What color is #2C5AAA?

#2C5AAA is a medium blue. In RGB it is rgb(44, 90, 170), and in HSL hsl(218, 59%, 42%).

Is #2C5AAA accessible as text?

On white, #2C5AAA has a contrast ratio of 6.67:1 (passes WCAG AA for body text); on black it is 3.15:1 (fails). For text placed on #2C5AAA, use white for the best readability.

What is the closest Tailwind color to #2C5AAA?

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

What colors go well with #2C5AAA?

#2C5AAA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AA7C2C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2C5AAA below.

Is #2C5AAA good for buttons?

#2C5AAA works well for buttons and highlights, but use white text on #2C5AAA — black text only reaches 3.15:1, below the 4.5:1 needed for normal-size labels.

Is #2C5AAA the same as CSS darkslateblue?

No — #2C5AAA is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#2C5AAA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2C5AAA

Not just a swatch — here's how #2C5AAA works with other colors. Named schemes with #2C5AAA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2C5AAA 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 #2C5AAA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #547FCA

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 #2C5AAA 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 #2C5AAA 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 #2C5AAA Secondary #7687A4 Support #9D8F88 Ink #18140F

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 #2C5AAA 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 15/100

Cool

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

Softness 37/100

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 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 57/100

Moderate

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

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 96/100

Very high

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

Surface fit 12/100

Very low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2C5AAA

For UI

For branding

For interior

For fashion

People also use #2C5AAA with

Robin Egg Blue 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 6.7:1. Use

Subtle surface Use #D5DEEE for cards and hover fills. Tint 80

Avoid beside #2C30AA — 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 #2C5AAA 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: #2C5AAA;
  --color-base-rgb: 44 90 170;
  --color-base-oklch: oklch(48.0% 0.138 260.6);
  --color-50: #F2F6FC;
  --color-100: #DEE7F7;
  --color-200: #BED0EE;
  --color-300: #92ADDE;
  --color-400: #688CCA;
  --color-500: #466DAE;
  --color-600: #3C5786;
  --color-700: #30415F;
  --color-800: #222D3F;
  --color-900: #171C27;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F2F6FC',
    100: '#DEE7F7',
    200: '#BED0EE',
    300: '#92ADDE',
    400: '#688CCA',
    500: '#466DAE',
    600: '#3C5786',
    700: '#30415F',
    800: '#222D3F',
    900: '#171C27',
  },
}

$base: #2C5AAA;
$base-ink: #FFFFFF;
$base-50: #F2F6FC;
$base-100: #DEE7F7;
$base-200: #BED0EE;
$base-300: #92ADDE;
$base-400: #688CCA;
$base-500: #466DAE;
$base-600: #3C5786;
$base-700: #30415F;
$base-800: #222D3F;
$base-900: #171C27;
$base-hover: #234888;
$base-subtle: #BFCDE7;

{
    "color": {
        "base": {
            "value": "#2C5AAA",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F6FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE7F7",
                "type": "color"
            },
            "200": {
                "value": "#BED0EE",
                "type": "color"
            },
            "300": {
                "value": "#92ADDE",
                "type": "color"
            },
            "400": {
                "value": "#688CCA",
                "type": "color"
            },
            "500": {
                "value": "#466DAE",
                "type": "color"
            },
            "600": {
                "value": "#3C5786",
                "type": "color"
            },
            "700": {
                "value": "#30415F",
                "type": "color"
            },
            "800": {
                "value": "#222D3F",
                "type": "color"
            },
            "900": {
                "value": "#171C27",
                "type": "color"
            }
        }
    }
}

Palettes built on #2C5AAA

Color Lab

Pairs with #2C5AAA

UI roles & guardrails

In real applications

Scales

Every model

Export