#64748B — Tints, Shades & Color Values

#64748B

#64748B is a medium, muted blue. In Tailwind CSS this exact color is the utility class slate-500 (e.g. bg-slate-500, text-slate-500). Its nearest CSS named color is slategray (#708090). For readable text on a #64748B background, white text gives the strongest contrast (4.76:1). #64748B 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 #64748B in the tint & shade generator to explore the full lightness, hue, and chroma scales and copy any step.

Color Values

Hex#64748B
RGBrgb(100, 116, 139)
HSLhsl(215, 16%, 47%)
HSV / HSB215°, 28%, 55%
Nearest namedslategray (#708090)

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

#64748B in Tailwind CSS (slate-500)

#64748B ships with Tailwind CSS as slate-500 — use it as bg-slate-500, text-slate-500, or border-slate-500. It sits at step 500 of the slate 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 #64748B (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 #64748B (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 #64748B 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 4.76:1 — AA normal: Pass · AA large: Pass · AAA: Fail
Black text 4.41:1 — 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 #64748B 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: #6B7280 (gray-500), #1D4ED8 (blue-700), #2980B9, #0000FF, #708090, #4338CA (indigo-700).

Frequently Asked Questions

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

Building a brand around #64748B? Put it on a free link-in-bio page →