What color is #0866EA?

#0866EA is a medium, vivid blue. In RGB it is rgb(8, 102, 234), and in HSL hsl(215, 93%, 47%).

Is #0866EA accessible as text?

On white, #0866EA has a contrast ratio of 5.12:1 (passes WCAG AA for body text); on black it is 4.10:1 (fails). For text placed on #0866EA, use white for the best readability.

What is the closest Tailwind color to #0866EA?

The nearest Tailwind CSS token is blue-600 (#155DFC).

What colors go well with #0866EA?

#0866EA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E78A08. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0866EA below.

Is #0866EA good for buttons?

#0866EA works well for buttons and highlights, but use white text on #0866EA — black text only reaches 4.10:1, below the 4.5:1 needed for normal-size labels.

Is #0866EA the same as CSS royalblue?

No — #0866EA is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#0866EA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0866EA

Not just a swatch — here's how #0866EA works with other colors. Named schemes with #0866EA in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #0866EA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4590FF

Royal 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 Royal Blue.

Coastal Morning Lead · 5 colors

Lead #0866EA Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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

Berry & Cream Lead · 5 colors

Lead #0866EA Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Royal Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #0866EA Secondary #7F9BC9 Support #9D8F88 Ink #16140F

Royal 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 Royal Blue carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #0866EA Secondary #E76A76 Accent #F79152 Anchor #573B58 Surface #EEEBD6

Royal Blue glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #0866EA 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 7/100

Cool

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 49/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 20/100

Low

Clean and current — no dusty, aged cast.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 83/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 80/100

High

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

Surface fit 12/100

Very low

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

Print safety 58/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #0866EA

For UI

For branding

For interior

For fashion

People also use #0866EA with

Cyan Blue Peru Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

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

Background Pair with white text at 5.1:1. Use

Subtle surface Use #D2E1F6 for cards and hover fills. Tint 80

Avoid beside #081BE7 — 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 #0866EA 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: #0866EA;
  --color-base-rgb: 8 102 234;
  --color-base-oklch: oklch(54.6% 0.214 259.7);
  --color-50: #F0F6FE;
  --color-100: #D8E7FD;
  --color-200: #B1D0FC;
  --color-300: #7CAEF4;
  --color-400: #4C8CE6;
  --color-500: #296DCC;
  --color-600: #27579B;
  --color-700: #22416D;
  --color-800: #1A2D47;
  --color-900: #121D2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F0F6FE',
    100: '#D8E7FD',
    200: '#B1D0FC',
    300: '#7CAEF4',
    400: '#4C8CE6',
    500: '#296DCC',
    600: '#27579B',
    700: '#22416D',
    800: '#1A2D47',
    900: '#121D2B',
  },
}

$base: #0866EA;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D8E7FD;
$base-200: #B1D0FC;
$base-300: #7CAEF4;
$base-400: #4C8CE6;
$base-500: #296DCC;
$base-600: #27579B;
$base-700: #22416D;
$base-800: #1A2D47;
$base-900: #121D2B;
$base-hover: #0751B9;
$base-subtle: #BAD2F3;

{
    "color": {
        "base": {
            "value": "#0866EA",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E7FD",
                "type": "color"
            },
            "200": {
                "value": "#B1D0FC",
                "type": "color"
            },
            "300": {
                "value": "#7CAEF4",
                "type": "color"
            },
            "400": {
                "value": "#4C8CE6",
                "type": "color"
            },
            "500": {
                "value": "#296DCC",
                "type": "color"
            },
            "600": {
                "value": "#27579B",
                "type": "color"
            },
            "700": {
                "value": "#22416D",
                "type": "color"
            },
            "800": {
                "value": "#1A2D47",
                "type": "color"
            },
            "900": {
                "value": "#121D2B",
                "type": "color"
            }
        }
    }
}

Palettes built on #0866EA

Color Lab

Pairs with #0866EA

UI roles & guardrails

In real applications

Scales

Every model

Export