What color is #212657?

#212657 is a dark blue-violet. In RGB it is rgb(33, 38, 87), and in HSL hsl(234, 45%, 24%).

Is #212657 accessible as text?

On white, #212657 has a contrast ratio of 14.19:1 (passes WCAG AA for body text); on black it is 1.48:1 (fails). For text placed on #212657, use white for the best readability.

What is the closest Tailwind color to #212657?

The nearest Tailwind CSS token is blue-950 (#162456).

What colors go well with #212657?

#212657 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #595322. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #212657 below.

Is #212657 good for buttons?

#212657 works well for buttons and highlights, but use white text on #212657 — black text only reaches 1.48:1, below the 4.5:1 needed for normal-size labels.

Is #212657 the same as CSS midnightblue?

No — #212657 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#212657 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #212657

Not just a swatch — here's how #212657 works with other colors. Named schemes with #212657 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #212657 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #21344A

Prussian Blue 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 #212657 Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Prussian Blue 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 #212657 Secondary #7F4534 Surface #EED7C2 Accent #365247 Anchor #582239

Prussian 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.

Luxury Packaging Feature · 5 colors

Feature #212657 Anchor #141210 Accent #DC9659 Secondary #262833 Surface #F3ECE3

Prussian 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #212657 Secondary #4C5062 Support #9D9088 Ink #18140F

Prussian 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 Prussian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #212657 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 32/100

Cool

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

Softness 27/100

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 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 73/100

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 34/100

Low

Workable accent with care around contrast.

Surface fit 39/100

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 #212657

For UI

For branding

For interior

For fashion

People also use #212657 with

Lapis Lazuli 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 14.2:1. Use

Subtle surface Use #CCCEE5 for cards and hover fills. Tint 80

Avoid beside #2F2259 — 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 #212657 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: #212657;
  --color-base-rgb: 33 38 87;
  --color-base-oklch: oklch(29.4% 0.088 275.3);
  --color-50: #F4F4FB;
  --color-100: #E1E3F4;
  --color-200: #C4C8E8;
  --color-300: #9BA0D5;
  --color-400: #747BBE;
  --color-500: #535BA2;
  --color-600: #454A7D;
  --color-700: #35395A;
  --color-800: #26283B;
  --color-900: #191A25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F4F4FB',
    100: '#E1E3F4',
    200: '#C4C8E8',
    300: '#9BA0D5',
    400: '#747BBE',
    500: '#535BA2',
    600: '#454A7D',
    700: '#35395A',
    800: '#26283B',
    900: '#191A25',
  },
}

$base: #212657;
$base-ink: #FFFFFF;
$base-50: #F4F4FB;
$base-100: #E1E3F4;
$base-200: #C4C8E8;
$base-300: #9BA0D5;
$base-400: #747BBE;
$base-500: #535BA2;
$base-600: #454A7D;
$base-700: #35395A;
$base-800: #26283B;
$base-900: #191A25;
$base-hover: #1B1F47;
$base-subtle: #B1B5D9;

{
    "color": {
        "base": {
            "value": "#212657",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E1E3F4",
                "type": "color"
            },
            "200": {
                "value": "#C4C8E8",
                "type": "color"
            },
            "300": {
                "value": "#9BA0D5",
                "type": "color"
            },
            "400": {
                "value": "#747BBE",
                "type": "color"
            },
            "500": {
                "value": "#535BA2",
                "type": "color"
            },
            "600": {
                "value": "#454A7D",
                "type": "color"
            },
            "700": {
                "value": "#35395A",
                "type": "color"
            },
            "800": {
                "value": "#26283B",
                "type": "color"
            },
            "900": {
                "value": "#191A25",
                "type": "color"
            }
        }
    }
}