OKLCH to HEX: #9D174D

Result

Values are shown at full precision, so converting back gives exactly #9d174d. 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

   oklch(0.45870 0.16968 3.815)

2. 2. OKLCH → Oklab

   a = C·cos H = 0.16930
   b = C·sin H = 0.01129

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.528238
   m′ = L − 0.1056·a − 0.0639·b = 0.440107
   s′ = L − 0.0895·a − 1.2915·b = 0.428970

4. 4. cube

   l = 0.528238³ = 0.147397
   m = 0.440107³ = 0.085246
   s = 0.428970³ = 0.078937

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.337162
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.008565
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.074211

6. 6. linear → sRGB, × 255

   R = 0.61568 × 255 = 157.00 → 157
   G = 0.09018 × 255 = 23.00 → 23
   B = 0.30196 × 255 = 77.00 → 77

7. 7. RGB → HEX

   #9D174D

All formats

HEX

#9d174d

RGB

rgb(157 23 77)

RGB (legacy)

rgb(157, 23, 77)

HSL

hsl(335.82 74.44% 35.29%) → hsl(336 74% 35%)

HWB

hwb(336 9% 38%)

OKLCH

oklch(0.459 0.170 3.8) · oklch(45.9% 0.170 3.8)

OKLab

oklab(0.459 0.169 0.011)

Lab (D50)

lab(35.13 54.88 5.37)

LCH (D50)

lch(35.13 55.15 5.59)

Display P3

color(display-p3 0.5646 0.1494 0.3014)

Linear sRGB

color(srgb-linear 0.3372 0.0086 0.0742)

Gamut: sRGB and Display P3

#9D174D is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.185 and Display P3 reaches 0.208; this color uses 92% of the sRGB chroma available.

CSS snippets

.element {
  color: #9d174d;
  color: rgb(157 23 77);
  color: hsl(336 74% 35%);
  color: oklch(0.459 0.170 3.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.459 0.170 3.8);
}
/* arbitrary values */
class="text-[#9d174d] bg-[oklch(0.459_0.170_3.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5646 0.1494 0.3014); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #9d174d calc(l - 0.1) c h); }

Nearby colors

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

• pink-800#A3004C
• v3 rose-800#9F1239
• rose-800#A50036
• rose-900#8B0836
• pink-900#861043
• v3 rose-900#881337
• v3 pink-900#831843
• brown#A52A2A

Lighter and darker, same hue and chroma

• #B22F5E · oklch(0.519 0.170 3.8) · ΔL +0.06
• #89003D · oklch(0.399 0.170 3.8) · ΔL −0.06

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