#2563EB — Tints, Shades & Color Values

#2563EB

#2563EB is a medium, vivid blue. In Tailwind CSS this exact color is the utility class blue-600 (e.g. bg-blue-600, text-blue-600). Its nearest CSS named color is royalblue (#4169e1). For readable text on a #2563EB background, white text gives the strongest contrast (5.17:1). #2563EB sits in the middle of the lightness range, so it can serve as a primary brand or accent color — use its tints for backgrounds and its shades for text and pressed states.

Want to fine-tune this color interactively? Open #2563EB in the tint & shade generator to explore the full lightness, hue, and chroma scales and copy any step.

Color Values

Hex#2563EB
RGBrgb(37, 99, 235)
HSLhsl(221, 83%, 53%)
HSV / HSB221°, 84%, 92%
Nearest namedroyalblue (#4169e1)

Need these in another format? Use our hex to RGB converter for quick two-way conversion.

#2563EB in Tailwind CSS (blue-600)

#2563EB ships with Tailwind CSS as blue-600 — use it as bg-blue-600, text-blue-600, or border-blue-600. It sits at step 600 of the blue ramp; every other step links to its own page:

Browse the full Tailwind palette in the color library, or generate in-between steps with the tint & shade generator.

Tints of #2563EB (Mixed with White)

Each step blends the base color toward white using new = old + (255 − old) × factor. Click a swatch to open it in the generator.

Shades of #2563EB (Mixed with Black)

Each step blends the base color toward black using new = old × (1 − factor).

WCAG Contrast & Accessibility

Contrast ratios for text placed on a #2563EB background. WCAG requires 4.5:1 for normal text (AA), 3:1 for large text (AA), and 7:1 for normal text (AAA).

Text color White text 5.17:1 — AA normal: Pass · AA large: Pass · AAA: Fail
Black text 4.06:1 — AA normal: Fail · AA large: Pass · AAA: Fail

If neither pure white nor pure black reaches the level you need, pick a lighter tint of #2563EB from the ramps above as the background instead — small lightness moves change contrast quickly. Test any other pair with the free contrast checker.

More blue colors in the library: #3498DB, #1E90FF, #4338CA (indigo-700), #708090, #0000FF, #6A5ACD.

Frequently Asked Questions

Browse more colors in the color library, or start from any hex code on the HexTints homepage.

Building a brand around #2563EB? Put it on a free link-in-bio page →