HEX to OKLCH: #075985

Result

Values are shown at full precision, so converting back gives exactly #075985. 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. 1. sRGB → linear

   R: 7/255 = 0.02745 → 0.002125  (÷ 12.92)
   G: 89/255 = 0.34902 → 0.099899  (((x + 0.055) / 1.055)^2.4)
   B: 133/255 = 0.52157 → 0.234551  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.066521
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.093641
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.176093

3. 3. cube root

   l′ = ∛0.066521 = 0.405186
   m′ = ∛0.093641 = 0.454104
   s′ = ∛0.176093 = 0.560506

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.44338
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.04882
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.08731

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.10003
   H = atan2(b, a) = 240.790°
   L = 0.44338

6. 6. OKLCH

   oklch(0.44338 0.10003 240.790)
   rounded: oklch(0.443 0.100 240.8)

All formats

HEX

#075985

RGB

rgb(7 89 133)

RGB (legacy)

rgb(7, 89, 133)

HSL

hsl(200.95 90.00% 27.45%) → hsl(201 90% 27%)

HWB

hwb(201 3% 48%)

OKLCH

oklch(0.443 0.100 240.8) · oklch(44.3% 0.100 240.8)

OKLab

oklab(0.443 -0.049 -0.087)

Lab (D50)

lab(35.26 -9.48 -31.39)

LCH (D50)

lch(35.26 32.79 253.19)

Display P3

color(display-p3 0.1495 0.3435 0.5073)

Linear sRGB

color(srgb-linear 0.0021 0.0999 0.2346)

Gamut: sRGB and Display P3

#075985 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.103 and Display P3 reaches 0.134; this color uses 97% of the sRGB chroma available.

CSS snippets

.element {
  color: #075985;
  color: rgb(7 89 133);
  color: hsl(201 90% 27%);
  color: oklch(0.443 0.100 240.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.443 0.100 240.8);
}
/* arbitrary values */
class="text-[#075985] bg-[oklch(0.443_0.100_240.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1495 0.3435 0.5073); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #075985 calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

• sky-800#00598A
• cyan-800#005F78
• v3 cyan-800#155E75
• sky-900#024A70
• v3 sky-900#0C4A6E
• cyan-900#104E64
• v3 cyan-900#164E63
• v3 sky-700#0369A1

Lighter and darker, same hue and chroma

• #226A98 · oklch(0.503 0.100 240.8) · ΔL +0.06
• #004873 · oklch(0.383 0.100 240.8) · ΔL −0.06

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