Palettes / Colors / #403DCE

#403DCE — Blue

#403DCE is a blue color we call 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 #403DCE 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.

#403DCE 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 #CCCE3B; it also sits naturally between #3B82CE and #873BCE. 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 25% · Green 24% · Blue 81%

Cyan 69% · Magenta 70% · Yellow 0% · Key 19%

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

Previews

CSS code for #403DCE

.text { color: #403DCE; }
.background { background-color: #403DCE; }
.border { border: 3px solid #403DCE; }
.text-rgb { color: rgb(64, 61, 206); }
.text-hsl { color: hsl(241, 60%, 52%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #403DCE; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(64, 61, 206, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #403DCE; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(64, 61, 206, 0.8); }

HTML: <p style="color:#403DCE">Text here</p> · <div style="background-color:#403DCE">Div content here</div>

Shades of #403DCE

Tints of #403DCE

Tones of #403DCE

Color harmonies

Complementary — #CCCE3B:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #403DCE: #FFFFFF.

Semi-transparent (opacity) text on #403DCE

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 #403DCE 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 #403DCE 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

← #403DCD  ·  #403DCF →

Frequently asked questions

What color is #403DCE?

#403DCE is Blue, a blue color (RGB 64, 61, 206). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #403DCE?

#403DCE is RGB 64, 61, 206 — HSL 241°, 60%, 52% — CMYK 69%, 70%, 0%, 19%.

What colors go with #403DCE?

Its complement is #CCCE3B; analogous partners are #3B82CE and #873BCE. It also appears in 6+ palettes in our collection.

Can I use #403DCE for text?

White text on #403DCE has a contrast ratio of 7.56:1 (passes WCAG AA); black text gives 2.78:1.