HEX to OKLCH: #FEE685

Also known as: Tailwind amber-200

#FEE685 → oklch(0.924 0.120 95.8)

Values are shown at full precision, so converting back gives exactly #fee685. 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: 254/255 = 0.99608 → 0.991102  (((x + 0.055) / 1.055)^2.4)
G: 230/255 = 0.90196 → 0.791298  (((x + 0.055) / 1.055)^2.4)
B: 133/255 = 0.52157 → 0.234551  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.845019
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.773844
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.458202

3. cube root

l′ = ∛0.845019 = 0.945414
m′ = ∛0.773844 = 0.918088
s′ = ∛0.458202 = 0.770937

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.92444
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.01225
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.11971

5. Oklab → OKLCH

C = √(a² + b²) = 0.12033
H = atan2(b, a) = 95.845°
L = 0.92444

6. OKLCH

oklch(0.92444 0.12033 95.845)
rounded: oklch(0.924 0.120 95.8)

All formats

HEX: #fee685
RGB: rgb(254 230 133)
RGB (legacy): rgb(254, 230, 133)
HSL: hsl(48.10 98.37% 75.88%) → hsl(48 98% 76%)
HWB: hwb(48 52% 0%)
OKLCH: oklch(0.924 0.120 95.8) · oklch(92.4% 0.120 95.8)
OKLab: oklab(0.924 -0.012 0.120)
Lab (D50): lab(91.77 -0.57 50.05)
LCH (D50): lch(91.77 50.05 90.65)
Display P3: color(display-p3 0.9802 0.9053 0.5729)
Linear sRGB: color(srgb-linear 0.9911 0.7913 0.2346)

Gamut: sRGB and Display P3

#FEE685 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.125 and Display P3 reaches 0.150; this color uses 96% of the sRGB chroma available.

CSS snippets

.element {
  color: #fee685;
  color: rgb(254 230 133);
  color: hsl(48 98% 76%);
  color: oklch(0.924 0.120 95.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.924 0.120 95.8);
}
/* arbitrary values */
class="text-[#fee685] bg-[oklch(0.924_0.120_95.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9802 0.9053 0.5729); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fee685 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

#FFFA99 · oklch(0.984 0.120 95.8) · ΔL +0.06
#EAD271 · oklch(0.864 0.120 95.8) · ΔL −0.06

Open in the studio

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