What color is #3F286F?

#3F286F is a dark indigo. In RGB it is rgb(63, 40, 111), and in HSL hsl(259, 47%, 30%).

Is #3F286F accessible as text?

On white, #3F286F has a contrast ratio of 12.04:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #3F286F, use white for the best readability.

What is the closest Tailwind color to #3F286F?

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

What colors go well with #3F286F?

#3F286F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5A7029. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3F286F below.

Is #3F286F good for buttons?

#3F286F works well for buttons and highlights, but use white text on #3F286F — black text only reaches 1.74:1, below the 4.5:1 needed for normal-size labels.

Is #3F286F the same as CSS indigo?

No — #3F286F is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#3F286F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3F286F

Not just a swatch — here's how #3F286F works with other colors. Named schemes with #3F286F in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #3F286F Anchor #141210 Accent #DA9856 Secondary #292732 Surface #F3ECE3

Indigo 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 #3F286F Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #290C37

Indigo 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 Indigo.

Coastal Morning Lead · 5 colors

Lead #3F286F Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334A

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

Berry & Cream Lead · 5 colors

Lead #3F286F Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

Indigo sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #3F286F Secondary #605B75 Support #9D9088 Ink #18140F

Indigo 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 Indigo carrying the quiet middle.

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Color Lab

How #3F286F 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 35/100

Cool

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

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

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 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 71/100

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 54/100

Moderate

Workable accent with care around contrast.

Surface fit 27/100

Low

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

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3F286F

For UI

For branding

For interior

For fashion

People also use #3F286F with

Classic Blue Byzantium Dark Olive Green Gainsboro Russian Violet

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 12.0:1. Use

Subtle surface Use #D7CFE7 for cards and hover fills. Tint 80

Avoid beside #572970 — 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 #3F286F 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: #3F286F;
  --color-base-rgb: 63 40 111;
  --color-base-oklch: oklch(34.6% 0.117 294.4);
  --color-50: #F6F3FB;
  --color-100: #E7E0F5;
  --color-200: #CFC3E9;
  --color-300: #AC99D6;
  --color-400: #8B72C0;
  --color-500: #6B51A4;
  --color-600: #56447E;
  --color-700: #40345A;
  --color-800: #2C253C;
  --color-900: #1C1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F6F3FB',
    100: '#E7E0F5',
    200: '#CFC3E9',
    300: '#AC99D6',
    400: '#8B72C0',
    500: '#6B51A4',
    600: '#56447E',
    700: '#40345A',
    800: '#2C253C',
    900: '#1C1825',
  },
}

$base: #3F286F;
$base-ink: #FFFFFF;
$base-50: #F6F3FB;
$base-100: #E7E0F5;
$base-200: #CFC3E9;
$base-300: #AC99D6;
$base-400: #8B72C0;
$base-500: #6B51A4;
$base-600: #56447E;
$base-700: #40345A;
$base-800: #2C253C;
$base-900: #1C1825;
$base-hover: #33205A;
$base-subtle: #C2B6DD;

{
    "color": {
        "base": {
            "value": "#3F286F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F3FB",
                "type": "color"
            },
            "100": {
                "value": "#E7E0F5",
                "type": "color"
            },
            "200": {
                "value": "#CFC3E9",
                "type": "color"
            },
            "300": {
                "value": "#AC99D6",
                "type": "color"
            },
            "400": {
                "value": "#8B72C0",
                "type": "color"
            },
            "500": {
                "value": "#6B51A4",
                "type": "color"
            },
            "600": {
                "value": "#56447E",
                "type": "color"
            },
            "700": {
                "value": "#40345A",
                "type": "color"
            },
            "800": {
                "value": "#2C253C",
                "type": "color"
            },
            "900": {
                "value": "#1C1825",
                "type": "color"
            }
        }
    }
}

Palettes built on #3F286F

Color Lab

Pairs with #3F286F

UI roles & guardrails

In real applications

Scales

Every model

Export