OKLCH to HEX: #FACC15

Result

Values are shown at full precision, so converting back gives exactly #facc15. 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. input

   oklch(0.86056 0.17311 91.936)

2. 2. OKLCH → Oklab

   a = C·cos H = -0.00585
   b = C·sin H = 0.17301

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.895579
   m′ = L − 0.1056·a − 0.0639·b = 0.850130
   s′ = L − 0.0895·a − 1.2915·b = 0.637642

4. 4. cube

   l = 0.895579³ = 0.718309
   m = 0.850130³ = 0.614407
   s = 0.637642³ = 0.259257

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.955960
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.603832
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.007512

6. 6. linear → sRGB, × 255

   R = 0.98039 × 255 = 250.00 → 250
   G = 0.80000 × 255 = 204.00 → 204
   B = 0.08245 × 255 = 21.03 → 21

7. 7. RGB → HEX

   #FACC15

All formats

HEX

#facc15

RGB

rgb(250 204 21)

RGB (legacy)

rgb(250, 204, 21)

HSL

hsl(47.95 95.82% 53.14%) → hsl(48 96% 53%)

HWB

hwb(48 8% 2%)

OKLCH

oklch(0.861 0.173 91.9) · oklch(86.1% 0.173 91.9)

OKLab

oklab(0.861 -0.006 0.173)

Lab (D50)

lab(84.28 6.28 82.06)

LCH (D50)

lch(84.28 82.30 85.63)

Display P3

color(display-p3 0.9516 0.8069 0.2868)

Linear sRGB

color(srgb-linear 0.9560 0.6038 0.0075)

Gamut: sRGB and Display P3

#FACC15 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.176 and Display P3 reaches 0.203; this color uses 98% of the sRGB chroma available.

CSS snippets

.element {
  color: #facc15;
  color: rgb(250 204 21);
  color: hsl(48 96% 53%);
  color: oklch(0.861 0.173 91.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.861 0.173 91.9);
}
/* arbitrary values */
class="text-[#facc15] bg-[oklch(0.861_0.173_91.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9516 0.8069 0.2868); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #facc15 calc(l - 0.1) c h); }

Nearby colors

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

• yellow-400#FDC700
• amber-300#FFD230
• v3 amber-300#FCD34D
• gold#FFD700
• v3 amber-400#FBBF24
• amber-400#FFB900
• yellow-300#FFDF20
• v3 yellow-300#FDE047

Lighter and darker, same hue and chroma

• #FFE03C · oklch(0.921 0.173 91.9) · ΔL +0.06
• #E6B800 · oklch(0.801 0.173 91.9) · ΔL −0.06

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