HSL 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

   H = 51.39°, S = 100.00%, L = 56.27%

2. 2. C

   C = (1 − |2L − 1|) × S = 0.87460

3. 3. X

   X = C × (1 − |(H / 60°) mod 2 − 1|) = 0.74909   (H / 60° = 0.8565, sector 0)

4. 4. m

   m = L − C / 2 = 0.12540

5. 5. (R′, G′, B′) + m

   (R′, G′, B′) = (0.87460, 0.74909, 0.00000)
   R = round((0.87460 + 0.12540) × 255) = 255
   G = round((0.74909 + 0.12540) × 255) = 223
   B = round((0.00000 + 0.12540) × 255) = 32

6. 6. 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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