What color is #376AEB?

#376AEB is a medium, vivid blue. In RGB it is rgb(55, 106, 235), and in HSL hsl(223, 82%, 57%).

Is #376AEB accessible as text?

On white, #376AEB has a contrast ratio of 4.75:1 (passes WCAG AA for body text); on black it is 4.42:1 (fails). For text placed on #376AEB, use white for the best readability.

What is the closest Tailwind color to #376AEB?

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

What colors go well with #376AEB?

#376AEB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EBB837. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #376AEB below.

Is #376AEB good for buttons?

#376AEB works well for buttons and highlights, but use white text on #376AEB — black text only reaches 4.42:1, below the 4.5:1 needed for normal-size labels.

Is #376AEB the same as CSS royalblue?

No — #376AEB is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#376AEB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #376AEB

Not just a swatch — here's how #376AEB works with other colors. Named schemes with #376AEB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #376AEB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6093FF

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 #376AEB Accent #A5C4C2 Surface #DDDBBF 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 #376AEB Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA 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 #376AEB Secondary #8AA0CD 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 #376AEB Secondary #E76A75 Accent #F79251 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 #376AEB 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 9/100

Cool

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 47/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 78/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 84/100

Very high

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

Surface fit 14/100

Very low

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

Print safety 63/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #376AEB

For UI

For branding

For interior

For fashion

People also use #376AEB with

Bright Sky Violet Honey 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 4.7:1. Use

Subtle surface Use #DCE3F6 for cards and hover fills. Tint 80

Avoid beside #4037EB — 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 #376AEB 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: #376AEB;
  --color-base-rgb: 55 106 235;
  --color-base-oklch: oklch(56.5% 0.203 264.4);
  --color-50: #F0F4FE;
  --color-100: #D9E3FC;
  --color-200: #B5C8F8;
  --color-300: #83A1ED;
  --color-400: #557CDD;
  --color-500: #325BC3;
  --color-600: #2E4B94;
  --color-700: #263969;
  --color-800: #1D2844;
  --color-900: #141A2A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  royal-blue: {
    50: '#F0F4FE',
    100: '#D9E3FC',
    200: '#B5C8F8',
    300: '#83A1ED',
    400: '#557CDD',
    500: '#325BC3',
    600: '#2E4B94',
    700: '#263969',
    800: '#1D2844',
    900: '#141A2A',
  },
}

$base: #376AEB;
$base-ink: #FFFFFF;
$base-50: #F0F4FE;
$base-100: #D9E3FC;
$base-200: #B5C8F8;
$base-300: #83A1ED;
$base-400: #557CDD;
$base-500: #325BC3;
$base-600: #2E4B94;
$base-700: #263969;
$base-800: #1D2844;
$base-900: #141A2A;
$base-hover: #154BD4;
$base-subtle: #CAD5F3;

{
    "color": {
        "base": {
            "value": "#376AEB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F4FE",
                "type": "color"
            },
            "100": {
                "value": "#D9E3FC",
                "type": "color"
            },
            "200": {
                "value": "#B5C8F8",
                "type": "color"
            },
            "300": {
                "value": "#83A1ED",
                "type": "color"
            },
            "400": {
                "value": "#557CDD",
                "type": "color"
            },
            "500": {
                "value": "#325BC3",
                "type": "color"
            },
            "600": {
                "value": "#2E4B94",
                "type": "color"
            },
            "700": {
                "value": "#263969",
                "type": "color"
            },
            "800": {
                "value": "#1D2844",
                "type": "color"
            },
            "900": {
                "value": "#141A2A",
                "type": "color"
            }
        }
    }
}