RGB to HEX: #FF6347

Also known as: CSS tomato

rgb(255 99 71) → #FF6347

Values are shown at full precision, so converting back gives exactly #ff6347. 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. base 10 → base 16

R = 255 = 15×16 + 15 → FF
G = 99 = 6×16 + 3 → 63
B = 71 = 4×16 + 7 → 47

2. pairs → HEX
```
FF 63 47 → #FF6347
```

All formats

HEX: #ff6347
RGB: rgb(255 99 71)
RGB (legacy): rgb(255, 99, 71)
HSL: hsl(9.13 100.00% 63.92%) → hsl(9 100% 64%)
HWB: hwb(9 28% 0%)
OKLCH: oklch(0.696 0.196 32.3) · oklch(69.6% 0.196 32.3)
OKLab: oklab(0.696 0.165 0.105)
Lab (D50): lab(62.99 59.36 47.88)
LCH (D50): lch(62.99 76.27 38.89)
Display P3: color(display-p3 0.9283 0.4286 0.3199)
Linear sRGB: color(srgb-linear 1.0000 0.1248 0.0630)

Gamut: sRGB and Display P3

#FF6347 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.196 and Display P3 reaches 0.248; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff6347;
  color: rgb(255 99 71);
  color: hsl(9 100% 64%);
  color: oklch(0.696 0.196 32.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.696 0.196 32.3);
}
/* arbitrary values */
class="text-[#ff6347] bg-[oklch(0.696_0.196_32.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9283 0.4286 0.3199); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff6347 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

#FF775A · oklch(0.756 0.196 32.3) · ΔL +0.06
#E94F33 · oklch(0.636 0.196 32.3) · 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?