Palettes / Colors / #263D83
#263D83 — Blue
#263D83 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 #263D83 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.
#263D83 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 #826B26; it also sits naturally between #266B82 and #3D2682. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #263D83 |
|---|---|
| RGB | 38, 61, 131 |
| HSL | 225°, 55%, 33% |
| HSV | 225°, 71%, 51% |
| CMYK | 71%, 53%, 0%, 49% |
| XYZ | 6.56, 5.39, 22.17 |
| Yxy | 5.39, 0.1924, 0.1579 |
| CIE-Lab | 27.81, 16.30, -42.11 |
| Hunter Lab | 23.21, 11.28, -43.23 |
RGB & CMYK percentages
Red 15% · Green 24% · Blue 51%
Cyan 71% · Magenta 53% · Yellow 0% · Key 49%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #263D83
.text { color: #263D83; }
.background { background-color: #263D83; }
.border { border: 3px solid #263D83; }
.text-rgb { color: rgb(38, 61, 131); }
.text-hsl { color: hsl(225, 55%, 33%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #263D83; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(38, 61, 131, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #263D83; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(38, 61, 131, 0.8); }
HTML: <p style="color:#263D83">Text here</p> · <div style="background-color:#263D83">Div content here</div>
Shades of #263D83
Tints of #263D83
Tones of #263D83
Color harmonies
Complementary — #826B26:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 10.11:1 AAA |
|---|---|
| Against black text | 2.08:1 Fails |
Best text color on #263D83: #FFFFFF.
Semi-transparent (opacity) text on #263D83
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 #263D83: ·
How #263D83 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 #263D83 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 #263D83?
#263D83 is Blue, a blue color (RGB 38, 61, 131). Its closest standard named color is DarkSlateBlue.
What is the RGB and HSL of #263D83?
#263D83 is RGB 38, 61, 131 — HSL 225°, 55%, 33% — CMYK 71%, 53%, 0%, 49%.
What colors go with #263D83?
Its complement is #826B26; analogous partners are #266B82 and #3D2682. It also appears in 6+ palettes in our collection.
Can I use #263D83 for text?
White text on #263D83 has a contrast ratio of 10.11:1 (passes WCAG AA); black text gives 2.08:1.