What color is #545EB5?

#545EB5 is a medium blue-violet. In RGB it is rgb(84, 94, 181), and in HSL hsl(234, 40%, 52%).

Is #545EB5 accessible as text?

On white, #545EB5 has a contrast ratio of 5.76:1 (passes WCAG AA for body text); on black it is 3.65:1 (fails). For text placed on #545EB5, use white for the best readability.

What is the closest Tailwind color to #545EB5?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #545EB5?

#545EB5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B6AC54. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #545EB5 below.

Is #545EB5 good for buttons?

#545EB5 works well for buttons and highlights, but use white text on #545EB5 — black text only reaches 3.65:1, below the 4.5:1 needed for normal-size labels.

Is #545EB5 the same as CSS slateblue?

No — #545EB5 is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#545EB5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #545EB5

Not just a swatch — here's how #545EB5 works with other colors. Named schemes with #545EB5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #545EB5 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #21344A

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

Vintage Leather Lead · 5 colors

Lead #545EB5 Secondary #7F4534 Surface #EED7C2 Accent #365247 Anchor #582239

Tanzanite plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #545EB5 Anchor #3B2924 Surface #F3E1D2 Accent #769F7B Secondary #3C3734

Tanzanite 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.

Berry & Cream Lead · 5 colors

Lead #545EB5 Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 Secondary #322B2F

Tanzanite 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 #545EB5 Secondary #8990AF Support #9D9088 Ink #18140F

Tanzanite 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 Tanzanite carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #545EB5 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 22/100

Cool

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

Softness 40/100

Moderate

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 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 100/100

Very high

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

Surface fit 13/100

Very low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #545EB5

For UI

For branding

For interior

For fashion

People also use #545EB5 with

Iceberg Royal Purple Brass 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 5.8:1. Use

Subtle surface Use #DFE1EE for cards and hover fills. Tint 80

Avoid beside #6A54B6 — 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 #545EB5 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

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: #545EB5;
  --color-base-rgb: 84 94 181;
  --color-base-oklch: oklch(51.8% 0.136 275.6);
  --color-50: #F4F5FB;
  --color-100: #E2E4F3;
  --color-200: #C6C9E6;
  --color-300: #9EA3D1;
  --color-400: #787FBA;
  --color-500: #575E9E;
  --color-600: #484D7A;
  --color-700: #373A58;
  --color-800: #27293A;
  --color-900: #191A24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  tanzanite: {
    50: '#F4F5FB',
    100: '#E2E4F3',
    200: '#C6C9E6',
    300: '#9EA3D1',
    400: '#787FBA',
    500: '#575E9E',
    600: '#484D7A',
    700: '#373A58',
    800: '#27293A',
    900: '#191A24',
  },
}

$base: #545EB5;
$base-ink: #FFFFFF;
$base-50: #F4F5FB;
$base-100: #E2E4F3;
$base-200: #C6C9E6;
$base-300: #9EA3D1;
$base-400: #787FBA;
$base-500: #575E9E;
$base-600: #484D7A;
$base-700: #373A58;
$base-800: #27293A;
$base-900: #191A24;
$base-hover: #404895;
$base-subtle: #CFD1E5;

{
    "color": {
        "base": {
            "value": "#545EB5",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F5FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E4F3",
                "type": "color"
            },
            "200": {
                "value": "#C6C9E6",
                "type": "color"
            },
            "300": {
                "value": "#9EA3D1",
                "type": "color"
            },
            "400": {
                "value": "#787FBA",
                "type": "color"
            },
            "500": {
                "value": "#575E9E",
                "type": "color"
            },
            "600": {
                "value": "#484D7A",
                "type": "color"
            },
            "700": {
                "value": "#373A58",
                "type": "color"
            },
            "800": {
                "value": "#27293A",
                "type": "color"
            },
            "900": {
                "value": "#191A24",
                "type": "color"
            }
        }
    }
}

Palettes built on #545EB5

Color Lab

Pairs with #545EB5

UI roles & guardrails

In real applications

Scales

Every model

Export