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Placebo Blue#ebf4fcrgb(235, 244, 252) · blue

Placebo Blue #ebf4fc

Placebo Blue is the registered name for #ebf4fc. Below: values, variations, harmonies, contrast and ready-to-paste CSS.

Color values

The same color written in every notation you are likely to need. Click any row to copy it.

What HEX means

#ebf4fc packs three channels into hexadecimal pairs from 00 to FF: eb red, f4 green, fc blue.

What RGB means

Red 235, green 244, blue 252 — each from 0 to 255. It is the same color as the hex above, just in decimal.

What HSL means

Hue 208° (blue), saturation 74%, lightness 95%. HSL is handy when you want the same hue a little lighter or less saturated.

Why OKLCH

OKLCH is a perceptual space — changing its lightness (96.3%) matches how your eye reads brightness far better than HSL, which is why the palette below is generated in it.

Accessibility & contrast

WCAG requires at least 4.5:1 for normal text and 3:1 for large text at level AA. Use this to decide whether white or black text belongs on this color.

AaThis text is readable
White text1.11:1
AA AAA AA Large
AaThis text is readable
Black text18.88:1
AA AAA AA Large

Closest accessible alternative

Nudged in lightness to reach 4.5:1 while keeping the hue as close as possible.

Aa

For white text

#6e767d

4.61:1

UI preview

How this color behaves in a real interface, not just as a square.

Badge

A paragraph with a themed link inside it.

Information

An alert accented with this color.

Progress

Tints & shades

A tint mixes the color toward white; a shade mixes it toward black. Click any swatch to open it.

Color harmonies

Schemes built by rotating the hue around the color wheel — the starting point for a coherent palette.

Complementary

Opposite on the wheel — maximum contrast.

Analogous

Neighbours on the wheel — calm and cohesive.

Triadic

Three hues 120° apart — vivid but balanced.

Split complementary

Softer than a straight complement.

Tetradic

Four hues — enough for a design system.

Palette generator

A Tailwind-style 50–950 ramp anchored on this color at step 500, generated in OKLCH so the steps feel evenly spaced.

:root {
  --primary-50: #f5f8fa;
  --primary-100: #eaedf1;
  --primary-200: #d5dade;
  --primary-300: #bbc2c8;
  --primary-400: #9ba3a9;
  --primary-500: #ebf4fc;
  --primary-600: #61696f;
  --primary-700: #4d5359;
  --primary-800: #3c4247;
  --primary-900: #303539;
  --primary-950: #1a1d20;
}

Gradient

A linear blend from this color to its complement, with the CSS ready to paste.

background: linear-gradient(135deg, #ebf4fc, #fcf2e9);

Nearest named colors

The closest matches from a corpus of about 31,900 named colours, ranked by ΔE (CIEDE2000) — a measure of how different two colours look. ΔE under 1 is nearly indistinguishable; around 10 is clearly different.

CSS code

Every common way to use this color in a stylesheet or a component.

color: #ebf4fc;
background-color: #ebf4fc;
:root {
  --color-primary: #ebf4fc;
}
color: rgb(235 244 252);
color: oklch(96.3% 0.0144 244.72);
<div class="bg-[#ebf4fc]">…</div>