RGB to HEX: #FFA500

Also known as: CSS orange

rgb(255 165 0) → #FFA500

Values are shown at full precision, so converting back gives exactly #ffa500. 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 = 165 = 10×16 + 5 → A5
B = 0 = 0×16 + 0 → 00

2. pairs → HEX
```
FF A5 00 → #FFA500
```

All formats

HEX: #ffa500
RGB: rgb(255 165 0)
RGB (legacy): rgb(255, 165, 0)
HSL: hsl(38.82 100.00% 50.00%) → hsl(39 100% 50%)
HWB: hwb(39 0% 0%)
OKLCH: oklch(0.793 0.171 70.7) · oklch(79.3% 0.171 70.7)
OKLab: oklab(0.793 0.057 0.161)
Lab (D50): lab(75.59 27.52 79.12)
LCH (D50): lch(75.59 83.77 70.82)
Display P3: color(display-p3 0.9497 0.6629 0.2330)
Linear sRGB: color(srgb-linear 1.0000 0.3763 0.0000)

Gamut: sRGB and Display P3

#FFA500 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.171 and Display P3 reaches 0.196; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ffa500;
  color: rgb(255 165 0);
  color: hsl(39 100% 50%);
  color: oklch(0.793 0.171 70.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.793 0.171 70.7);
}
/* arbitrary values */
class="text-[#ffa500] bg-[oklch(0.793_0.171_70.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9497 0.6629 0.2330); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ffa500 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

#FFB831 · oklch(0.853 0.171 70.7) · ΔL +0.06
#EA9200 · oklch(0.733 0.171 70.7) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?