text on #280FCB has a contrast ratio of 10.39:1 (passes WCAG AA); black text gives 2.02:1.