Palettes / Colors / #263F82

#263F82 — Blue

#263F82 is a blue color we call Blue, closest to the named color DarkSlateBlue (#483D8B). It belongs to the blue family.

Color name

Closest CSS keyword: darkslateblue (#483D8B) — not an exact match. CSS darkslateblue gives you #483D8B, a different color; use #263F82 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.

#263F82 is a cool blue color associated with trust, calm and professionalism. It sits comfortably in the middle: usable for large areas in soft schemes, or as a supporting color beside something stronger.

Its strongest partner is its complement #826A26; it also sits naturally between #266D82 and #3B2682. 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 15% · Green 25% · Blue 51%

Cyan 71% · Magenta 52% · Yellow 0% · Key 49%

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

Previews

CSS code for #263F82

.text { color: #263F82; }
.background { background-color: #263F82; }
.border { border: 3px solid #263F82; }
.text-rgb { color: rgb(38, 63, 130); }
.text-hsl { color: hsl(224, 55%, 33%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #263F82; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(38, 63, 130, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #263F82; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(38, 63, 130, 0.8); }

HTML: <p style="color:#263F82">Text here</p> · <div style="background-color:#263F82">Div content here</div>

Shades of #263F82

Tints of #263F82

Tones of #263F82

Color harmonies

Complementary — #826A26:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #263F82: #FFFFFF.

Semi-transparent (opacity) text on #263F82

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 #263F82 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 #263F82 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

← #263F81  ·  #263F83 →

Frequently asked questions

What color is #263F82?

#263F82 is Blue, a blue color (RGB 38, 63, 130). Its closest standard named color is DarkSlateBlue.

What is the RGB and HSL of #263F82?

#263F82 is RGB 38, 63, 130 — HSL 224°, 55%, 33% — CMYK 71%, 52%, 0%, 49%.

What colors go with #263F82?

Its complement is #826A26; analogous partners are #266D82 and #3B2682. It also appears in 6+ palettes in our collection.

Can I use #263F82 for text?

White text on #263F82 has a contrast ratio of 9.93:1 (passes WCAG AA); black text gives 2.12:1.