What color is #231C4E?

#231C4E is a dark indigo. In RGB it is rgb(35, 28, 78), and in HSL hsl(248, 47%, 21%).

Is #231C4E accessible as text?

On white, #231C4E has a contrast ratio of 15.58:1 (passes WCAG AA for body text); on black it is 1.35:1 (fails). For text placed on #231C4E, use white for the best readability.

What is the closest Tailwind color to #231C4E?

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

What colors go well with #231C4E?

#231C4E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #484F1C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #231C4E below.

Is #231C4E good for buttons?

#231C4E works well for buttons and highlights, but use white text on #231C4E — black text only reaches 1.35:1, below the 4.5:1 needed for normal-size labels.

Is #231C4E the same as CSS midnightblue?

No — #231C4E is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#231C4E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #231C4E

Not just a swatch — here's how #231C4E works with other colors. Named schemes with #231C4E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #231C4E 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 #231C4E Secondary #AFB4B8 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 #231C4E Secondary #7E4533 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 #231C4E Anchor #141210 Accent #DB9757 Secondary #282833 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 #231C4E Secondary #47475A 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 #231C4E 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 25/100

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 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 76/100

High

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

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 27/100

Low

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

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #231C4E

For UI

For branding

For interior

For fashion

People also use #231C4E with

Classic Blue Russian Violet Army Green 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 15.6:1. Use

Subtle surface Use #CDC9E4 for cards and hover fills. Tint 80

Avoid beside #341C4F — 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 #231C4E 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: #231C4E;
  --color-base-rgb: 35 28 78;
  --color-base-oklch: oklch(26.7% 0.088 285.1);
  --color-50: #F4F3FB;
  --color-100: #E3E0F5;
  --color-200: #C8C3E9;
  --color-300: #A199D6;
  --color-400: #7C72C0;
  --color-500: #5C51A4;
  --color-600: #4B447E;
  --color-700: #39345A;
  --color-800: #28253C;
  --color-900: #1A1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F4F3FB',
    100: '#E3E0F5',
    200: '#C8C3E9',
    300: '#A199D6',
    400: '#7C72C0',
    500: '#5C51A4',
    600: '#4B447E',
    700: '#39345A',
    800: '#28253C',
    900: '#1A1825',
  },
}

$base: #231C4E;
$base-ink: #FFFFFF;
$base-50: #F4F3FB;
$base-100: #E3E0F5;
$base-200: #C8C3E9;
$base-300: #A199D6;
$base-400: #7C72C0;
$base-500: #5C51A4;
$base-600: #4B447E;
$base-700: #39345A;
$base-800: #28253C;
$base-900: #1A1825;
$base-hover: #1C173F;
$base-subtle: #B3ADD8;

{
    "color": {
        "base": {
            "value": "#231C4E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F3FB",
                "type": "color"
            },
            "100": {
                "value": "#E3E0F5",
                "type": "color"
            },
            "200": {
                "value": "#C8C3E9",
                "type": "color"
            },
            "300": {
                "value": "#A199D6",
                "type": "color"
            },
            "400": {
                "value": "#7C72C0",
                "type": "color"
            },
            "500": {
                "value": "#5C51A4",
                "type": "color"
            },
            "600": {
                "value": "#4B447E",
                "type": "color"
            },
            "700": {
                "value": "#39345A",
                "type": "color"
            },
            "800": {
                "value": "#28253C",
                "type": "color"
            },
            "900": {
                "value": "#1A1825",
                "type": "color"
            }
        }
    }
}