What color is #648DDC?

#648DDC is a light, soft blue. In RGB it is rgb(100, 141, 220), and in HSL hsl(220, 63%, 63%).

Is #648DDC accessible as text?

On white, #648DDC has a contrast ratio of 3.29:1 (fails WCAG AA for body text); on black it is 6.39:1 (passes). For text placed on #648DDC, use black for the best readability.

What is the closest Tailwind color to #648DDC?

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

What colors go well with #648DDC?

#648DDC pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DCB465. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #648DDC below.

Is #648DDC good for buttons?

#648DDC works well for buttons and highlights, but use black text on #648DDC — white text only reaches 3.29:1, below the 4.5:1 needed for normal-size labels.

Is #648DDC the same as CSS cornflowerblue?

No — #648DDC is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#648DDC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #648DDC

Not just a swatch — here's how #648DDC works with other colors. Named schemes with #648DDC in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #648DDC Accent #A5C4C1 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 #648DDC 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 #648DDC Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8CB3FD

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 #648DDC Secondary #ABBBD7 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 #648DDC Anchor #3B2924 Surface #F3E1D2 Accent #789E79 Secondary #3D3734

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 #648DDC 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 18/100

Cool

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

Softness 50/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

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 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 78/100

High

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

Surface fit 28/100

Low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #648DDC

For UI

For branding

For interior

For fashion

People also use #648DDC with

Sky Blue Medium Slate Blue Fawn 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 5.6:1. Use

Subtle surface Use #E4E9F5 for cards and hover fills. Tint 80

Avoid beside #6565DC — 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 #648DDC at work across the surfaces designers actually ship.

Website / UI

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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: #648DDC;
  --color-base-rgb: 100 141 220;
  --color-base-oklch: oklch(64.8% 0.127 262.6);
  --color-50: #F2F6FD;
  --color-100: #DDE6F8;
  --color-200: #BDCEF0;
  --color-300: #8FAAE0;
  --color-400: #6588CD;
  --color-500: #4368B2;
  --color-600: #3A5488;
  --color-700: #2E3F61;
  --color-800: #212B40;
  --color-900: #161C27;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cornflower-blue: {
    50: '#F2F6FD',
    100: '#DDE6F8',
    200: '#BDCEF0',
    300: '#8FAAE0',
    400: '#6588CD',
    500: '#4368B2',
    600: '#3A5488',
    700: '#2E3F61',
    800: '#212B40',
    900: '#161C27',
  },
}

$base: #648DDC;
$base-ink: #141310;
$base-50: #F2F6FD;
$base-100: #DDE6F8;
$base-200: #BDCEF0;
$base-300: #8FAAE0;
$base-400: #6588CD;
$base-500: #4368B2;
$base-600: #3A5488;
$base-700: #2E3F61;
$base-800: #212B40;
$base-900: #161C27;
$base-hover: #3166D0;
$base-subtle: #D5DEF0;

{
    "color": {
        "base": {
            "value": "#648DDC",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F6FD",
                "type": "color"
            },
            "100": {
                "value": "#DDE6F8",
                "type": "color"
            },
            "200": {
                "value": "#BDCEF0",
                "type": "color"
            },
            "300": {
                "value": "#8FAAE0",
                "type": "color"
            },
            "400": {
                "value": "#6588CD",
                "type": "color"
            },
            "500": {
                "value": "#4368B2",
                "type": "color"
            },
            "600": {
                "value": "#3A5488",
                "type": "color"
            },
            "700": {
                "value": "#2E3F61",
                "type": "color"
            },
            "800": {
                "value": "#212B40",
                "type": "color"
            },
            "900": {
                "value": "#161C27",
                "type": "color"
            }
        }
    }
}

Palettes built on #648DDC

Color Lab

Pairs with #648DDC

UI roles & guardrails

In real applications

Scales

Every model

Export