What color is #1D1B98?

#1D1B98 is a dark, vivid blue. In RGB it is rgb(29, 27, 152), and in HSL hsl(241, 70%, 35%).

Is #1D1B98 accessible as text?

On white, #1D1B98 has a contrast ratio of 12.63:1 (passes WCAG AA for body text); on black it is 1.66:1 (fails). For text placed on #1D1B98, use white for the best readability.

What is the closest Tailwind color to #1D1B98?

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

What colors go well with #1D1B98?

#1D1B98 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #96981B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1D1B98 below.

Is #1D1B98 good for buttons?

#1D1B98 works well for buttons and highlights, but use white text on #1D1B98 — black text only reaches 1.66:1, below the 4.5:1 needed for normal-size labels.

Is #1D1B98 the same as CSS darkblue?

No — #1D1B98 is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#1D1B98 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1D1B98

Not just a swatch — here's how #1D1B98 works with other colors. Named schemes with #1D1B98 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #1D1B98 Anchor #141210 Accent #DC9659 Secondary #252833 Surface #F3ECE3

Zaffre 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 #1D1B98 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #374AB6

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

Moody Editorial Color · 5 colors

Color #1D1B98 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1F0053

Zaffre 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 Zaffre.

Coastal Morning Lead · 5 colors

Lead #1D1B98 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Zaffre 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 #1D1B98 Secondary #4F5C84 Support #9D8F88 Ink #18140F

Zaffre 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 Zaffre carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1D1B98 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 70/100

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 20/100

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 74/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 18/100

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 #1D1B98

For UI

For branding

For interior

For fashion

People also use #1D1B98 with

True Blue Rebecca Purple Citron 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 12.6:1. Use

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

Avoid beside #471B98 — 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 #1D1B98 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: #1D1B98;
  --color-base-rgb: 29 27 152;
  --color-base-oklch: oklch(34.1% 0.191 270.8);
  --color-50: #F2F1FD;
  --color-100: #DCDBFA;
  --color-200: #BBBAF3;
  --color-300: #8C8AE5;
  --color-400: #615FD3;
  --color-500: #3F3DB8;
  --color-600: #37358C;
  --color-700: #2C2B64;
  --color-800: #202041;
  --color-900: #151528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  zaffre: {
    50: '#F2F1FD',
    100: '#DCDBFA',
    200: '#BBBAF3',
    300: '#8C8AE5',
    400: '#615FD3',
    500: '#3F3DB8',
    600: '#37358C',
    700: '#2C2B64',
    800: '#202041',
    900: '#151528',
  },
}

$base: #1D1B98;
$base-ink: #FFFFFF;
$base-50: #F2F1FD;
$base-100: #DCDBFA;
$base-200: #BBBAF3;
$base-300: #8C8AE5;
$base-400: #615FD3;
$base-500: #3F3DB8;
$base-600: #37358C;
$base-700: #2C2B64;
$base-800: #202041;
$base-900: #151528;
$base-hover: #171579;
$base-subtle: #B4B3E8;

{
    "color": {
        "base": {
            "value": "#1D1B98",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F1FD",
                "type": "color"
            },
            "100": {
                "value": "#DCDBFA",
                "type": "color"
            },
            "200": {
                "value": "#BBBAF3",
                "type": "color"
            },
            "300": {
                "value": "#8C8AE5",
                "type": "color"
            },
            "400": {
                "value": "#615FD3",
                "type": "color"
            },
            "500": {
                "value": "#3F3DB8",
                "type": "color"
            },
            "600": {
                "value": "#37358C",
                "type": "color"
            },
            "700": {
                "value": "#2C2B64",
                "type": "color"
            },
            "800": {
                "value": "#202041",
                "type": "color"
            },
            "900": {
                "value": "#151528",
                "type": "color"
            }
        }
    }
}

Palettes built on #1D1B98

Color Lab

Pairs with #1D1B98

UI roles & guardrails

In real applications

Scales

Every model

Export