What color is #305AA2?

#305AA2 is a medium blue. In RGB it is rgb(48, 90, 162), and in HSL hsl(218, 54%, 41%).

Is #305AA2 accessible as text?

On white, #305AA2 has a contrast ratio of 6.75:1 (passes WCAG AA for body text); on black it is 3.11:1 (fails). For text placed on #305AA2, use white for the best readability.

What is the closest Tailwind color to #305AA2?

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

What colors go well with #305AA2?

#305AA2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A17830. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #305AA2 below.

Is #305AA2 good for buttons?

#305AA2 works well for buttons and highlights, but use white text on #305AA2 — black text only reaches 3.11:1, below the 4.5:1 needed for normal-size labels.

Is #305AA2 the same as CSS darkslateblue?

No — #305AA2 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#305AA2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #305AA2

Not just a swatch — here's how #305AA2 works with other colors. Named schemes with #305AA2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #305AA2 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Tech Product Signal · 5 colors

Signal #305AA2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #577FC2

Lapis Lazuli is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lapis Lazuli.

Vintage Leather Lead · 5 colors

Lead #305AA2 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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

Berry & Cream Lead · 5 colors

Lead #305AA2 Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Lapis Lazuli 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 #305AA2 Secondary #7686A0 Support #9D8F88 Ink #16140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #305AA2 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 18/100

Cool

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

Softness 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 53/100

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 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 94/100

Very high

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

Surface fit 16/100

Very low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #305AA2

For UI

For branding

For interior

For fashion

People also use #305AA2 with

Verdigris Dark Slate Blue Copper 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 6.8:1. Use

Subtle surface Use #D5DEED for cards and hover fills. Tint 80

Avoid beside #3034A1 — 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 #305AA2 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: #305AA2;
  --color-base-rgb: 48 90 162;
  --color-base-oklch: oklch(47.6% 0.126 260.4);
  --color-50: #F3F6FC;
  --color-100: #DFE7F6;
  --color-200: #C0D0EC;
  --color-300: #95AEDA;
  --color-400: #6C8DC6;
  --color-500: #4B6EAA;
  --color-600: #3F5883;
  --color-700: #32425D;
  --color-800: #232D3D;
  --color-900: #171D26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F3F6FC',
    100: '#DFE7F6',
    200: '#C0D0EC',
    300: '#95AEDA',
    400: '#6C8DC6',
    500: '#4B6EAA',
    600: '#3F5883',
    700: '#32425D',
    800: '#232D3D',
    900: '#171D26',
  },
}

$base: #305AA2;
$base-ink: #FFFFFF;
$base-50: #F3F6FC;
$base-100: #DFE7F6;
$base-200: #C0D0EC;
$base-300: #95AEDA;
$base-400: #6C8DC6;
$base-500: #4B6EAA;
$base-600: #3F5883;
$base-700: #32425D;
$base-800: #232D3D;
$base-900: #171D26;
$base-hover: #264881;
$base-subtle: #BFCDE4;

{
    "color": {
        "base": {
            "value": "#305AA2",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F6FC",
                "type": "color"
            },
            "100": {
                "value": "#DFE7F6",
                "type": "color"
            },
            "200": {
                "value": "#C0D0EC",
                "type": "color"
            },
            "300": {
                "value": "#95AEDA",
                "type": "color"
            },
            "400": {
                "value": "#6C8DC6",
                "type": "color"
            },
            "500": {
                "value": "#4B6EAA",
                "type": "color"
            },
            "600": {
                "value": "#3F5883",
                "type": "color"
            },
            "700": {
                "value": "#32425D",
                "type": "color"
            },
            "800": {
                "value": "#232D3D",
                "type": "color"
            },
            "900": {
                "value": "#171D26",
                "type": "color"
            }
        }
    }
}

Palettes built on #305AA2

Color Lab

Pairs with #305AA2

UI roles & guardrails

In real applications

Scales

Every model

Export