OKLCH to HEX: #3B82F6

Also known as: Tailwind v3 blue-500

oklch(0.62308 0.18801 259.815) → #3B82F6

Values are shown at full precision, so converting back gives exactly #3b82f6. 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(0.62308 0.18801 259.815)
```

2. OKLCH → Oklab

a = C·cos H = -0.03325
b = C·sin H = -0.18505

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.569970
m′ = L − 0.1056·a − 0.0639·b = 0.638405
s′ = L − 0.0895·a − 1.2915·b = 0.865041

4. cube

l = 0.569970³ = 0.185164
m = 0.638405³ = 0.260190
s = 0.865041³ = 0.647306

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.043740
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.223225
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.921551

6. linear → sRGB, × 255

R = 0.23139 × 255 = 59.00 → 59
G = 0.50980 × 255 = 130.00 → 130
B = 0.96469 × 255 = 246.00 → 246

7. RGB → HEX
```
#3B82F6
```

All formats

HEX: #3b82f6
RGB: rgb(59 130 246)
RGB (legacy): rgb(59, 130, 246)
HSL: hsl(217.22 91.22% 59.80%) → hsl(217 91% 60%)
HWB: hwb(217 23% 4%)
OKLCH: oklch(0.623 0.188 259.8) · oklch(62.3% 0.188 259.8)
OKLab: oklab(0.623 -0.033 -0.185)
Lab (D50): lab(54.62 8.76 -65.79)
LCH (D50): lch(54.62 66.37 277.59)
Display P3: color(display-p3 0.3047 0.5035 0.9338)
Linear sRGB: color(srgb-linear 0.0437 0.2232 0.9216)

Gamut: sRGB and Display P3

#3B82F6 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.204 and Display P3 reaches 0.219; this color uses 92% of the sRGB chroma available.

CSS snippets

.element {
  color: #3b82f6;
  color: rgb(59 130 246);
  color: hsl(217 91% 60%);
  color: oklch(0.623 0.188 259.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.623 0.188 259.8);
}
/* arbitrary values */
class="text-[#3b82f6] bg-[oklch(0.623_0.188_259.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3047 0.5035 0.9338); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #3b82f6 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

#4E95FF · oklch(0.683 0.188 259.8) · ΔL +0.06
#286FE1 · oklch(0.563 0.188 259.8) · 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?