What color is #010F89?

#010F89 is a dark, vivid blue. In RGB it is rgb(1, 15, 137), and in HSL hsl(234, 99%, 27%).

Is #010F89 accessible as text?

On white, #010F89 has a contrast ratio of 14.68:1 (passes WCAG AA for body text); on black it is 1.43:1 (fails). For text placed on #010F89, use white for the best readability.

What is the closest Tailwind color to #010F89?

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

What colors go well with #010F89?

#010F89 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #897B01. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #010F89 below.

Is #010F89 good for buttons?

#010F89 works well for buttons and highlights, but use white text on #010F89 — black text only reaches 1.43:1, below the 4.5:1 needed for normal-size labels.

Is #010F89 the same as CSS darkblue?

No — #010F89 is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#010F89 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #010F89

Not just a swatch — here's how #010F89 works with other colors. Named schemes with #010F89 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #010F89 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.

Tech Product Signal · 5 colors

Signal #010F89 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #1B41A7

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 #010F89 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #120047

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 #010F89 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 #010F89 Secondary #3F5177 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 #010F89 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 21/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

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 68/100

High

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

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 36/100

Low

Workable accent with care around contrast.

Surface fit 21/100

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 #010F89

For UI

For branding

For interior

For fashion

People also use #010F89 with

True Blue Indigo Dark Olive Green 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 14.7:1. Use

Subtle surface Use #BFC5F4 for cards and hover fills. Tint 80

Avoid beside #200189 — 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 #010F89 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: #010F89;
  --color-base-rgb: 1 15 137;
  --color-base-oklch: oklch(29.7% 0.189 264.4);
  --color-50: #F0F2FE;
  --color-100: #D8DCFD;
  --color-200: #B1B8FC;
  --color-300: #7884F7;
  --color-400: #4757EB;
  --color-500: #2335D2;
  --color-600: #23309F;
  --color-700: #1F276F;
  --color-800: #191D48;
  --color-900: #11142C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F0F2FE',
    100: '#D8DCFD',
    200: '#B1B8FC',
    300: '#7884F7',
    400: '#4757EB',
    500: '#2335D2',
    600: '#23309F',
    700: '#1F276F',
    800: '#191D48',
    900: '#11142C',
  },
}

$base: #010F89;
$base-ink: #FFFFFF;
$base-50: #F0F2FE;
$base-100: #D8DCFD;
$base-200: #B1B8FC;
$base-300: #7884F7;
$base-400: #4757EB;
$base-500: #2335D2;
$base-600: #23309F;
$base-700: #1F276F;
$base-800: #191D48;
$base-900: #11142C;
$base-hover: #010B6E;
$base-subtle: #9DA6F1;

{
    "color": {
        "base": {
            "value": "#010F89",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F2FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DCFD",
                "type": "color"
            },
            "200": {
                "value": "#B1B8FC",
                "type": "color"
            },
            "300": {
                "value": "#7884F7",
                "type": "color"
            },
            "400": {
                "value": "#4757EB",
                "type": "color"
            },
            "500": {
                "value": "#2335D2",
                "type": "color"
            },
            "600": {
                "value": "#23309F",
                "type": "color"
            },
            "700": {
                "value": "#1F276F",
                "type": "color"
            },
            "800": {
                "value": "#191D48",
                "type": "color"
            },
            "900": {
                "value": "#11142C",
                "type": "color"
            }
        }
    }
}

Palettes built on #010F89

Color Lab

Pairs with #010F89

UI roles & guardrails

In real applications

Scales

Every model

Export