HSL to HEX: #615FFF

Also known as: Tailwind indigo-500

hsl(240.75 100.00% 68.63%) → #615FFF

Values are shown at full precision, so converting back gives exactly #615fff. 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
```
H = 240.75°, S = 100.00%, L = 68.63%
```
2. C
```
C = (1 − |2L − 1|) × S = 0.62740
```

3. X

X = C × (1 − |(H / 60°) mod 2 − 1|) = 0.00784   (H / 60° = 4.0125, sector 4)

4. m
```
m = L − C / 2 = 0.37260
```

5. (R′, G′, B′) + m

(R′, G′, B′) = (0.00784, 0.00000, 0.62740)
R = round((0.00784 + 0.37260) × 255) = 97
G = round((0.00000 + 0.37260) × 255) = 95
B = round((0.62740 + 0.37260) × 255) = 255

6. RGB → HEX
```
#615FFF
```

All formats

HEX: #615fff
RGB: rgb(97 95 255)
RGB (legacy): rgb(97, 95, 255)
HSL: hsl(240.75 100.00% 68.63%) → hsl(241 100% 69%)
HWB: hwb(241 37% 0%)
OKLCH: oklch(0.583 0.230 277.1) · oklch(58.3% 0.230 277.1)
OKLab: oklab(0.583 0.028 -0.229)
Lab (D50): lab(48.17 37.62 -81.09)
LCH (D50): lch(48.17 89.40 294.89)
Display P3: color(display-p3 0.3790 0.3728 0.9644)
Linear sRGB: color(srgb-linear 0.1195 0.1144 1.0000)

Gamut: sRGB and Display P3

#615FFF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.230 and Display P3 reaches 0.248; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #615fff;
  color: rgb(97 95 255);
  color: hsl(241 100% 69%);
  color: oklch(0.583 0.230 277.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.583 0.230 277.1);
}
/* arbitrary values */
class="text-[#615fff] bg-[oklch(0.583_0.230_277.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3790 0.3728 0.9644); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #615fff 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

#7173FF · oklch(0.643 0.230 277.1) · ΔL +0.06
#524AEA · oklch(0.523 0.230 277.1) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?