What color is #100B4F?

#100B4F is a dark, vivid blue-violet. In RGB it is rgb(16, 11, 79), and in HSL hsl(244, 76%, 18%).

Is #100B4F accessible as text?

On white, #100B4F has a contrast ratio of 17.75:1 (passes WCAG AA for body text); on black it is 1.18:1 (fails). For text placed on #100B4F, use white for the best readability.

What is the closest Tailwind color to #100B4F?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #100B4F?

#100B4F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4C510B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #100B4F below.

Is #100B4F good for buttons?

#100B4F works well for buttons and highlights, but use white text on #100B4F — black text only reaches 1.18:1, below the 4.5:1 needed for normal-size labels.

Is #100B4F the same as CSS midnightblue?

No — #100B4F is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#100B4F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #100B4F

Not just a swatch — here's how #100B4F works with other colors. Named schemes with #100B4F in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #100B4F Anchor #141210 Accent #DC9659 Secondary #262833 Surface #F3ECE3

Navy 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 #100B4F Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #06001D

Navy 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 Navy.

Coastal Morning Lead · 5 colors

Lead #100B4F Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Navy 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 #100B4F Secondary #7F4535 Surface #EED7C2 Accent #365247 Anchor #582239

Navy 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 #100B4F Secondary #373C53 Support #9D9088 Ink #18140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #100B4F 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 25/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 20/100

Very low

Firm and assertive — carries weight and contrast.

Depth 79/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 81/100

Very high

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

Brand distinctiveness 45/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 19/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #100B4F

For UI

For branding

For interior

For fashion

People also use #100B4F with

Classic Blue Russian Violet Army 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 17.8:1. Use

Subtle surface Use #C1BEEC for cards and hover fills. Tint 80

Avoid beside #270B51 — 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 #100B4F 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: #100B4F;
  --color-base-rgb: 16 11 79;
  --color-base-oklch: oklch(22.1% 0.116 274.5);
  --color-50: #F2F1FE;
  --color-100: #DCDAFB;
  --color-200: #BBB7F5;
  --color-300: #8D87E9;
  --color-400: #625AD8;
  --color-500: #4037BD;
  --color-600: #383290;
  --color-700: #2D2966;
  --color-800: #211E43;
  --color-900: #161429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F2F1FE',
    100: '#DCDAFB',
    200: '#BBB7F5',
    300: '#8D87E9',
    400: '#625AD8',
    500: '#4037BD',
    600: '#383290',
    700: '#2D2966',
    800: '#211E43',
    900: '#161429',
  },
}

$base: #100B4F;
$base-ink: #FFFFFF;
$base-50: #F2F1FE;
$base-100: #DCDAFB;
$base-200: #BBB7F5;
$base-300: #8D87E9;
$base-400: #625AD8;
$base-500: #4037BD;
$base-600: #383290;
$base-700: #2D2966;
$base-800: #211E43;
$base-900: #161429;
$base-hover: #0D0941;
$base-subtle: #A19CE5;

{
    "color": {
        "base": {
            "value": "#100B4F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F1FE",
                "type": "color"
            },
            "100": {
                "value": "#DCDAFB",
                "type": "color"
            },
            "200": {
                "value": "#BBB7F5",
                "type": "color"
            },
            "300": {
                "value": "#8D87E9",
                "type": "color"
            },
            "400": {
                "value": "#625AD8",
                "type": "color"
            },
            "500": {
                "value": "#4037BD",
                "type": "color"
            },
            "600": {
                "value": "#383290",
                "type": "color"
            },
            "700": {
                "value": "#2D2966",
                "type": "color"
            },
            "800": {
                "value": "#211E43",
                "type": "color"
            },
            "900": {
                "value": "#161429",
                "type": "color"
            }
        }
    }
}

Palettes built on #100B4F

Color Lab

Pairs with #100B4F

UI roles & guardrails

In real applications

Scales

Every model

Export