What color is #000F89?

Phthalo Blue (#000F89) is a dark, vivid blue. In RGB it is rgb(0, 15, 137), and in HSL hsl(233, 100%, 27%).

Is #000F89 accessible as text?

On white, #000F89 has a contrast ratio of 14.69:1 (passes WCAG AA for body text); on black it is 1.43:1 (fails). For text placed on #000F89, use white for the best readability.

What is the closest Tailwind color to #000F89?

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

What colors go well with #000F89?

#000F89 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A7A00. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #000F89 below.

Is Phthalo Blue good for buttons?

Phthalo Blue works well for buttons and highlights, but use white text on #000F89 — black text only reaches 1.43:1, below the 4.5:1 needed for normal-size labels.

Is Phthalo Blue a CSS named color?

No — Phthalo Blue is not a standard CSS named color; use the hex value #000F89 in CSS. The closest CSS named color is darkblue.

Phthalo Blue (#000F89) Color Palette, HEX, RGB & Design Ideas

Palettes built on Phthalo Blue

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

Luxury Packaging Feature · 5 colors

Feature #000F89 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 #000F89 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #1A41A7

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 #000F89 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 #000F89 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 #000F89 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 Phthalo Blue 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 Phthalo Blue

For UI

For branding

For interior

For fashion

People also use Phthalo Blue with

Steel 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 #BFC5F5 for cards and hover fills. Tint 80

Avoid beside #1E008A — 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 Phthalo Blue 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: #000F89;
  --color-base-rgb: 0 15 137;
  --color-base-oklch: oklch(29.7% 0.189 264.2);
  --color-50: #F0F2FE;
  --color-100: #D8DCFD;
  --color-200: #B1B9FC;
  --color-300: #7786F8;
  --color-400: #465AEC;
  --color-500: #2237D2;
  --color-600: #23319F;
  --color-700: #1F2870;
  --color-800: #181E48;
  --color-900: #11142C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F0F2FE',
    100: '#D8DCFD',
    200: '#B1B9FC',
    300: '#7786F8',
    400: '#465AEC',
    500: '#2237D2',
    600: '#23319F',
    700: '#1F2870',
    800: '#181E48',
    900: '#11142C',
  },
}

$base: #000F89;
$base-ink: #FFFFFF;
$base-50: #F0F2FE;
$base-100: #D8DCFD;
$base-200: #B1B9FC;
$base-300: #7786F8;
$base-400: #465AEC;
$base-500: #2237D2;
$base-600: #23319F;
$base-700: #1F2870;
$base-800: #181E48;
$base-900: #11142C;
$base-hover: #000D6E;
$base-subtle: #9DA7F2;

{
    "color": {
        "base": {
            "value": "#000F89",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F2FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DCFD",
                "type": "color"
            },
            "200": {
                "value": "#B1B9FC",
                "type": "color"
            },
            "300": {
                "value": "#7786F8",
                "type": "color"
            },
            "400": {
                "value": "#465AEC",
                "type": "color"
            },
            "500": {
                "value": "#2237D2",
                "type": "color"
            },
            "600": {
                "value": "#23319F",
                "type": "color"
            },
            "700": {
                "value": "#1F2870",
                "type": "color"
            },
            "800": {
                "value": "#181E48",
                "type": "color"
            },
            "900": {
                "value": "#11142C",
                "type": "color"
            }
        }
    }
}

Palettes built on Phthalo Blue

Color Lab

Pairs with Phthalo Blue

UI roles & guardrails

In real applications

Scales

Every model

Export