What color is #ECF0FC?

#ECF0FC is a pale low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(236, 240, 252), and in HSL hsl(225, 73%, 96%).

Is #ECF0FC accessible as text?

On white, #ECF0FC has a contrast ratio of 1.14:1 (fails WCAG AA for body text); on black it is 18.44:1 (passes). For text placed on #ECF0FC, use black for the best readability.

What is the closest Tailwind color to #ECF0FC?

The nearest Tailwind CSS token is slate-100 (#F1F5F9).

What colors go well with #ECF0FC?

As a neutral, #ECF0FC pairs cleanly with charcoal, near-black and dark grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a soft background and let the accent carry the color.

Is #ECF0FC the same as CSS aliceblue?

No — #ECF0FC is not the CSS named color aliceblue, but aliceblue (#F0F8FF) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#ECF0FC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #ECF0FC

Not just a swatch — here's how #ECF0FC works with other colors. Named schemes with #ECF0FC in its natural role, and a note on why the supporting colors balance it.

Japanese Sand Base · 5 colors

Base #ECF0FC Surface #F2E8DD Highlight #F8F0E7 Secondary #BEACA2 Ink #2C2724

Cool White sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Coastal Morning Lead · 5 colors

Lead #ECF0FC Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Cool White opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #ECF0FC Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #F6FAFF

Cool White is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cool White.

Nordic Calm Accent · 5 colors

Accent #ECF0FC Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Cool White keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #ECF0FC Secondary #F8FAFE Support #9D8F88 Ink #18140F

Cool White is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Cool White carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #ECF0FC actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 46/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 93/100

Very high

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 4/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 16/100

Very low

Clean and current — no dusty, aged cast.

Luxury 7/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 6/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 2/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 91/100

Very high

Calm enough for large fills — backgrounds, cards, sections.

Print safety 97/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #ECF0FC

For UI

For branding

For interior

For fashion

People also use #ECF0FC with

Pale Turquoise Cool White Floral White Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

Body text Do not use for body copy on light surfaces. Avoid

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 16.3:1. Use

Subtle surface Use #FCFCFE for cards and hover fills. Tint 80

Avoid beside #EFEDFC — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #ECF0FC at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #ECF0FC;
  --color-base-rgb: 236 240 252;
  --color-base-oklch: oklch(95.6% 0.017 271.2);
  --color-50: #F1F4FD;
  --color-100: #DBE3FA;
  --color-200: #B9C7F4;
  --color-300: #88A0E7;
  --color-400: #5D7BD5;
  --color-500: #3A5ABB;
  --color-600: #334A8E;
  --color-700: #2A3965;
  --color-800: #1F2842;
  --color-900: #151A28;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cool-white: {
    50: '#F1F4FD',
    100: '#DBE3FA',
    200: '#B9C7F4',
    300: '#88A0E7',
    400: '#5D7BD5',
    500: '#3A5ABB',
    600: '#334A8E',
    700: '#2A3965',
    800: '#1F2842',
    900: '#151A28',
  },
}

$base: #ECF0FC;
$base-ink: #141310;
$base-50: #F1F4FD;
$base-100: #DBE3FA;
$base-200: #B9C7F4;
$base-300: #88A0E7;
$base-400: #5D7BD5;
$base-500: #3A5ABB;
$base-600: #334A8E;
$base-700: #2A3965;
$base-800: #1F2842;
$base-900: #151A28;
$base-hover: #99AEEF;
$base-subtle: #FAFBFE;

{
    "color": {
        "base": {
            "value": "#ECF0FC",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE3FA",
                "type": "color"
            },
            "200": {
                "value": "#B9C7F4",
                "type": "color"
            },
            "300": {
                "value": "#88A0E7",
                "type": "color"
            },
            "400": {
                "value": "#5D7BD5",
                "type": "color"
            },
            "500": {
                "value": "#3A5ABB",
                "type": "color"
            },
            "600": {
                "value": "#334A8E",
                "type": "color"
            },
            "700": {
                "value": "#2A3965",
                "type": "color"
            },
            "800": {
                "value": "#1F2842",
                "type": "color"
            },
            "900": {
                "value": "#151A28",
                "type": "color"
            }
        }
    }
}

Palettes built on #ECF0FC

Color Lab

Pairs with #ECF0FC

UI roles & guardrails

In real applications

Scales

Every model

Export