What color is #668EE3?

#668EE3 is a light, soft blue. In RGB it is rgb(102, 142, 227), and in HSL hsl(221, 69%, 65%).

Is #668EE3 accessible as text?

On white, #668EE3 has a contrast ratio of 3.21:1 (fails WCAG AA for body text); on black it is 6.54:1 (passes). For text placed on #668EE3, use black for the best readability.

What is the closest Tailwind color to #668EE3?

The nearest Tailwind CSS token is indigo-400 (#7C86FF).

What colors go well with #668EE3?

#668EE3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E3BC68. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #668EE3 below.

Is #668EE3 good for buttons?

#668EE3 works well for buttons and highlights, but use black text on #668EE3 — white text only reaches 3.21:1, below the 4.5:1 needed for normal-size labels.

Is #668EE3 the same as CSS cornflowerblue?

No — #668EE3 is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#668EE3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #668EE3

Not just a swatch — here's how #668EE3 works with other colors. Named schemes with #668EE3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #668EE3 Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Nordic Calm Accent · 5 colors

Accent #668EE3 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A7 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #668EE3 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8EB5FF

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #668EE3 Secondary #ADBDDC Support #9D8F88 Ink #18140F

Cornflower Blue 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 Cornflower Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #668EE3 Anchor #3B2924 Surface #F3E1D2 Accent #789E79 Secondary #3C3734

Cornflower Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #668EE3 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 17/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 50/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 41/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 52/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 76/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 26/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #668EE3

For UI

For branding

For interior

For fashion

People also use #668EE3 with

Light Blue Medium Slate Blue Burlywood Gainsboro Charcoal

UI roles & guardrails

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

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

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.8:1. Use

Subtle surface Use #E4EAF6 for cards and hover fills. Tint 80

Avoid beside #6A68E3 — 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 #668EE3 at work across the surfaces designers actually ship.

Website / UI

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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: #668EE3;
  --color-base-rgb: 102 142 227;
  --color-base-oklch: oklch(65.5% 0.135 264.0);
  --color-50: #F2F5FD;
  --color-100: #DCE5F9;
  --color-200: #BACCF2;
  --color-300: #8BA7E4;
  --color-400: #6084D2;
  --color-500: #3E64B7;
  --color-600: #36518C;
  --color-700: #2C3D63;
  --color-800: #202A41;
  --color-900: #151B28;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cornflower-blue: {
    50: '#F2F5FD',
    100: '#DCE5F9',
    200: '#BACCF2',
    300: '#8BA7E4',
    400: '#6084D2',
    500: '#3E64B7',
    600: '#36518C',
    700: '#2C3D63',
    800: '#202A41',
    900: '#151B28',
  },
}

$base: #668EE3;
$base-ink: #141310;
$base-50: #F2F5FD;
$base-100: #DCE5F9;
$base-200: #BACCF2;
$base-300: #8BA7E4;
$base-400: #6084D2;
$base-500: #3E64B7;
$base-600: #36518C;
$base-700: #2C3D63;
$base-800: #202A41;
$base-900: #151B28;
$base-hover: #3066D9;
$base-subtle: #D6DFF2;

{
    "color": {
        "base": {
            "value": "#668EE3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F5FD",
                "type": "color"
            },
            "100": {
                "value": "#DCE5F9",
                "type": "color"
            },
            "200": {
                "value": "#BACCF2",
                "type": "color"
            },
            "300": {
                "value": "#8BA7E4",
                "type": "color"
            },
            "400": {
                "value": "#6084D2",
                "type": "color"
            },
            "500": {
                "value": "#3E64B7",
                "type": "color"
            },
            "600": {
                "value": "#36518C",
                "type": "color"
            },
            "700": {
                "value": "#2C3D63",
                "type": "color"
            },
            "800": {
                "value": "#202A41",
                "type": "color"
            },
            "900": {
                "value": "#151B28",
                "type": "color"
            }
        }
    }
}

Palettes built on #668EE3

Color Lab

Pairs with #668EE3

UI roles & guardrails

In real applications

Scales

Every model

Export