What color is #210573?

#210573 is a dark, vivid indigo. In RGB it is rgb(33, 5, 115), and in HSL hsl(255, 92%, 24%).

Is #210573 accessible as text?

On white, #210573 has a contrast ratio of 15.74:1 (passes WCAG AA for body text); on black it is 1.33:1 (fails). For text placed on #210573, use white for the best readability.

What is the closest Tailwind color to #210573?

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

What colors go well with #210573?

#210573 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #597605. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #210573 below.

Is #210573 good for buttons?

#210573 works well for buttons and highlights, but use white text on #210573 — black text only reaches 1.33:1, below the 4.5:1 needed for normal-size labels.

Is #210573 the same as CSS midnightblue?

No — #210573 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#210573 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #210573

Not just a swatch — here's how #210573 works with other colors. Named schemes with #210573 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #210573 Anchor #141210 Accent #DC9758 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 #210573 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #150035

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 #210573 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 #210573 Secondary #7F4534 Surface #EDD7C2 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 #210573 Secondary #45496A 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 #210573 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 19/100

Cool

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

Softness 21/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

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 72/100

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 32/100

Low

Workable accent with care around contrast.

Surface fit 22/100

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 #210573

For UI

For branding

For interior

For fashion

People also use #210573 with

Egyptian 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 15.7:1. Use

Subtle surface Use #CBBFF2 for cards and hover fills. Tint 80

Avoid beside #470576 — 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 #210573 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #210573;
  --color-base-rgb: 33 5 115;
  --color-base-oklch: oklch(27.6% 0.161 279.2);
  --color-50: #F4F0FE;
  --color-100: #E1D8FD;
  --color-200: #C4B1FC;
  --color-300: #9A7CF3;
  --color-400: #734DE5;
  --color-500: #5229CB;
  --color-600: #44289A;
  --color-700: #35226D;
  --color-800: #251A47;
  --color-900: #18122B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F4F0FE',
    100: '#E1D8FD',
    200: '#C4B1FC',
    300: '#9A7CF3',
    400: '#734DE5',
    500: '#5229CB',
    600: '#44289A',
    700: '#35226D',
    800: '#251A47',
    900: '#18122B',
  },
}

$base: #210573;
$base-ink: #FFFFFF;
$base-50: #F4F0FE;
$base-100: #E1D8FD;
$base-200: #C4B1FC;
$base-300: #9A7CF3;
$base-400: #734DE5;
$base-500: #5229CB;
$base-600: #44289A;
$base-700: #35226D;
$base-800: #251A47;
$base-900: #18122B;
$base-hover: #1A045E;
$base-subtle: #B19CEE;

{
    "color": {
        "base": {
            "value": "#210573",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F0FE",
                "type": "color"
            },
            "100": {
                "value": "#E1D8FD",
                "type": "color"
            },
            "200": {
                "value": "#C4B1FC",
                "type": "color"
            },
            "300": {
                "value": "#9A7CF3",
                "type": "color"
            },
            "400": {
                "value": "#734DE5",
                "type": "color"
            },
            "500": {
                "value": "#5229CB",
                "type": "color"
            },
            "600": {
                "value": "#44289A",
                "type": "color"
            },
            "700": {
                "value": "#35226D",
                "type": "color"
            },
            "800": {
                "value": "#251A47",
                "type": "color"
            },
            "900": {
                "value": "#18122B",
                "type": "color"
            }
        }
    }
}

Palettes built on #210573

Color Lab

Pairs with #210573

UI roles & guardrails

In real applications

Scales

Every model

Export