HEX to OKLCH: #F0B100

Also known as: Tailwind yellow-500

#F0B100 → oklch(0.798 0.164 82.7)

Values are shown at full precision, so converting back gives exactly #f0b100. 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. sRGB → linear

R: 240/255 = 0.94118 → 0.871367  (((x + 0.055) / 1.055)^2.4)
G: 177/255 = 0.69412 → 0.439657  (((x + 0.055) / 1.055)^2.4)
B: 0/255 = 0.00000 → 0.000000  (÷ 12.92)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.594999
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.483920
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.200804

3. cube root

l′ = ∛0.594999 = 0.841083
m′ = ∛0.483920 = 0.785099
s′ = ∛0.200804 = 0.585586

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.79769
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.02084
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.16279

5. Oklab → OKLCH

C = √(a² + b²) = 0.16412
H = atan2(b, a) = 82.706°
L = 0.79769

6. OKLCH

oklch(0.79769 0.16412 82.706)
rounded: oklch(0.798 0.164 82.7)

All formats

HEX: #f0b100
RGB: rgb(240 177 0)
RGB (legacy): rgb(240, 177, 0)
HSL: hsl(44.25 100.00% 47.06%) → hsl(44 100% 47%)
HWB: hwb(44 0% 6%)
OKLCH: oklch(0.798 0.164 82.7) · oklch(79.8% 0.164 82.7)
OKLab: oklab(0.798 0.021 0.163)
Lab (D50): lab(76.62 15.25 78.69)
LCH (D50): lch(76.62 80.16 79.03)
Display P3: color(display-p3 0.9037 0.7042 0.2393)
Linear sRGB: color(srgb-linear 0.8714 0.4397 0.0000)

Gamut: sRGB and Display P3

#F0B100 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.164 and Display P3 reaches 0.189; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #f0b100;
  color: rgb(240 177 0);
  color: hsl(44 100% 47%);
  color: oklch(0.798 0.164 82.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.798 0.164 82.7);
}
/* arbitrary values */
class="text-[#f0b100] bg-[oklch(0.798_0.164_82.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9037 0.7042 0.2393); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #f0b100 calc(l - 0.1) c h); }

Nearby colors

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

Lighter and darker, same hue and chroma

#FFC532 · oklch(0.858 0.164 82.7) · ΔL +0.06
#DC9E00 · oklch(0.738 0.164 82.7) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?