OKLCH to HEX: #A52A2A

Also known as: CSS brown

Result

oklch(0.48061 0.15966 25.562) → #A52A2A

Values are shown at full precision, so converting back gives exactly #a52a2a. 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. input

    oklch(0.48061 0.15966 25.562)
  2. 2. OKLCH → Oklab

    a = C·cos H = 0.14403
    b = C·sin H = 0.06889
  3. 3. Oklab → LMS′

    l′ = L + 0.3963·a + 0.2158·b = 0.552562
    m′ = L − 0.1056·a − 0.0639·b = 0.461007
    s′ = L − 0.0895·a − 1.2915·b = 0.378749
  4. 4. cube

    l = 0.552562³ = 0.168711
    m = 0.461007³ = 0.097976
    s = 0.378749³ = 0.054332
  5. 5. LMS → linear sRGB

    R = 4.0767·l − 3.3077·m + 0.2310·s = 0.376263
    G = −1.2684·l + 2.6098·m − 0.3413·s = 0.023151
    B = −0.0042·l − 0.7034·m + 1.7076·s = 0.023152
  6. 6. linear → sRGB, × 255

    R = 0.64706 × 255 = 165.00 → 165
    G = 0.16469 × 255 = 42.00 → 42
    B = 0.16470 × 255 = 42.00 → 42
  7. 7. RGB → HEX

    #A52A2A

All formats

HEX
#a52a2a
RGB
rgb(165 42 42)
RGB (legacy)
rgb(165, 42, 42)
HSL
hsl(0.00 59.42% 40.59%) → hsl(0 59% 41%)
HWB
hwb(0 16% 35%)
OKLCH
oklch(0.481 0.160 25.6) · oklch(48.1% 0.160 25.6)
OKLab
oklab(0.481 0.144 0.069)
Lab (D50)
lab(38.15 50.38 31.83)
LCH (D50)
lch(38.15 59.60 32.29)
Display P3
color(display-p3 0.5957 0.2056 0.1870)
Linear sRGB
color(srgb-linear 0.3763 0.0232 0.0232)

Gamut: sRGB and Display P3

#A52A2A is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.195 and Display P3 reaches 0.220; this color uses 82% of the sRGB chroma available.

CSS snippets

.element {
  color: #a52a2a;
  color: rgb(165 42 42);
  color: hsl(0 59% 41%);
  color: oklch(0.481 0.160 25.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.481 0.160 25.6);
}
/* arbitrary values */
class="text-[#a52a2a] bg-[oklch(0.481_0.160_25.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5957 0.2056 0.1870); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #a52a2a 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

  • #BA3E3B · oklch(0.541 0.160 25.6) · ΔL +0.06
  • #911119 · oklch(0.421 0.160 25.6) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?