OKLCH to HEX: #FDC700

Result

Values are shown at full precision, so converting back gives exactly #fdc700. 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(0.85351 0.17442 88.773)

2. 2. OKLCH → Oklab

   a = C·cos H = 0.00373
   b = C·sin H = 0.17438

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.892622
   m′ = L − 0.1056·a − 0.0639·b = 0.841981
   s′ = L − 0.0895·a − 1.2915·b = 0.627967

4. 4. cube

   l = 0.892622³ = 0.711218
   m = 0.841981³ = 0.596907
   s = 0.627967³ = 0.247634

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.982254
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.571124
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.000003

6. 6. linear → sRGB, × 255

   R = 0.99216 × 255 = 253.00 → 253
   G = 0.78039 × 255 = 199.00 → 199
   B = 0.00004 × 255 = 0.01 → 0

7. 7. RGB → HEX

   #FDC700

All formats

HEX

#fdc700

RGB

rgb(253 199 0)

RGB (legacy)

rgb(253, 199, 0)

HSL

hsl(47.19 100.00% 49.61%) → hsl(47 100% 50%)

HWB

hwb(47 0% 1%)

OKLCH

oklch(0.854 0.174 88.8) · oklch(85.4% 0.174 88.8)

OKLab

oklab(0.854 0.004 0.174)

Lab (D50)

lab(83.34 9.85 83.76)

LCH (D50)

lch(83.34 84.33 83.30)

Display P3

color(display-p3 0.9590 0.7887 0.2674)

Linear sRGB

color(srgb-linear 0.9823 0.5711 0.0000)

Gamut: sRGB and Display P3

#FDC700 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.174 and Display P3 reaches 0.201; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #fdc700;
  color: rgb(253 199 0);
  color: hsl(47 100% 50%);
  color: oklch(0.854 0.174 88.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.854 0.174 88.8);
}
/* arbitrary values */
class="text-[#fdc700] bg-[oklch(0.854_0.174_88.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9590 0.7887 0.2674); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fdc700 calc(l - 0.1) c h); }

Nearby colors

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

• v3 yellow-400#FACC15
• v3 amber-400#FBBF24
• amber-300#FFD230
• amber-400#FFB900
• v3 amber-300#FCD34D
• gold#FFD700
• yellow-300#FFDF20
• v3 yellow-300#FDE047

Lighter and darker, same hue and chroma

• #FFDB35 · oklch(0.914 0.174 88.8) · ΔL +0.06
• #E9B300 · oklch(0.794 0.174 88.8) · ΔL −0.06

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