Palettes / Colors / #604FFB

#604FFB — Vivid Blue

#604FFB is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

Color name

Closest CSS keyword: royalblue (#4169E1) — not an exact match. CSS royalblue gives you #4169E1, a different color; use #604FFB 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.

#604FFB 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 #EAFB50; it also sits naturally between #5095FB and #B750FB. 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 38% · Green 31% · Blue 98%

Cyan 62% · Magenta 69% · Yellow 0% · Key 2%

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

Previews

CSS code for #604FFB

.text { color: #604FFB; }
.background { background-color: #604FFB; }
.border { border: 3px solid #604FFB; }
.text-rgb { color: rgb(96, 79, 251); }
.text-hsl { color: hsl(246, 96%, 65%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #604FFB; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(96, 79, 251, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #604FFB; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(96, 79, 251, 0.8); }

HTML: <p style="color:#604FFB">Text here</p> · <div style="background-color:#604FFB">Div content here</div>

Shades of #604FFB

Tints of #604FFB

Tones of #604FFB

Color harmonies

Complementary — #EAFB50:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #604FFB: #FFFFFF.

Semi-transparent (opacity) text on #604FFB

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 #604FFB 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 #604FFB 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

← #604FFA  ·  #604FFC →

Frequently asked questions

What color is #604FFB?

#604FFB is Vivid Blue, a blue color (RGB 96, 79, 251). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #604FFB?

#604FFB is RGB 96, 79, 251 — HSL 246°, 96%, 65% — CMYK 62%, 69%, 0%, 2%.

What colors go with #604FFB?

Its complement is #EAFB50; analogous partners are #5095FB and #B750FB. It also appears in 6+ palettes in our collection.

Can I use #604FFB for text?

White text on #604FFB has a contrast ratio of 5.24:1 (passes WCAG AA); black text gives 4.01:1.