What color is #565BB5?

#565BB5 is a medium blue-violet. In RGB it is rgb(86, 91, 181), and in HSL hsl(237, 39%, 52%).

Is #565BB5 accessible as text?

On white, #565BB5 has a contrast ratio of 5.90:1 (passes WCAG AA for body text); on black it is 3.56:1 (fails). For text placed on #565BB5, use white for the best readability.

What is the closest Tailwind color to #565BB5?

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

What colors go well with #565BB5?

#565BB5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B4B055. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #565BB5 below.

Is #565BB5 good for buttons?

#565BB5 works well for buttons and highlights, but use white text on #565BB5 — black text only reaches 3.56:1, below the 4.5:1 needed for normal-size labels.

Is #565BB5 the same as CSS slateblue?

No — #565BB5 is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#565BB5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #565BB5

Not just a swatch — here's how #565BB5 works with other colors. Named schemes with #565BB5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #565BB5 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #22344A

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 #565BB5 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 #565BB5 Anchor #3B2923 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 #565BB5 Surface #F6E5D8 Anchor #5B2142 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 #565BB5 Secondary #898EAE 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.

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Color Lab

How #565BB5 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 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 50/100

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 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 38/100

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 11/100

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 #565BB5

For UI

For branding

For interior

For fashion

People also use #565BB5 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 5.9:1. Use

Subtle surface Use #E0E0ED for cards and hover fills. Tint 80

Avoid beside #7055B4 — 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 #565BB5 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: #565BB5;
  --color-base-rgb: 86 91 181;
  --color-base-oklch: oklch(51.3% 0.140 277.9);
  --color-50: #F4F4FB;
  --color-100: #E2E3F3;
  --color-200: #C6C8E6;
  --color-300: #9EA1D1;
  --color-400: #797CB9;
  --color-500: #585C9D;
  --color-600: #494B79;
  --color-700: #383957;
  --color-800: #27283A;
  --color-900: #191A24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  tanzanite: {
    50: '#F4F4FB',
    100: '#E2E3F3',
    200: '#C6C8E6',
    300: '#9EA1D1',
    400: '#797CB9',
    500: '#585C9D',
    600: '#494B79',
    700: '#383957',
    800: '#27283A',
    900: '#191A24',
  },
}

$base: #565BB5;
$base-ink: #FFFFFF;
$base-50: #F4F4FB;
$base-100: #E2E3F3;
$base-200: #C6C8E6;
$base-300: #9EA1D1;
$base-400: #797CB9;
$base-500: #585C9D;
$base-600: #494B79;
$base-700: #383957;
$base-800: #27283A;
$base-900: #191A24;
$base-hover: #414593;
$base-subtle: #CFD0E5;

{
    "color": {
        "base": {
            "value": "#565BB5",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E3F3",
                "type": "color"
            },
            "200": {
                "value": "#C6C8E6",
                "type": "color"
            },
            "300": {
                "value": "#9EA1D1",
                "type": "color"
            },
            "400": {
                "value": "#797CB9",
                "type": "color"
            },
            "500": {
                "value": "#585C9D",
                "type": "color"
            },
            "600": {
                "value": "#494B79",
                "type": "color"
            },
            "700": {
                "value": "#383957",
                "type": "color"
            },
            "800": {
                "value": "#27283A",
                "type": "color"
            },
            "900": {
                "value": "#191A24",
                "type": "color"
            }
        }
    }
}

Palettes built on #565BB5

Color Lab

Pairs with #565BB5

UI roles & guardrails

In real applications

Scales

Every model

Export