HEX to RGB: #334155

Also known as: Tailwind v3 slate-700

#334155 → rgb(51 65 85)

Values are shown at full precision, so converting back gives exactly #334155. The rounded form is what you normally paste into CSS.

Step-by-step math

Every number below is computed from the input, nothing is looked up.

1. HEX → pairs
```
#334155 → 33 | 41 | 55
```

2. base 16 → base 10

R = 33₁₆ = 3×16 + 3 = 51
G = 41₁₆ = 4×16 + 1 = 65
B = 55₁₆ = 5×16 + 5 = 85

3. RGB
```
rgb(51 65 85)
```

All formats

HEX: #334155
RGB: rgb(51 65 85)
RGB (legacy): rgb(51, 65, 85)
HSL: hsl(215.29 25.00% 26.67%) → hsl(215 25% 27%)
HWB: hwb(215 20% 67%)
OKLCH: oklch(0.372 0.039 257.3) · oklch(37.2% 0.039 257.3)
OKLab: oklab(0.372 -0.009 -0.038)
Lab (D50): lab(26.95 -1.48 -14.02)
LCH (D50): lch(26.95 14.10 263.99)
Display P3: color(display-p3 0.2109 0.2533 0.3266)
Linear sRGB: color(srgb-linear 0.0331 0.0529 0.0908)

Gamut: sRGB and Display P3

#334155 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.133 and Display P3 reaches 0.170; this color uses 29% of the sRGB chroma available.

CSS snippets

.element {
  color: #334155;
  color: rgb(51 65 85);
  color: hsl(215 25% 27%);
  color: oklch(0.372 0.039 257.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.372 0.039 257.3);
}
/* arbitrary values */
class="text-[#334155] bg-[oklch(0.372_0.039_257.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2109 0.2533 0.3266); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #334155 calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

Lighter and darker, same hue and chroma

#435166 · oklch(0.432 0.039 257.3) · ΔL +0.06
#243145 · oklch(0.312 0.039 257.3) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?