RGB to HEX: #2A212C

Result

Values are shown at full precision, so converting back gives exactly #2a212c. 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. base 10 → base 16

   R = 42 = 2×16 + 10 → 2A
   G = 33 = 2×16 + 1 → 21
   B = 44 = 2×16 + 12 → 2C

2. 2. pairs → HEX

   2A 21 2C → #2A212C

All formats

HEX

#2a212c

RGB

rgb(42 33 44)

RGB (legacy)

rgb(42, 33, 44)

HSL

hsl(289.09 14.29% 15.10%) → hsl(289 14% 15%)

HWB

hwb(289 13% 83%)

OKLCH

oklch(0.263 0.024 320.1) · oklch(26.3% 0.024 320.1)

OKLab

oklab(0.263 0.018 -0.015)

Lab (D50)

lab(14.16 6.34 -5.67)

LCH (D50)

lch(14.16 8.51 318.22)

Display P3

color(display-p3 0.1590 0.1307 0.1697)

Linear sRGB

color(srgb-linear 0.0232 0.0152 0.0252)

Gamut: sRGB and Display P3

#2A212C is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.126 and Display P3 reaches 0.136; this color uses 19% of the sRGB chroma available.

CSS snippets

.element {
  color: #2a212c;
  color: rgb(42 33 44);
  color: hsl(289 14% 15%);
  color: oklch(0.263 0.024 320.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.263 0.024 320.1);
}
/* arbitrary values */
class="text-[#2a212c] bg-[oklch(0.263_0.024_320.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1590 0.1307 0.1697); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #2a212c calc(l - 0.1) c h); }

Nearby colors

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

• zinc-800#27272A
• stone-800#292524
• taupe-800#2B2422
• neutral-800#262626
• mist-800#22292B
• v3 gray-800#1F2937
• gray-800#1E2939
• v3 slate-800#1E293B

Lighter and darker, same hue and chroma

• #39303B · oklch(0.323 0.024 320.1) · ΔL +0.06
• #1C131D · oklch(0.203 0.024 320.1) · ΔL −0.06

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