What color is #30188E?

#30188E is a dark, vivid indigo. In RGB it is rgb(48, 24, 142), and in HSL hsl(252, 71%, 33%).

Is #30188E accessible as text?

On white, #30188E has a contrast ratio of 12.75:1 (passes WCAG AA for body text); on black it is 1.65:1 (fails). For text placed on #30188E, use white for the best readability.

What is the closest Tailwind color to #30188E?

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

What colors go well with #30188E?

#30188E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #789018. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #30188E below.

Is #30188E good for buttons?

#30188E works well for buttons and highlights, but use white text on #30188E — black text only reaches 1.65:1, below the 4.5:1 needed for normal-size labels.

Is #30188E the same as CSS midnightblue?

No — #30188E is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#30188E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #30188E

Not just a swatch — here's how #30188E works with other colors. Named schemes with #30188E in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #30188E Anchor #141210 Accent #DB9758 Secondary #272833 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 #30188E Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #24004A

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 #30188E 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 #30188E Secondary #7F4534 Surface #EDD7C2 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 #30188E Secondary #575980 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.

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Color Lab

How #30188E 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 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 66/100

High

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

Brand distinctiveness 68/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 50/100

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 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #30188E

For UI

For branding

For interior

For fashion

People also use #30188E with

Sapphire Blue Purple Olive Drab 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 12.8:1. Use

Subtle surface Use #D2CBEE for cards and hover fills. Tint 80

Avoid beside #581890 — 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 #30188E 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: #30188E;
  --color-base-rgb: 48 24 142;
  --color-base-oklch: oklch(33.9% 0.177 280.6);
  --color-50: #F4F1FD;
  --color-100: #E1DBFA;
  --color-200: #C5B9F3;
  --color-300: #9C8AE5;
  --color-400: #765ED4;
  --color-500: #553CB9;
  --color-600: #46358D;
  --color-700: #362B64;
  --color-800: #261F42;
  --color-900: #191528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F4F1FD',
    100: '#E1DBFA',
    200: '#C5B9F3',
    300: '#9C8AE5',
    400: '#765ED4',
    500: '#553CB9',
    600: '#46358D',
    700: '#362B64',
    800: '#261F42',
    900: '#191528',
  },
}

$base: #30188E;
$base-ink: #FFFFFF;
$base-50: #F4F1FD;
$base-100: #E1DBFA;
$base-200: #C5B9F3;
$base-300: #9C8AE5;
$base-400: #765ED4;
$base-500: #553CB9;
$base-600: #46358D;
$base-700: #362B64;
$base-800: #261F42;
$base-900: #191528;
$base-hover: #271473;
$base-subtle: #BBB0E7;

{
    "color": {
        "base": {
            "value": "#30188E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F1FD",
                "type": "color"
            },
            "100": {
                "value": "#E1DBFA",
                "type": "color"
            },
            "200": {
                "value": "#C5B9F3",
                "type": "color"
            },
            "300": {
                "value": "#9C8AE5",
                "type": "color"
            },
            "400": {
                "value": "#765ED4",
                "type": "color"
            },
            "500": {
                "value": "#553CB9",
                "type": "color"
            },
            "600": {
                "value": "#46358D",
                "type": "color"
            },
            "700": {
                "value": "#362B64",
                "type": "color"
            },
            "800": {
                "value": "#261F42",
                "type": "color"
            },
            "900": {
                "value": "#191528",
                "type": "color"
            }
        }
    }
}

Palettes built on #30188E

Color Lab

Pairs with #30188E

UI roles & guardrails

In real applications

Scales

Every model

Export