What color is #2B166B?

#2B166B is a dark indigo. In RGB it is rgb(43, 22, 107), and in HSL hsl(255, 66%, 25%).

Is #2B166B accessible as text?

On white, #2B166B has a contrast ratio of 14.69:1 (passes WCAG AA for body text); on black it is 1.43:1 (fails). For text placed on #2B166B, use white for the best readability.

What is the closest Tailwind color to #2B166B?

The nearest Tailwind CSS token is violet-950 (#2F0D68).

What colors go well with #2B166B?

#2B166B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #556A16. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2B166B below.

Is #2B166B good for buttons?

#2B166B works well for buttons and highlights, but use white text on #2B166B — black text only reaches 1.43:1, below the 4.5:1 needed for normal-size labels.

Is #2B166B the same as CSS midnightblue?

No — #2B166B is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#2B166B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2B166B

Not just a swatch — here's how #2B166B works with other colors. Named schemes with #2B166B in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #2B166B Anchor #141210 Accent #DB9757 Secondary #282833 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 #2B166B Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #1A0031

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 #2B166B Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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 #2B166B Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

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 #2B166B Secondary #4E4D6A 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 #2B166B 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 27/100

Cool

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

Softness 24/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 53/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 38/100

Low

Workable accent with care around contrast.

Surface fit 24/100

Low

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

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2B166B

For UI

For branding

For interior

For fashion

People also use #2B166B with

Classic Blue Indigo 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 14.7:1. Use

Subtle surface Use #D0C7EB for cards and hover fills. Tint 80

Avoid beside #47166A — 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 #2B166B 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: #2B166B;
  --color-base-rgb: 43 22 107;
  --color-base-oklch: oklch(29.3% 0.136 285.7);
  --color-50: #F5F2FD;
  --color-100: #E3DCF9;
  --color-200: #C9BBF1;
  --color-300: #A28DE2;
  --color-400: #7E62D0;
  --color-500: #5D40B5;
  --color-600: #4C388A;
  --color-700: #3A2D62;
  --color-800: #292140;
  --color-900: #1A1628;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F5F2FD',
    100: '#E3DCF9',
    200: '#C9BBF1',
    300: '#A28DE2',
    400: '#7E62D0',
    500: '#5D40B5',
    600: '#4C388A',
    700: '#3A2D62',
    800: '#292140',
    900: '#1A1628',
  },
}

$base: #2B166B;
$base-ink: #FFFFFF;
$base-50: #F5F2FD;
$base-100: #E3DCF9;
$base-200: #C9BBF1;
$base-300: #A28DE2;
$base-400: #7E62D0;
$base-500: #5D40B5;
$base-600: #4C388A;
$base-700: #3A2D62;
$base-800: #292140;
$base-900: #1A1628;
$base-hover: #221155;
$base-subtle: #B7A9E2;

{
    "color": {
        "base": {
            "value": "#2B166B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E3DCF9",
                "type": "color"
            },
            "200": {
                "value": "#C9BBF1",
                "type": "color"
            },
            "300": {
                "value": "#A28DE2",
                "type": "color"
            },
            "400": {
                "value": "#7E62D0",
                "type": "color"
            },
            "500": {
                "value": "#5D40B5",
                "type": "color"
            },
            "600": {
                "value": "#4C388A",
                "type": "color"
            },
            "700": {
                "value": "#3A2D62",
                "type": "color"
            },
            "800": {
                "value": "#292140",
                "type": "color"
            },
            "900": {
                "value": "#1A1628",
                "type": "color"
            }
        }
    }
}