What color is #031E89?

#031E89 is a dark, vivid blue. In RGB it is rgb(3, 30, 137), and in HSL hsl(228, 96%, 27%).

Is #031E89 accessible as text?

On white, #031E89 has a contrast ratio of 13.54:1 (passes WCAG AA for body text); on black it is 1.55:1 (fails). For text placed on #031E89, use white for the best readability.

What is the closest Tailwind color to #031E89?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #031E89?

#031E89 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #876D03. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #031E89 below.

Is #031E89 good for buttons?

#031E89 works well for buttons and highlights, but use white text on #031E89 — black text only reaches 1.55:1, below the 4.5:1 needed for normal-size labels.

Is #031E89 the same as CSS darkblue?

No — #031E89 is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#031E89 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #031E89

Not just a swatch — here's how #031E89 works with other colors. Named schemes with #031E89 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #031E89 Anchor #141210 Accent #ACAE53 Secondary #242933 Surface #F0EEE3

Phthalo Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #031E89 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #140049

Phthalo Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Phthalo Blue.

Coastal Morning Lead · 5 colors

Lead #031E89 Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Phthalo Blue 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 #031E89 Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #57223A

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #031E89 Secondary #46577A Support #9D8F88 Ink #18140F

Phthalo 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 Phthalo Blue carrying the quiet middle.

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Color Lab

How #031E89 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 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 72/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 22/100

Low

Clean and current — no dusty, aged cast.

Luxury 68/100

High

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

Brand distinctiveness 68/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 19/100

Very low

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

Print safety 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #031E89

For UI

For branding

For interior

For fashion

People also use #031E89 with

Steel Blue Indigo Dark Olive Green Gainsboro Gunmetal Gray

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 13.5:1. Use

Subtle surface Use #C0CAF4 for cards and hover fills. Tint 80

Avoid beside #140387 — 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 #031E89 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: #031E89;
  --color-base-rgb: 3 30 137;
  --color-base-oklch: oklch(31.7% 0.176 264.4);
  --color-50: #F0F3FE;
  --color-100: #D8DFFD;
  --color-200: #B1C0FC;
  --color-300: #7A92F6;
  --color-400: #4A69E8;
  --color-500: #2648CF;
  --color-600: #253D9D;
  --color-700: #21306E;
  --color-800: #192348;
  --color-900: #12172C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F0F3FE',
    100: '#D8DFFD',
    200: '#B1C0FC',
    300: '#7A92F6',
    400: '#4A69E8',
    500: '#2648CF',
    600: '#253D9D',
    700: '#21306E',
    800: '#192348',
    900: '#12172C',
  },
}

$base: #031E89;
$base-ink: #FFFFFF;
$base-50: #F0F3FE;
$base-100: #D8DFFD;
$base-200: #B1C0FC;
$base-300: #7A92F6;
$base-400: #4A69E8;
$base-500: #2648CF;
$base-600: #253D9D;
$base-700: #21306E;
$base-800: #192348;
$base-900: #12172C;
$base-hover: #02176C;
$base-subtle: #9EAFF0;

{
    "color": {
        "base": {
            "value": "#031E89",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F3FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DFFD",
                "type": "color"
            },
            "200": {
                "value": "#B1C0FC",
                "type": "color"
            },
            "300": {
                "value": "#7A92F6",
                "type": "color"
            },
            "400": {
                "value": "#4A69E8",
                "type": "color"
            },
            "500": {
                "value": "#2648CF",
                "type": "color"
            },
            "600": {
                "value": "#253D9D",
                "type": "color"
            },
            "700": {
                "value": "#21306E",
                "type": "color"
            },
            "800": {
                "value": "#192348",
                "type": "color"
            },
            "900": {
                "value": "#12172C",
                "type": "color"
            }
        }
    }
}

Palettes built on #031E89

Color Lab

Pairs with #031E89

UI roles & guardrails

In real applications

Scales

Every model

Export