Palettes / Colors / #337FFA
#337FFA — Vivid Blue
#337FFA is a blue color we call Vivid Blue, closest to the named color DodgerBlue (#1E90FF). It belongs to the blue family.
Color name
Closest CSS keyword: dodgerblue (#1E90FF) — not an exact match. CSS dodgerblue gives you #1E90FF, a different color; use #337FFA 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.
#337FFA 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 #FAAE33; it also sits naturally between #33E3FA and #4A33FA. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #337FFA |
|---|---|
| RGB | 51, 127, 250 |
| HSL | 217°, 95%, 59% |
| HSV | 217°, 80%, 98% |
| CMYK | 80%, 49%, 0%, 2% |
| XYZ | 26.21, 22.78, 93.46 |
| Yxy | 22.78, 0.1840, 0.1599 |
| CIE-Lab | 54.85, 20.06, -67.92 |
| Hunter Lab | 47.73, 17.30, -88.55 |
RGB & CMYK percentages
Red 20% · Green 50% · Blue 98%
Cyan 80% · Magenta 49% · Yellow 0% · Key 2%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #337FFA
.text { color: #337FFA; }
.background { background-color: #337FFA; }
.border { border: 3px solid #337FFA; }
.text-rgb { color: rgb(51, 127, 250); }
.text-hsl { color: hsl(217, 95%, 59%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #337FFA; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(51, 127, 250, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #337FFA; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(51, 127, 250, 0.8); }
HTML: <p style="color:#337FFA">Text here</p> · <div style="background-color:#337FFA">Div content here</div>
Shades of #337FFA
Tints of #337FFA
Tones of #337FFA
Color harmonies
Complementary — #FAAE33:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 3.78:1 AA large only |
|---|---|
| Against black text | 5.56:1 AA |
Best text color on #337FFA: #000000.
Semi-transparent (opacity) text on #337FFA
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #337FFA: ·
How #337FFA 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 #337FFA 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
Frequently asked questions
What color is #337FFA?
#337FFA is Vivid Blue, a blue color (RGB 51, 127, 250). Its closest standard named color is DodgerBlue.
What is the RGB and HSL of #337FFA?
#337FFA is RGB 51, 127, 250 — HSL 217°, 95%, 59% — CMYK 80%, 49%, 0%, 2%.
What colors go with #337FFA?
Its complement is #FAAE33; analogous partners are #33E3FA and #4A33FA. It also appears in 6+ palettes in our collection.
Can I use #337FFA for text?
Black text on #337FFA has a contrast ratio of 5.56:1 (passes WCAG AA); white text gives 3.78:1.