Palettes / Colors / #031FBF

#031FBF — Vivid Blue

#031FBF is a blue color we call Vivid Blue, closest to the named color DarkBlue (#00008B). It belongs to the blue family.

Color name

Closest CSS keyword: darkblue (#00008B) — not an exact match. CSS darkblue gives you #00008B, a different color; use #031FBF 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.

#031FBF 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 #BFA303; it also sits naturally between #037DBF and #4503BF. In the palettes below you can see it working alongside real color combinations from our collection.

Copy HEX Copy RGB Copy HSL Download PNG swatch SVG

Color values

RGB & CMYK percentages

Red 1% · Green 12% · Blue 75%

Cyan 98% · Magenta 84% · Yellow 0% · Key 25%

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

Previews

CSS code for #031FBF

.text { color: #031FBF; }
.background { background-color: #031FBF; }
.border { border: 3px solid #031FBF; }
.text-rgb { color: rgb(3, 31, 191); }
.text-hsl { color: hsl(231, 97%, 38%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #031FBF; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(3, 31, 191, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #031FBF; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(3, 31, 191, 0.8); }

HTML: <p style="color:#031FBF">Text here</p> · <div style="background-color:#031FBF">Div content here</div>

Shades of #031FBF

Tints of #031FBF

Tones of #031FBF

Color harmonies

Complementary — #BFA303:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #031FBF: #FFFFFF.

Semi-transparent (opacity) text on #031FBF

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 #031FBF 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 #031FBF 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

← #031FBE  ·  #031FC0 →

Frequently asked questions

What color is #031FBF?

#031FBF is Vivid Blue, a blue color (RGB 3, 31, 191). Its closest standard named color is DarkBlue.

What is the RGB and HSL of #031FBF?

#031FBF is RGB 3, 31, 191 — HSL 231°, 97%, 38% — CMYK 98%, 84%, 0%, 25%.

What colors go with #031FBF?

Its complement is #BFA303; analogous partners are #037DBF and #4503BF. It also appears in 6+ palettes in our collection.

Can I use #031FBF for text?

White text on #031FBF has a contrast ratio of 10.76:1 (passes WCAG AA); black text gives 1.95:1.