RGB to HEX: #FF4500

Result

Values are shown at full precision, so converting back gives exactly #ff4500. 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. 1. base 10 → base 16

   R = 255 = 15×16 + 15 → FF
   G = 69 = 4×16 + 5 → 45
   B = 0 = 0×16 + 0 → 00

2. 2. pairs → HEX

   FF 45 00 → #FF4500

All formats

HEX

#ff4500

RGB

rgb(255 69 0)

RGB (legacy)

rgb(255, 69, 0)

HSL

hsl(16.24 100.00% 50.00%) → hsl(16 100% 50%)

HWB

hwb(16 0% 0%)

OKLCH

oklch(0.660 0.229 35.4) · oklch(66.0% 0.229 35.4)

OKLab

oklab(0.660 0.187 0.133)

Lab (D50)

lab(58.52 69.17 70.90)

LCH (D50)

lch(58.52 99.05 45.71)

Display P3

color(display-p3 0.9227 0.3331 0.1576)

Linear sRGB

color(srgb-linear 1.0000 0.0595 0.0000)

Gamut: sRGB and Display P3

#FF4500 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.229 and Display P3 reaches 0.258; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff4500;
  color: rgb(255 69 0);
  color: hsl(16 100% 50%);
  color: oklch(0.660 0.229 35.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.660 0.229 35.4);
}
/* arbitrary values */
class="text-[#ff4500] bg-[oklch(0.660_0.229_35.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9227 0.3331 0.1576); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff4500 calc(l - 0.1) c h); }

Nearby colors

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

• orange-600#F54900
• v3 orange-600#EA580C
• red-500#FB2C36
• v3 red-500#EF4444
• red#FF0000
• tomato#FF6347
• orange-500#FF6900
• red-400#FF6467

Lighter and darker, same hue and chroma

• #FF5C28 · oklch(0.720 0.229 35.4) · ΔL +0.06
• #E92B00 · oklch(0.600 0.229 35.4) · ΔL −0.06

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