#2563EB — Tints, Shades & Color Values
#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.
Color Values
| Hex | #2563EB |
|---|---|
| RGB | rgb(37, 99, 235) |
| HSL | hsl(221, 83%, 53%) |
| HSV / HSB | 221°, 84%, 92% |
| Nearest named | royalblue (#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.
-
10% tint
#3b73ed -
20% tint
#5182ef -
30% tint
#6692f1 -
40% tint
#7ca1f3 -
50% tint
#92b1f5 -
60% tint
#a8c1f7 -
70% tint
#bed0f9 -
80% tint
#d3e0fb -
90% tint
#e9effd
Shades of #2563EB (Mixed with Black)
Each step blends the base color toward black using new = old × (1 − factor).
-
10% shade
#2159d4 -
20% shade
#1e4fbc -
30% shade
#1a45a5 -
40% shade
#163b8d -
50% shade
#133276 -
60% shade
#0f285e -
70% shade
#0b1e47 -
80% shade
#07142f -
90% shade
#040a17
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
-
What color is #2563EB?
#2563EB is a medium, vivid blue —
rgb(37, 99, 235). Its nearest CSS named color isroyalblue. In Tailwind CSS it isblue-600. -
How do I make tints and shades of #2563EB?
Mix #2563EB with white for tints and with black for shades. A 20% tint of #2563EB is
#5182efand a 20% shade is#1e4fbc— the full 10%–90% ramps are precomputed on this page, or open #2563EB in the generator for finer steps. -
What text color is readable on #2563EB?
White text gives the strongest contrast on a #2563EB background at 5.17:1, which passes WCAG AA for normal text but not AAA.
-
What is the Tailwind CSS class for #2563EB?
blue-600— use it asbg-blue-600,text-blue-600, orborder-blue-600. The full blue 50–950 ramp is linked above.
Browse more colors in the color library, or start from any hex code on the HexTints homepage.
#2563EB? Put it on a free link-in-bio page →