OKLCH to HEX: #ECFDF5

Also known as: Tailwind emerald-50, Tailwind v3 emerald-50

oklch(0.97932 0.02068 166.113) → #ECFDF5

Values are shown at full precision, so converting back gives exactly #ecfdf5. 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(0.97932 0.02068 166.113)
```

2. OKLCH → Oklab

a = C·cos H = -0.02008
b = C·sin H = 0.00496

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.972434
m′ = L − 0.1056·a − 0.0639·b = 0.981122
s′ = L − 0.0895·a − 1.2915·b = 0.974706

4. cube

l = 0.972434³ = 0.919562
m = 0.981122³ = 0.944429
s = 0.974706³ = 0.926022

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.838800
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.982255
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.913101

6. linear → sRGB, × 255

R = 0.92549 × 255 = 236.00 → 236
G = 0.99216 × 255 = 253.00 → 253
B = 0.96079 × 255 = 245.00 → 245

7. RGB → HEX
```
#ECFDF5
```

All formats

HEX: #ecfdf5
RGB: rgb(236 253 245)
RGB (legacy): rgb(236, 253, 245)
HSL: hsl(151.76 80.95% 95.88%) → hsl(152 81% 96%)
HWB: hwb(152 93% 1%)
OKLCH: oklch(0.979 0.021 166.1) · oklch(97.9% 0.021 166.1)
OKLab: oklab(0.979 -0.020 0.005)
Lab (D50): lab(97.88 -6.84 1.83)
LCH (D50): lch(97.88 7.08 165.06)
Display P3: color(display-p3 0.9378 0.9900 0.9625)
Linear sRGB: color(srgb-linear 0.8388 0.9823 0.9131)

Gamut: sRGB and Display P3

#ECFDF5 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.029 and Display P3 reaches 0.033; this color uses 71% of the sRGB chroma available.

CSS snippets

.element {
  color: #ecfdf5;
  color: rgb(236 253 245);
  color: hsl(152 81% 96%);
  color: oklch(0.979 0.021 166.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.979 0.021 166.1);
}
/* arbitrary values */
class="text-[#ecfdf5] bg-[oklch(0.979_0.021_166.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9378 0.9900 0.9625); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ecfdf5 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

#F3FFFC · oklch(1.000 0.021 166.1) · ΔL +0.06
#D8E9E1 · oklch(0.919 0.021 166.1) · 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?