What color is #333360?

#333360 is a dark, muted blue-violet. In RGB it is rgb(51, 51, 96), and in HSL hsl(240, 31%, 29%).

Is #333360 accessible as text?

On white, #333360 has a contrast ratio of 11.78:1 (passes WCAG AA for body text); on black it is 1.78:1 (fails). For text placed on #333360, use white for the best readability.

What is the closest Tailwind color to #333360?

The nearest Tailwind CSS token is mauve-700 (#463947).

What colors go well with #333360?

#333360 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #616133. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #333360 below.

Is #333360 good for buttons?

#333360 works well for buttons and highlights, but use white text on #333360 — black text only reaches 1.78:1, below the 4.5:1 needed for normal-size labels.

Is #333360 the same as CSS darkslateblue?

No — #333360 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#333360 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #333360

Not just a swatch — here's how #333360 works with other colors. Named schemes with #333360 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #333360 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Yale 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 #333360 Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Yale 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 #333360 Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582238

Yale 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 #333360 Anchor #141210 Accent #DB9758 Secondary #272833 Surface #F3ECE3

Yale 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 #333360 Secondary #5C5D6E Support #9D9088 Ink #18140F

Yale 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 Yale Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #333360 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 36/100

Cool

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

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 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 30/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 47/100

Moderate

Workable accent with care around contrast.

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #333360

For UI

For branding

For interior

For fashion

People also use #333360 with

Teal Blue Eggplant Dark Olive 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 11.8:1. Use

Subtle surface Use #D3D3E3 for cards and hover fills. Tint 80

Avoid beside #423361 — 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 #333360 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: #333360;
  --color-base-rgb: 51 51 96;
  --color-base-oklch: oklch(34.5% 0.077 281.6);
  --color-50: #F5F5FA;
  --color-100: #E4E4F1;
  --color-200: #CACAE3;
  --color-300: #A4A4CC;
  --color-400: #7F7FB3;
  --color-500: #5F5F96;
  --color-600: #4E4E74;
  --color-700: #3B3B54;
  --color-800: #292938;
  --color-900: #1A1A23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F5F5FA',
    100: '#E4E4F1',
    200: '#CACAE3',
    300: '#A4A4CC',
    400: '#7F7FB3',
    500: '#5F5F96',
    600: '#4E4E74',
    700: '#3B3B54',
    800: '#292938',
    900: '#1A1A23',
  },
}

$base: #333360;
$base-ink: #FFFFFF;
$base-50: #F5F5FA;
$base-100: #E4E4F1;
$base-200: #CACAE3;
$base-300: #A4A4CC;
$base-400: #7F7FB3;
$base-500: #5F5F96;
$base-600: #4E4E74;
$base-700: #3B3B54;
$base-800: #292938;
$base-900: #1A1A23;
$base-hover: #29294D;
$base-subtle: #BCBCD5;

{
    "color": {
        "base": {
            "value": "#333360",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F5FA",
                "type": "color"
            },
            "100": {
                "value": "#E4E4F1",
                "type": "color"
            },
            "200": {
                "value": "#CACAE3",
                "type": "color"
            },
            "300": {
                "value": "#A4A4CC",
                "type": "color"
            },
            "400": {
                "value": "#7F7FB3",
                "type": "color"
            },
            "500": {
                "value": "#5F5F96",
                "type": "color"
            },
            "600": {
                "value": "#4E4E74",
                "type": "color"
            },
            "700": {
                "value": "#3B3B54",
                "type": "color"
            },
            "800": {
                "value": "#292938",
                "type": "color"
            },
            "900": {
                "value": "#1A1A23",
                "type": "color"
            }
        }
    }
}