RGB to HEX: #B45309

Result

Values are shown at full precision, so converting back gives exactly #b45309. 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 = 180 = 11×16 + 4 → B4
   G = 83 = 5×16 + 3 → 53
   B = 9 = 0×16 + 9 → 09

2. 2. pairs → HEX

   B4 53 09 → #B45309

All formats

HEX

#b45309

RGB

rgb(180 83 9)

RGB (legacy)

rgb(180, 83, 9)

HSL

hsl(25.96 90.48% 37.06%) → hsl(26 90% 37%)

HWB

hwb(26 4% 29%)

OKLCH

oklch(0.555 0.146 49.0) · oklch(55.5% 0.146 49.0)

OKLab

oklab(0.555 0.095 0.110)

Lab (D50)

lab(47.46 37.77 54.90)

LCH (D50)

lch(47.46 66.64 55.47)

Display P3

color(display-p3 0.6582 0.3471 0.1360)

Linear sRGB

color(srgb-linear 0.4564 0.0865 0.0027)

Gamut: sRGB and Display P3

#B45309 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.149 and Display P3 reaches 0.169; this color uses 98% of the sRGB chroma available.

CSS snippets

.element {
  color: #b45309;
  color: rgb(180 83 9);
  color: hsl(26 90% 37%);
  color: oklch(0.555 0.146 49.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.555 0.146 49.0);
}
/* arbitrary values */
class="text-[#b45309] bg-[oklch(0.555_0.146_49.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.6582 0.3471 0.1360); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #b45309 calc(l - 0.1) c h); }

Nearby colors

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

• amber-700#BB4D00
• yellow-700#A65F00
• v3 orange-700#C2410C
• sienna#A0522D
• v3 yellow-700#A16207
• orange-700#CA3500
• chocolate#D2691E
• amber-800#973C00

Lighter and darker, same hue and chroma

• #C86526 · oklch(0.615 0.146 49.0) · ΔL +0.06
• #A04100 · oklch(0.495 0.146 49.0) · ΔL −0.06

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