What color is #231B52?

#231B52 is a dark indigo. In RGB it is rgb(35, 27, 82), and in HSL hsl(249, 50%, 21%).

Is #231B52 accessible as text?

On white, #231B52 has a contrast ratio of 15.55:1 (passes WCAG AA for body text); on black it is 1.35:1 (fails). For text placed on #231B52, use white for the best readability.

What is the closest Tailwind color to #231B52?

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

What colors go well with #231B52?

#231B52 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #48501B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #231B52 below.

Is #231B52 good for buttons?

#231B52 works well for buttons and highlights, but use white text on #231B52 — black text only reaches 1.35:1, below the 4.5:1 needed for normal-size labels.

Is #231B52 the same as CSS midnightblue?

No — #231B52 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#231B52 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #231B52

Not just a swatch — here's how #231B52 works with other colors. Named schemes with #231B52 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #231B52 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.

Moody Editorial Color · 5 colors

Color #231B52 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #110221

Russian Violet 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 Russian Violet.

Coastal Morning Lead · 5 colors

Lead #231B52 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.

Vintage Leather Lead · 5 colors

Lead #231B52 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #231B52 Secondary #48485C 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 #231B52 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 33/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 38/100

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 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 28/100

Low

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

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #231B52

For UI

For branding

For interior

For fashion

People also use #231B52 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 #CDC8E5 for cards and hover fills. Tint 80

Avoid beside #351B50 — 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 #231B52 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: #231B52;
  --color-base-rgb: 35 27 82;
  --color-base-oklch: oklch(26.8% 0.096 284.5);
  --color-50: #F4F3FC;
  --color-100: #E3E0F5;
  --color-200: #C8C2EB;
  --color-300: #A197D8;
  --color-400: #7C70C2;
  --color-500: #5C4EA6;
  --color-600: #4B4280;
  --color-700: #39335C;
  --color-800: #28243C;
  --color-900: #1A1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F4F3FC',
    100: '#E3E0F5',
    200: '#C8C2EB',
    300: '#A197D8',
    400: '#7C70C2',
    500: '#5C4EA6',
    600: '#4B4280',
    700: '#39335C',
    800: '#28243C',
    900: '#1A1825',
  },
}

$base: #231B52;
$base-ink: #FFFFFF;
$base-50: #F4F3FC;
$base-100: #E3E0F5;
$base-200: #C8C2EB;
$base-300: #A197D8;
$base-400: #7C70C2;
$base-500: #5C4EA6;
$base-600: #4B4280;
$base-700: #39335C;
$base-800: #28243C;
$base-900: #1A1825;
$base-hover: #1C1540;
$base-subtle: #B2ACDA;

{
    "color": {
        "base": {
            "value": "#231B52",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E3E0F5",
                "type": "color"
            },
            "200": {
                "value": "#C8C2EB",
                "type": "color"
            },
            "300": {
                "value": "#A197D8",
                "type": "color"
            },
            "400": {
                "value": "#7C70C2",
                "type": "color"
            },
            "500": {
                "value": "#5C4EA6",
                "type": "color"
            },
            "600": {
                "value": "#4B4280",
                "type": "color"
            },
            "700": {
                "value": "#39335C",
                "type": "color"
            },
            "800": {
                "value": "#28243C",
                "type": "color"
            },
            "900": {
                "value": "#1A1825",
                "type": "color"
            }
        }
    }
}