OKLCH to HEX: #FEF08A

Also known as: Tailwind v3 yellow-200

oklch(0.94510 0.12430 101.540) → #FEF08A

Values are shown at full precision, so converting back gives exactly #fef08a. 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. input
```
oklch(0.94510 0.12430 101.540)
```

2. OKLCH → Oklab

a = C·cos H = -0.02487
b = C·sin H = 0.12179

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.961527
m′ = L − 0.1056·a − 0.0639·b = 0.939948
s′ = L − 0.0895·a − 1.2915·b = 0.790039

4. cube

l = 0.961527³ = 0.888964
m = 0.939948³ = 0.830447
s = 0.790039³ = 0.493111

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.991090
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.871362
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.254162

6. linear → sRGB, × 255

R = 0.99607 × 255 = 254.00 → 254
G = 0.94117 × 255 = 240.00 → 240
B = 0.54119 × 255 = 138.00 → 138

7. RGB → HEX
```
#FEF08A
```

All formats

HEX: #fef08a
RGB: rgb(254 240 138)
RGB (legacy): rgb(254, 240, 138)
HSL: hsl(52.76 98.31% 76.86%) → hsl(53 98% 77%)
HWB: hwb(53 54% 0%)
OKLCH: oklch(0.945 0.124 101.5) · oklch(94.5% 0.124 101.5)
OKLab: oklab(0.945 -0.025 0.122)
Lab (D50): lab(94.34 -4.96 50.75)
LCH (D50): lch(94.34 51.00 95.58)
Display P3: color(display-p3 0.9866 0.9431 0.5939)
Linear sRGB: color(srgb-linear 0.9911 0.8714 0.2542)

Gamut: sRGB and Display P3

#FEF08A is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.131 and Display P3 reaches 0.152; this color uses 95% of the sRGB chroma available.

CSS snippets

.element {
  color: #fef08a;
  color: rgb(254 240 138);
  color: hsl(53 98% 77%);
  color: oklch(0.945 0.124 101.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.945 0.124 101.5);
}
/* arbitrary values */
class="text-[#fef08a] bg-[oklch(0.945_0.124_101.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9866 0.9431 0.5939); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fef08a 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

#FFFF9C · oklch(1.000 0.124 101.5) · ΔL +0.06
#EADC76 · oklch(0.885 0.124 101.5) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?