What color is #171984?

#171984 is a dark, vivid blue. In RGB it is rgb(23, 25, 132), and in HSL hsl(239, 70%, 30%).

Is #171984 accessible as text?

On white, #171984 has a contrast ratio of 13.92:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #171984, use white for the best readability.

What is the closest Tailwind color to #171984?

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

What colors go well with #171984?

#171984 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #828017. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #171984 below.

Is #171984 good for buttons?

#171984 works well for buttons and highlights, but use white text on #171984 — black text only reaches 1.51:1, below the 4.5:1 needed for normal-size labels.

Is #171984 the same as CSS midnightblue?

No — #171984 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#171984 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #171984

Not just a swatch — here's how #171984 works with other colors. Named schemes with #171984 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #171984 Anchor #141210 Accent #DC9659 Secondary #252933 Surface #F3ECE3

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 #171984 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #170044

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 #171984 Accent #A5C4C2 Surface #EAD5C0 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 #171984 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

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 #171984 Secondary #495477 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 #171984 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 12/100

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 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 69/100

High

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

Brand distinctiveness 66/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 20/100

Very low

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

Print safety 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #171984

For UI

For branding

For interior

For fashion

People also use #171984 with

Lapis Lazuli Indigo Olive 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 13.9:1. Use

Subtle surface Use #C9CAED for cards and hover fills. Tint 80

Avoid beside #391782 — 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 #171984 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: #171984;
  --color-base-rgb: 23 25 132;
  --color-base-oklch: oklch(31.1% 0.170 270.2);
  --color-50: #F1F2FD;
  --color-100: #DBDCFA;
  --color-200: #BABBF3;
  --color-300: #8A8CE5;
  --color-400: #5F61D3;
  --color-500: #3D3FB8;
  --color-600: #35378C;
  --color-700: #2B2C64;
  --color-800: #202041;
  --color-900: #151528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F1F2FD',
    100: '#DBDCFA',
    200: '#BABBF3',
    300: '#8A8CE5',
    400: '#5F61D3',
    500: '#3D3FB8',
    600: '#35378C',
    700: '#2B2C64',
    800: '#202041',
    900: '#151528',
  },
}

$base: #171984;
$base-ink: #FFFFFF;
$base-50: #F1F2FD;
$base-100: #DBDCFA;
$base-200: #BABBF3;
$base-300: #8A8CE5;
$base-400: #5F61D3;
$base-500: #3D3FB8;
$base-600: #35378C;
$base-700: #2B2C64;
$base-800: #202041;
$base-900: #151528;
$base-hover: #121468;
$base-subtle: #ADAEE6;

{
    "color": {
        "base": {
            "value": "#171984",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F2FD",
                "type": "color"
            },
            "100": {
                "value": "#DBDCFA",
                "type": "color"
            },
            "200": {
                "value": "#BABBF3",
                "type": "color"
            },
            "300": {
                "value": "#8A8CE5",
                "type": "color"
            },
            "400": {
                "value": "#5F61D3",
                "type": "color"
            },
            "500": {
                "value": "#3D3FB8",
                "type": "color"
            },
            "600": {
                "value": "#35378C",
                "type": "color"
            },
            "700": {
                "value": "#2B2C64",
                "type": "color"
            },
            "800": {
                "value": "#202041",
                "type": "color"
            },
            "900": {
                "value": "#151528",
                "type": "color"
            }
        }
    }
}

Palettes built on #171984

Color Lab

Pairs with #171984

UI roles & guardrails

In real applications

Scales

Every model

Export