Palettes / Colors / #256DA4

#256DA4 — Blue

#256DA4 is a blue color we call Blue, closest to the named color SteelBlue (#4682B4). It belongs to the blue family.

Color name

Closest CSS keyword: steelblue (#4682B4) — not an exact match. CSS steelblue gives you #4682B4, a different color; use #256DA4 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.

#256DA4 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 #A25B25; it also sits naturally between #25A29A and #252DA2. 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 43% · Blue 64%

Cyan 77% · Magenta 34% · Yellow 0% · Key 36%

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

Previews

CSS code for #256DA4

.text { color: #256DA4; }
.background { background-color: #256DA4; }
.border { border: 3px solid #256DA4; }
.text-rgb { color: rgb(37, 109, 164); }
.text-hsl { color: hsl(206, 63%, 39%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #256DA4; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(37, 109, 164, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #256DA4; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(37, 109, 164, 0.8); }

HTML: <p style="color:#256DA4">Text here</p> · <div style="background-color:#256DA4">Div content here</div>

Shades of #256DA4

Tints of #256DA4

Tones of #256DA4

Color harmonies

Complementary — #A25B25:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #256DA4: #FFFFFF.

Semi-transparent (opacity) text on #256DA4

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 #256DA4 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 #256DA4 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

← #256DA3  ·  #256DA5 →

Frequently asked questions

What color is #256DA4?

#256DA4 is Blue, a blue color (RGB 37, 109, 164). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #256DA4?

#256DA4 is RGB 37, 109, 164 — HSL 206°, 63%, 39% — CMYK 77%, 34%, 0%, 36%.

What colors go with #256DA4?

Its complement is #A25B25; analogous partners are #25A29A and #252DA2. It also appears in 6+ palettes in our collection.

Can I use #256DA4 for text?

White text on #256DA4 has a contrast ratio of 5.52:1 (passes WCAG AA); black text gives 3.80:1.