HEX to HSL: #1E1A4D

Also known as: Tailwind indigo-950

#1E1A4D → hsl(245 50% 20%)

Values are shown at full precision, so converting back gives exactly #1e1a4d. 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. RGB ÷ 255
```
R = 0.1176
G = 0.1020
B = 0.3020
```

2. max, min, Δ

max = 0.3020
min = 0.1020
Δ = max − min = 0.2000

3. L
```
L = (max + min) / 2 = 0.2020 = 20.20%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.4951 = 49.51%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.1176 − 0.1020) / 0.2000 + 4) = 244.71°

6. HSL
```
hsl(244.71 49.51% 20.20%)
```

All formats

HEX: #1e1a4d
RGB: rgb(30 26 77)
RGB (legacy): rgb(30, 26, 77)
HSL: hsl(244.71 49.51% 20.20%) → hsl(245 50% 20%)
HWB: hwb(245 10% 70%)
OKLCH: oklch(0.257 0.091 281.4) · oklch(25.7% 0.091 281.4)
OKLab: oklab(0.257 0.018 -0.089)
Lab (D50): lab(12.48 15.22 -31.59)
LCH (D50): lch(12.48 35.07 295.73)
Display P3: color(display-p3 0.1150 0.1025 0.2903)
Linear sRGB: color(srgb-linear 0.0130 0.0103 0.0742)

Gamut: sRGB and Display P3

#1E1A4D is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.154 and Display P3 reaches 0.156; this color uses 59% of the sRGB chroma available.

CSS snippets

.element {
  color: #1e1a4d;
  color: rgb(30 26 77);
  color: hsl(245 50% 20%);
  color: oklch(0.257 0.091 281.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.257 0.091 281.4);
}
/* arbitrary values */
class="text-[#1e1a4d] bg-[oklch(0.257_0.091_281.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1150 0.1025 0.2903); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #1e1a4d 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

#2C2A5E · oklch(0.317 0.091 281.4) · ΔL +0.06
#120A3C · oklch(0.197 0.091 281.4) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

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Guides: What is OKLCH?