OKLCH to HEX: #2B7FFF

Also known as: Tailwind blue-500

oklch(0.61873 0.20673 259.232) → #2B7FFF

Values are shown at full precision, so converting back gives exactly #2b7fff. 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(0.61873 0.20673 259.232)
```

2. OKLCH → Oklab

a = C·cos H = -0.03862
b = C·sin H = -0.20309

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.559594
m′ = L − 0.1056·a − 0.0639·b = 0.635775
s′ = L − 0.0895·a − 1.2915·b = 0.884474

4. cube

l = 0.559594³ = 0.175235
m = 0.635775³ = 0.256987
s = 0.884474³ = 0.691919

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.024160
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.212234
B = −0.0042·l − 0.7034·m + 1.7076·s = 1.000026

6. linear → sRGB, × 255

R = 0.16864 × 255 = 43.00 → 43
G = 0.49804 × 255 = 127.00 → 127
B = 1.00000 × 255 = 255.00 → 255

7. RGB → HEX
```
#2B7FFF
```

All formats

HEX: #2b7fff
RGB: rgb(43 127 255)
RGB (legacy): rgb(43, 127, 255)
HSL: hsl(216.23 100.00% 58.43%) → hsl(216 100% 58%)
HWB: hwb(216 17% 0%)
OKLCH: oklch(0.619 0.207 259.2) · oklch(61.9% 0.207 259.2)
OKLab: oklab(0.619 -0.039 -0.203)
Lab (D50): lab(53.83 11.48 -72.05)
LCH (D50): lch(53.83 72.95 279.05)
Display P3: color(display-p3 0.2661 0.4912 0.9669)
Linear sRGB: color(srgb-linear 0.0242 0.2122 1.0000)

Gamut: sRGB and Display P3

#2B7FFF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.207 and Display P3 reaches 0.222; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #2b7fff;
  color: rgb(43 127 255);
  color: hsl(216 100% 58%);
  color: oklch(0.619 0.207 259.2);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.619 0.207 259.2);
}
/* arbitrary values */
class="text-[#2b7fff] bg-[oklch(0.619_0.207_259.2)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2661 0.4912 0.9669); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #2b7fff 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

#3F93FF · oklch(0.679 0.207 259.2) · ΔL +0.06
#136CEA · oklch(0.559 0.207 259.2) · 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?