Palettes / Colors / #154D71

#154D71 — Deep Blue

#154D71 is a blue color we call Deep Blue, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the blue family.

#154D71 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 #703815; it also sits naturally between #157065 and #151F70. 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 8% · Green 30% · Blue 44%

Cyan 81% · Magenta 32% · Yellow 0% · Key 56%

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

Previews

CSS code for #154D71

.text { color: #154D71; }
.background { background-color: #154D71; }
.border { border: 3px solid #154D71; }
.text-rgb { color: rgb(21, 77, 113); }
.text-hsl { color: hsl(203, 69%, 26%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #154D71; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(21, 77, 113, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #154D71; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(21, 77, 113, 0.8); }

HTML: <p style="color:#154D71">Text here</p> · <div style="background-color:#154D71">Div content here</div>

Shades of #154D71

Tints of #154D71

Tones of #154D71

Color harmonies

Complementary — #703815:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #154D71: #FFFFFF.

How #154D71 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 #154D71

Palettes with a similar color

These palettes use a close neighbour of #154D71 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

← #154D70  ·  #154D72 →

Frequently asked questions

What color is #154D71?

#154D71 is Deep Blue, a blue color (RGB 21, 77, 113). Its closest standard named color is DarkSlateGray.

What is the RGB and HSL of #154D71?

#154D71 is RGB 21, 77, 113 — HSL 203°, 69%, 26% — CMYK 81%, 32%, 0%, 56%.

What colors go with #154D71?

Its complement is #703815; analogous partners are #157065 and #151F70. It also appears in 6+ palettes in our collection.

Can I use #154D71 for text?

White text on #154D71 has a contrast ratio of 9.01:1 (passes WCAG AA); black text gives 2.33:1.