Palettes / Colors / #243AFF

#243AFF — Vivid Blue

#243AFF is a blue color we call Vivid Blue, closest to the named color RoyalBlue (#4169E1). It belongs to the blue family.

#243AFF 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 #FFE924; it also sits naturally between #24A7FF and #7B24FF. 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 14% · Green 23% · Blue 100%

Cyan 86% · Magenta 77% · Yellow 0% · Key 0%

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

Previews

CSS code for #243AFF

.text { color: #243AFF; }
.background { background-color: #243AFF; }
.border { border: 3px solid #243AFF; }
.text-rgb { color: rgb(36, 58, 255); }
.text-hsl { color: hsl(234, 100%, 57%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #243AFF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(36, 58, 255, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #243AFF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(36, 58, 255, 0.8); }

HTML: <p style="color:#243AFF">Text here</p> · <div style="background-color:#243AFF">Div content here</div>

Shades of #243AFF

Tints of #243AFF

Tones of #243AFF

Color harmonies

Complementary — #FFE924:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #243AFF: #FFFFFF.

How #243AFF 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 #243AFF 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

← #243AFE  ·  #243B00 →

Frequently asked questions

What color is #243AFF?

#243AFF is Vivid Blue, a blue color (RGB 36, 58, 255). Its closest standard named color is RoyalBlue.

What is the RGB and HSL of #243AFF?

#243AFF is RGB 36, 58, 255 — HSL 234°, 100%, 57% — CMYK 86%, 77%, 0%, 0%.

What colors go with #243AFF?

Its complement is #FFE924; analogous partners are #24A7FF and #7B24FF. It also appears in 6+ palettes in our collection.

Can I use #243AFF for text?

White text on #243AFF has a contrast ratio of 6.72:1 (passes WCAG AA); black text gives 3.12:1.