HEX to OKLCH: #A89EA9

Also known as: Tailwind mauve-400

#A89EA9 → oklch(0.711 0.019 323.0)

Values are shown at full precision, so converting back gives exactly #a89ea9. 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. sRGB → linear

R: 168/255 = 0.65882 → 0.391572  (((x + 0.055) / 1.055)^2.4)
G: 158/255 = 0.61961 → 0.341914  (((x + 0.055) / 1.055)^2.4)
B: 169/255 = 0.66275 → 0.396755  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.365206
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.358327
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.380848

3. cube root

l′ = ∛0.365206 = 0.714791
m′ = ∛0.358327 = 0.710275
s′ = ∛0.380848 = 0.724854

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.71117
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.01550
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.01167

5. Oklab → OKLCH

C = √(a² + b²) = 0.01941
H = atan2(b, a) = 323.022°
L = 0.71117

6. OKLCH

oklch(0.71117 0.01941 323.022)
rounded: oklch(0.711 0.019 323.0)

All formats

HEX: #a89ea9
RGB: rgb(168 158 169)
RGB (legacy): rgb(168, 158, 169)
HSL: hsl(294.55 6.01% 64.12%) → hsl(295 6% 64%)
HWB: hwb(295 62% 34%)
OKLCH: oklch(0.711 0.019 323.0) · oklch(71.1% 0.019 323.0)
OKLab: oklab(0.711 0.016 -0.012)
Lab (D50): lab(66.24 5.30 -4.36)
LCH (D50): lch(66.24 6.87 320.52)
Display P3: color(display-p3 0.6521 0.6210 0.6597)
Linear sRGB: color(srgb-linear 0.3916 0.3419 0.3968)

Gamut: sRGB and Display P3

#A89EA9 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.267 and Display P3 reaches 0.292; this color uses 7% of the sRGB chroma available.

CSS snippets

.element {
  color: #a89ea9;
  color: rgb(168 158 169);
  color: hsl(295 6% 64%);
  color: oklch(0.711 0.019 323.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.711 0.019 323.0);
}
/* arbitrary values */
class="text-[#a89ea9] bg-[oklch(0.711_0.019_323.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.6521 0.6210 0.6597); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #a89ea9 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

#BBB1BC · oklch(0.771 0.019 323.0) · ΔL +0.06
#968C97 · oklch(0.651 0.019 323.0) · ΔL −0.06

Open in the studio

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