What color is #1F1F42?

#1F1F42 is a dark blue-violet. In RGB it is rgb(31, 31, 66), and in HSL hsl(240, 36%, 19%).

Is #1F1F42 accessible as text?

On white, #1F1F42 has a contrast ratio of 15.75:1 (passes WCAG AA for body text); on black it is 1.33:1 (fails). For text placed on #1F1F42, use white for the best readability.

What is the closest Tailwind color to #1F1F42?

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

What colors go well with #1F1F42?

#1F1F42 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #42421F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1F1F42 below.

Is #1F1F42 good for buttons?

#1F1F42 works well for buttons and highlights, but use white text on #1F1F42 — black text only reaches 1.33:1, below the 4.5:1 needed for normal-size labels.

Is #1F1F42 the same as CSS midnightblue?

No — #1F1F42 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#1F1F42 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1F1F42

Not just a swatch — here's how #1F1F42 works with other colors. Named schemes with #1F1F42 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1F1F42 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Russian Violet opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #1F1F42 Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Russian Violet keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #1F1F42 Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582238

Russian Violet plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Luxury Packaging Feature · 5 colors

Feature #1F1F42 Anchor #141210 Accent #DB9758 Secondary #272833 Surface #F3ECE3

Russian Violet 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #1F1F42 Secondary #454654 Support #9D9088 Ink #18140F

Russian Violet 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 Russian Violet carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1F1F42 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 38/100

Cool

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

Softness 26/100

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 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 74/100

High

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

Brand distinctiveness 25/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 22/100

Low

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

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1F1F42

For UI

For branding

For interior

For fashion

People also use #1F1F42 with

Charcoal Russian Violet Taupe 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 15.8:1. Use

Subtle surface Use #CBCBE0 for cards and hover fills. Tint 80

Avoid beside #2B1F42 — 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 #1F1F42 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: #1F1F42;
  --color-base-rgb: 31 31 66;
  --color-base-oklch: oklch(26.0% 0.064 280.9);
  --color-50: #F4F4FA;
  --color-100: #E3E3F2;
  --color-200: #C8C8E5;
  --color-300: #A0A0CF;
  --color-400: #7B7BB7;
  --color-500: #5B5B9A;
  --color-600: #4A4A77;
  --color-700: #393956;
  --color-800: #282839;
  --color-900: #1A1A23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F4F4FA',
    100: '#E3E3F2',
    200: '#C8C8E5',
    300: '#A0A0CF',
    400: '#7B7BB7',
    500: '#5B5B9A',
    600: '#4A4A77',
    700: '#393956',
    800: '#282839',
    900: '#1A1A23',
  },
}

$base: #1F1F42;
$base-ink: #FFFFFF;
$base-50: #F4F4FA;
$base-100: #E3E3F2;
$base-200: #C8C8E5;
$base-300: #A0A0CF;
$base-400: #7B7BB7;
$base-500: #5B5B9A;
$base-600: #4A4A77;
$base-700: #393956;
$base-800: #282839;
$base-900: #1A1A23;
$base-hover: #191935;
$base-subtle: #B0B0D2;

{
    "color": {
        "base": {
            "value": "#1F1F42",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F4FA",
                "type": "color"
            },
            "100": {
                "value": "#E3E3F2",
                "type": "color"
            },
            "200": {
                "value": "#C8C8E5",
                "type": "color"
            },
            "300": {
                "value": "#A0A0CF",
                "type": "color"
            },
            "400": {
                "value": "#7B7BB7",
                "type": "color"
            },
            "500": {
                "value": "#5B5B9A",
                "type": "color"
            },
            "600": {
                "value": "#4A4A77",
                "type": "color"
            },
            "700": {
                "value": "#393956",
                "type": "color"
            },
            "800": {
                "value": "#282839",
                "type": "color"
            },
            "900": {
                "value": "#1A1A23",
                "type": "color"
            }
        }
    }
}