OKLCH to HEX: #FFDF20

Result

Values are shown at full precision, so converting back gives exactly #ffdf20. 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(0.90324 0.18171 98.271)

2. 2. OKLCH → Oklab

   a = C·cos H = -0.02614
   b = C·sin H = 0.17982

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.931686
   m′ = L − 0.1056·a − 0.0639·b = 0.894517
   s′ = L − 0.0895·a − 1.2915·b = 0.673344

4. 4. cube

   l = 0.931686³ = 0.808738
   m = 0.894517³ = 0.715758
   s = 0.673344³ = 0.305289

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 1.000011
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.737918
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.014446

6. 6. linear → sRGB, × 255

   R = 1.00000 × 255 = 255.00 → 255
   G = 0.87451 × 255 = 223.00 → 223
   B = 0.12550 × 255 = 32.00 → 32

7. 7. RGB → HEX

   #FFDF20

All formats

HEX

#ffdf20

RGB

rgb(255 223 32)

RGB (legacy)

rgb(255, 223, 32)

HSL

hsl(51.39 100.00% 56.27%) → hsl(51 100% 56%)

HWB

hwb(51 13% 0%)

OKLCH

oklch(0.903 0.182 98.3) · oklch(90.3% 0.182 98.3)

OKLab

oklab(0.903 -0.026 0.180)

Lab (D50)

lab(89.50 -0.66 84.31)

LCH (D50)

lch(89.50 84.31 90.45)

Display P3

color(display-p3 0.9793 0.8791 0.3202)

Linear sRGB

color(srgb-linear 1.0000 0.7379 0.0144)

Gamut: sRGB and Display P3

#FFDF20 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.182 and Display P3 reaches 0.216; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ffdf20;
  color: rgb(255 223 32);
  color: hsl(51 100% 56%);
  color: oklch(0.903 0.182 98.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.903 0.182 98.3);
}
/* arbitrary values */
class="text-[#ffdf20] bg-[oklch(0.903_0.182_98.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9793 0.8791 0.3202); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ffdf20 calc(l - 0.1) c h); }

Nearby colors

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

• v3 yellow-300#FDE047
• gold#FFD700
• amber-300#FFD230
• v3 amber-300#FCD34D
• v3 yellow-400#FACC15
• yellow-400#FDC700
• amber-200#FEE685
• yellow-200#FFF085

Lighter and darker, same hue and chroma

• #FFF344 · oklch(0.963 0.182 98.3) · ΔL +0.06
• #EBCB00 · oklch(0.843 0.182 98.3) · ΔL −0.06

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