HSL to HEX: #042F2E

Result

Values are shown at full precision, so converting back gives exactly #042f2e. 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. 1. input

   H = 178.60°, S = 84.31%, L = 10.00%

2. 2. C

   C = (1 − |2L − 1|) × S = 0.16862

3. 3. X

   X = C × (1 − |(H / 60°) mod 2 − 1|) = 0.16469   (H / 60° = 2.9767, sector 2)

4. 4. m

   m = L − C / 2 = 0.01569

5. 5. (R′, G′, B′) + m

   (R′, G′, B′) = (0.00000, 0.16862, 0.16469)
   R = round((0.00000 + 0.01569) × 255) = 4
   G = round((0.16862 + 0.01569) × 255) = 47
   B = round((0.16469 + 0.01569) × 255) = 46

6. 6. RGB → HEX

   #042F2E

All formats

HEX

#042f2e

RGB

rgb(4 47 46)

RGB (legacy)

rgb(4, 47, 46)

HSL

hsl(178.60 84.31% 10.00%) → hsl(179 84% 10%)

HWB

hwb(179 2% 82%)

OKLCH

oklch(0.277 0.045 192.5) · oklch(27.7% 0.045 192.5)

OKLab

oklab(0.277 -0.044 -0.010)

Lab (D50)

lab(16.65 -14.87 -3.71)

LCH (D50)

lch(16.65 15.32 194.01)

Display P3

color(display-p3 0.0706 0.1811 0.1791)

Linear sRGB

color(srgb-linear 0.0012 0.0284 0.0273)

Gamut: sRGB and Display P3

#042F2E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.048 and Display P3 reaches 0.064; this color uses 94% of the sRGB chroma available.

CSS snippets

.element {
  color: #042f2e;
  color: rgb(4 47 46);
  color: hsl(179 84% 10%);
  color: oklch(0.277 0.045 192.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.277 0.045 192.5);
}
/* arbitrary values */
class="text-[#042f2e] bg-[oklch(0.277_0.045_192.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.0706 0.1811 0.1791); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #042f2e calc(l - 0.1) c h); }

Nearby colors

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

• teal-950#022F2E
• v3 emerald-950#022C22
• emerald-950#002C22
• mist-800#22292B
• v3 cyan-950#083344
• v3 gray-800#1F2937
• v3 green-950#052E16
• cyan-950#053345

Lighter and darker, same hue and chroma

• #173F3D · oklch(0.337 0.045 192.5) · ΔL +0.06
• #00201F · oklch(0.217 0.045 192.5) · ΔL −0.06

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