What color is #031B95?

#031B95 is a dark, vivid blue. In RGB it is rgb(3, 27, 149), and in HSL hsl(230, 96%, 30%).

Is #031B95 accessible as text?

On white, #031B95 has a contrast ratio of 13.17:1 (passes WCAG AA for body text); on black it is 1.59:1 (fails). For text placed on #031B95, use white for the best readability.

What is the closest Tailwind color to #031B95?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #031B95?

#031B95 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #967D03. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #031B95 below.

Is #031B95 good for buttons?

#031B95 works well for buttons and highlights, but use white text on #031B95 — black text only reaches 1.59:1, below the 4.5:1 needed for normal-size labels.

Is #031B95 the same as CSS darkblue?

No — #031B95 is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#031B95 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #031B95

Not just a swatch — here's how #031B95 works with other colors. Named schemes with #031B95 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #031B95 Anchor #141210 Accent #ACAE53 Secondary #242933 Surface #F4ECE3

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.

Tech Product Signal · 5 colors

Signal #031B95 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #2249B3

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

Moody Editorial Color · 5 colors

Color #031B95 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #170052

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 #031B95 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #031B95 Secondary #475980 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.

Build a working theme in the generator →

Color Lab

How #031B95 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 22/100

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 18/100

Very low

Clean and current — no dusty, aged cast.

Luxury 65/100

High

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

Brand distinctiveness 75/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 44/100

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 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #031B95

For UI

For branding

For interior

For fashion

People also use #031B95 with

Bondi Blue Indigo Olive Brown Gainsboro Prussian Blue

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 13.2:1. Use

Subtle surface Use #C3CBF4 for cards and hover fills. Tint 80

Avoid beside #1C0396 — 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 #031B95 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: #031B95;
  --color-base-rgb: 3 27 149;
  --color-base-oklch: oklch(32.8% 0.193 264.6);
  --color-50: #F0F3FE;
  --color-100: #D8DEFD;
  --color-200: #B1BDFC;
  --color-300: #7A8EF6;
  --color-400: #4A64E8;
  --color-500: #2642CF;
  --color-600: #25399D;
  --color-700: #212E6E;
  --color-800: #192148;
  --color-900: #12162C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F0F3FE',
    100: '#D8DEFD',
    200: '#B1BDFC',
    300: '#7A8EF6',
    400: '#4A64E8',
    500: '#2642CF',
    600: '#25399D',
    700: '#212E6E',
    800: '#192148',
    900: '#12162C',
  },
}

$base: #031B95;
$base-ink: #FFFFFF;
$base-50: #F0F3FE;
$base-100: #D8DEFD;
$base-200: #B1BDFC;
$base-300: #7A8EF6;
$base-400: #4A64E8;
$base-500: #2642CF;
$base-600: #25399D;
$base-700: #212E6E;
$base-800: #192148;
$base-900: #12162C;
$base-hover: #021678;
$base-subtle: #A2AFF1;

{
    "color": {
        "base": {
            "value": "#031B95",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F3FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DEFD",
                "type": "color"
            },
            "200": {
                "value": "#B1BDFC",
                "type": "color"
            },
            "300": {
                "value": "#7A8EF6",
                "type": "color"
            },
            "400": {
                "value": "#4A64E8",
                "type": "color"
            },
            "500": {
                "value": "#2642CF",
                "type": "color"
            },
            "600": {
                "value": "#25399D",
                "type": "color"
            },
            "700": {
                "value": "#212E6E",
                "type": "color"
            },
            "800": {
                "value": "#192148",
                "type": "color"
            },
            "900": {
                "value": "#12162C",
                "type": "color"
            }
        }
    }
}

Palettes built on #031B95

Color Lab

Pairs with #031B95

UI roles & guardrails

In real applications

Scales

Every model

Export