What color is #2B2188?

#2B2188 is a dark indigo. In RGB it is rgb(43, 33, 136), and in HSL hsl(246, 61%, 33%).

Is #2B2188 accessible as text?

On white, #2B2188 has a contrast ratio of 12.53:1 (passes WCAG AA for body text); on black it is 1.68:1 (fails). For text placed on #2B2188, use white for the best readability.

What is the closest Tailwind color to #2B2188?

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

What colors go well with #2B2188?

#2B2188 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7D8721. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2B2188 below.

Is #2B2188 good for buttons?

#2B2188 works well for buttons and highlights, but use white text on #2B2188 — black text only reaches 1.68:1, below the 4.5:1 needed for normal-size labels.

Is #2B2188 the same as CSS midnightblue?

No — #2B2188 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#2B2188 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2B2188

Not just a swatch — here's how #2B2188 works with other colors. Named schemes with #2B2188 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #2B2188 Anchor #141210 Accent #DC9758 Secondary #262833 Surface #F3ECE3

Midnight 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 #2B2188 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #220347

Midnight 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 Midnight Blue.

Coastal Morning Lead · 5 colors

Lead #2B2188 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #22344A

Midnight 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 #2B2188 Secondary #7F4534 Surface #EED7C2 Accent #365247 Anchor #582239

Midnight 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 #2B2188 Secondary #555B7D Support #9D9088 Ink #18140F

Midnight 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 Midnight Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #2B2188 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 18/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

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 67/100

High

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

Brand distinctiveness 62/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 52/100

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 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2B2188

For UI

For branding

For interior

For fashion

People also use #2B2188 with

Lapis Lazuli Eminence 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 12.5:1. Use

Subtle surface Use #D1CEEC for cards and hover fills. Tint 80

Avoid beside #4D2187 — 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 #2B2188 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: #2B2188;
  --color-base-rgb: 43 33 136;
  --color-base-oklch: oklch(33.9% 0.162 277.7);
  --color-50: #F3F2FC;
  --color-100: #E0DDF8;
  --color-200: #C2BDEF;
  --color-300: #9890DF;
  --color-400: #7167CB;
  --color-500: #4F45B0;
  --color-600: #433B87;
  --color-700: #342F60;
  --color-800: #25223F;
  --color-900: #181627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F3F2FC',
    100: '#E0DDF8',
    200: '#C2BDEF',
    300: '#9890DF',
    400: '#7167CB',
    500: '#4F45B0',
    600: '#433B87',
    700: '#342F60',
    800: '#25223F',
    900: '#181627',
  },
}

$base: #2B2188;
$base-ink: #FFFFFF;
$base-50: #F3F2FC;
$base-100: #E0DDF8;
$base-200: #C2BDEF;
$base-300: #9890DF;
$base-400: #7167CB;
$base-500: #4F45B0;
$base-600: #433B87;
$base-700: #342F60;
$base-800: #25223F;
$base-900: #181627;
$base-hover: #221A6C;
$base-subtle: #B9B4E4;

{
    "color": {
        "base": {
            "value": "#2B2188",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F2FC",
                "type": "color"
            },
            "100": {
                "value": "#E0DDF8",
                "type": "color"
            },
            "200": {
                "value": "#C2BDEF",
                "type": "color"
            },
            "300": {
                "value": "#9890DF",
                "type": "color"
            },
            "400": {
                "value": "#7167CB",
                "type": "color"
            },
            "500": {
                "value": "#4F45B0",
                "type": "color"
            },
            "600": {
                "value": "#433B87",
                "type": "color"
            },
            "700": {
                "value": "#342F60",
                "type": "color"
            },
            "800": {
                "value": "#25223F",
                "type": "color"
            },
            "900": {
                "value": "#181627",
                "type": "color"
            }
        }
    }
}

Palettes built on #2B2188

Color Lab

Pairs with #2B2188

UI roles & guardrails

In real applications

Scales

Every model

Export