HEX to OKLCH: #ABAB9C

Also known as: Tailwind olive-400

#ABAB9C → oklch(0.737 0.021 106.9)

Values are shown at full precision, so converting back gives exactly #abab9c. 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: 171/255 = 0.67059 → 0.407240  (((x + 0.055) / 1.055)^2.4)
G: 171/255 = 0.67059 → 0.407240  (((x + 0.055) / 1.055)^2.4)
B: 156/255 = 0.61176 → 0.332452  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.403393
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.399208
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.360125

3. cube root

l′ = ∛0.403393 = 0.738884
m′ = ∛0.399208 = 0.736320
s′ = ∛0.360125 = 0.711461

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.73696
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.00613
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.02017

5. Oklab → OKLCH

C = √(a² + b²) = 0.02108
H = atan2(b, a) = 106.906°
L = 0.73696

6. OKLCH

oklch(0.73696 0.02108 106.906)
rounded: oklch(0.737 0.021 106.9)

All formats

HEX: #abab9c
RGB: rgb(171 171 156)
RGB (legacy): rgb(171, 171, 156)
HSL: hsl(60.00 8.20% 64.12%) → hsl(60 8% 64%)
HWB: hwb(60 61% 33%)
OKLCH: oklch(0.737 0.021 106.9) · oklch(73.7% 0.021 106.9)
OKLab: oklab(0.737 -0.006 0.020)
Lab (D50): lab(69.66 -2.02 7.76)
LCH (D50): lch(69.66 8.02 104.57)
Display P3: color(display-p3 0.6706 0.6706 0.6173)
Linear sRGB: color(srgb-linear 0.4072 0.4072 0.3325)

Gamut: sRGB and Display P3

#ABAB9C is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.158 and Display P3 reaches 0.183; this color uses 13% of the sRGB chroma available.

CSS snippets

.element {
  color: #abab9c;
  color: rgb(171 171 156);
  color: hsl(60 8% 64%);
  color: oklch(0.737 0.021 106.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.737 0.021 106.9);
}
/* arbitrary values */
class="text-[#abab9c] bg-[oklch(0.737_0.021_106.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.6706 0.6706 0.6173); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #abab9c 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

#BEBEAF · oklch(0.797 0.021 106.9) · ΔL +0.06
#98988A · oklch(0.677 0.021 106.9) · ΔL −0.06

Open in the studio

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