#64748B — Tints, Shades & Color Values
#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.
Color Values
| Hex | #64748B |
|---|---|
| RGB | rgb(100, 116, 139) |
| HSL | hsl(215, 16%, 47%) |
| HSV / HSB | 215°, 28%, 55% |
| Nearest named | slategray (#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.
-
10% tint
#748297 -
20% tint
#8390a2 -
30% tint
#939eae -
40% tint
#a2acb9 -
50% tint
#b2bac5 -
60% tint
#c1c7d1 -
70% tint
#d1d5dc -
80% tint
#e0e3e8 -
90% tint
#f0f1f3
Shades of #64748B (Mixed with Black)
Each step blends the base color toward black using new = old × (1 − factor).
-
10% shade
#5a687d -
20% shade
#505d6f -
30% shade
#465161 -
40% shade
#3c4653 -
50% shade
#323a46 -
60% shade
#282e38 -
70% shade
#1e232a -
80% shade
#14171c -
90% shade
#0a0c0e
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
-
What color is #64748B?
#64748B is a medium, muted blue —
rgb(100, 116, 139). Its nearest CSS named color isslategray. In Tailwind CSS it isslate-500. -
How do I make tints and shades of #64748B?
Mix #64748B with white for tints and with black for shades. A 20% tint of #64748B is
#8390a2and a 20% shade is#505d6f— the full 10%–90% ramps are precomputed on this page, or open #64748B in the generator for finer steps. -
What text color is readable on #64748B?
White text gives the strongest contrast on a #64748B background at 4.76:1, which passes WCAG AA for normal text but not AAA.
-
What is the Tailwind CSS class for #64748B?
slate-500— use it asbg-slate-500,text-slate-500, orborder-slate-500. The full slate 50–950 ramp is linked above.
Browse more colors in the color library, or start from any hex code on the HexTints homepage.
#64748B? Put it on a free link-in-bio page →