HSL to HEX: #40E0D0

Also known as: CSS turquoise

hsl(174.00 72.07% 56.47%) → #40E0D0

Values are shown at full precision, so converting back gives exactly #40e0d0. 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
```
H = 174.00°, S = 72.07%, L = 56.47%
```
2. C
```
C = (1 − |2L − 1|) × S = 0.62744
```

3. X

X = C × (1 − |(H / 60°) mod 2 − 1|) = 0.56470   (H / 60° = 2.9000, sector 2)

4. m
```
m = L − C / 2 = 0.25098
```

5. (R′, G′, B′) + m

(R′, G′, B′) = (0.00000, 0.62744, 0.56470)
R = round((0.00000 + 0.25098) × 255) = 64
G = round((0.62744 + 0.25098) × 255) = 224
B = round((0.56470 + 0.25098) × 255) = 208

6. RGB → HEX
```
#40E0D0
```

All formats

HEX: #40e0d0
RGB: rgb(64 224 208)
RGB (legacy): rgb(64, 224, 208)
HSL: hsl(174.00 72.07% 56.47%) → hsl(174 72% 56%)
HWB: hwb(174 25% 12%)
OKLCH: oklch(0.822 0.131 185.1) · oklch(82.2% 0.131 185.1)
OKLab: oklab(0.822 -0.130 -0.012)
Lab (D50): lab(80.96 -45.14 -4.68)
LCH (D50): lch(80.96 45.38 185.92)
Display P3: color(display-p3 0.4547 0.8663 0.8148)
Linear sRGB: color(srgb-linear 0.0513 0.7454 0.6308)

Gamut: sRGB and Display P3

#40E0D0 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.145 and Display P3 reaches 0.196; this color uses 90% of the sRGB chroma available.

CSS snippets

.element {
  color: #40e0d0;
  color: rgb(64 224 208);
  color: hsl(174 72% 56%);
  color: oklch(0.822 0.131 185.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.822 0.131 185.1);
}
/* arbitrary values */
class="text-[#40e0d0] bg-[oklch(0.822_0.131_185.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4547 0.8663 0.8148); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #40e0d0 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

#5BF4E4 · oklch(0.882 0.131 185.1) · ΔL +0.06
#1BCCBD · oklch(0.762 0.131 185.1) · 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?