What color is #516BEB?

#516BEB is a light, vivid blue. In RGB it is rgb(81, 107, 235), and in HSL hsl(230, 79%, 62%).

Is #516BEB accessible as text?

On white, #516BEB has a contrast ratio of 4.51:1 (passes WCAG AA for body text); on black it is 4.65:1 (passes). For text placed on #516BEB, use black for the best readability.

What is the closest Tailwind color to #516BEB?

The nearest Tailwind CSS token is indigo-500 (#615FFF).

What colors go well with #516BEB?

#516BEB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EBD152. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #516BEB below.

Is #516BEB good for buttons?

#516BEB works for buttons; black text has the higher contrast, so prefer it for labels.

Is #516BEB the same as CSS royalblue?

No — #516BEB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#516BEB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #516BEB

Not just a swatch — here's how #516BEB works with other colors. Named schemes with #516BEB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #516BEB Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #7694FF

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 #516BEB Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

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 #516BEB Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 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 #F8F4EF Accent #516BEB Secondary #94A3D0 Support #9D8F88 Ink #18140F

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 #516BEB Secondary #E86A73 Accent #F69250 Anchor #573B58 Surface #F7E7D7

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 #516BEB 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 12/100

Cool

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

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 45/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 75/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 85/100

Very high

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

Surface fit 15/100

Very low

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

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #516BEB

For UI

For branding

For interior

For fashion

People also use #516BEB with

Sky Blue Medium Slate Blue Saffron Gainsboro Prussian Blue

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 4.5:1. Use

Subtle surface Use #E1E4F7 for cards and hover fills. Tint 80

Avoid beside #6B52EB — 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 #516BEB 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: #516BEB;
  --color-base-rgb: 81 107 235;
  --color-base-oklch: oklch(57.9% 0.195 270.5);
  --color-50: #F1F3FE;
  --color-100: #DADFFC;
  --color-200: #B6C1F6;
  --color-300: #8596EB;
  --color-400: #586DDA;
  --color-500: #354CC0;
  --color-600: #304092;
  --color-700: #283267;
  --color-800: #1D2443;
  --color-900: #141729;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F1F3FE',
    100: '#DADFFC',
    200: '#B6C1F6',
    300: '#8596EB',
    400: '#586DDA',
    500: '#354CC0',
    600: '#304092',
    700: '#283267',
    800: '#1D2443',
    900: '#141729',
  },
}

$base: #516BEB;
$base-ink: #141310;
$base-50: #F1F3FE;
$base-100: #DADFFC;
$base-200: #B6C1F6;
$base-300: #8596EB;
$base-400: #586DDA;
$base-500: #354CC0;
$base-600: #304092;
$base-700: #283267;
$base-800: #1D2443;
$base-900: #141729;
$base-hover: #1B3CE2;
$base-subtle: #D0D6F3;

{
    "color": {
        "base": {
            "value": "#516BEB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F3FE",
                "type": "color"
            },
            "100": {
                "value": "#DADFFC",
                "type": "color"
            },
            "200": {
                "value": "#B6C1F6",
                "type": "color"
            },
            "300": {
                "value": "#8596EB",
                "type": "color"
            },
            "400": {
                "value": "#586DDA",
                "type": "color"
            },
            "500": {
                "value": "#354CC0",
                "type": "color"
            },
            "600": {
                "value": "#304092",
                "type": "color"
            },
            "700": {
                "value": "#283267",
                "type": "color"
            },
            "800": {
                "value": "#1D2443",
                "type": "color"
            },
            "900": {
                "value": "#141729",
                "type": "color"
            }
        }
    }
}