What color is #413F77?

#413F77 is a dark, muted blue-violet. In RGB it is rgb(65, 63, 119), and in HSL hsl(242, 31%, 36%).

Is #413F77 accessible as text?

On white, #413F77 has a contrast ratio of 9.54:1 (passes WCAG AA for body text); on black it is 2.20:1 (fails). For text placed on #413F77, use white for the best readability.

What is the closest Tailwind color to #413F77?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #413F77?

#413F77 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #76783F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #413F77 below.

Is #413F77 good for buttons?

#413F77 works well for buttons and highlights, but use white text on #413F77 — black text only reaches 2.20:1, below the 4.5:1 needed for normal-size labels.

Is #413F77 the same as CSS darkslateblue?

No — #413F77 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#413F77 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #413F77

Not just a swatch — here's how #413F77 works with other colors. Named schemes with #413F77 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #413F77 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Dark Slate 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 #413F77 Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582238

Dark Slate 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.

Modern Café Dominant · 5 colors

Dominant #413F77 Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Dark Slate Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Berry & Cream Lead · 5 colors

Lead #413F77 Surface #F5E5D7 Anchor #5B2142 Accent #E5C2C9 Secondary #332B2F

Dark Slate Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #413F77 Secondary #6B6C81 Support #9D9088 Ink #18140F

Dark Slate 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 Dark Slate Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #413F77 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 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 25/100

Low

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

UI accent fit 67/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 31/100

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 #413F77

For UI

For branding

For interior

For fashion

People also use #413F77 with

Teal Blue Ultra Violet 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 9.5:1. Use

Subtle surface Use #D8D7E6 for cards and hover fills. Tint 80

Avoid beside #543F78 — 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 #413F77 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: #413F77;
  --color-base-rgb: 65 63 119;
  --color-base-oklch: oklch(39.8% 0.093 283.0);
  --color-50: #F5F5FA;
  --color-100: #E4E4F1;
  --color-200: #CACAE3;
  --color-300: #A5A4CC;
  --color-400: #817FB3;
  --color-500: #615F96;
  --color-600: #4F4E74;
  --color-700: #3C3B54;
  --color-800: #292938;
  --color-900: #1B1A23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F5F5FA',
    100: '#E4E4F1',
    200: '#CACAE3',
    300: '#A5A4CC',
    400: '#817FB3',
    500: '#615F96',
    600: '#4F4E74',
    700: '#3C3B54',
    800: '#292938',
    900: '#1B1A23',
  },
}

$base: #413F77;
$base-ink: #FFFFFF;
$base-50: #F5F5FA;
$base-100: #E4E4F1;
$base-200: #CACAE3;
$base-300: #A5A4CC;
$base-400: #817FB3;
$base-500: #615F96;
$base-600: #4F4E74;
$base-700: #3C3B54;
$base-800: #292938;
$base-900: #1B1A23;
$base-hover: #343360;
$base-subtle: #C3C3DA;

{
    "color": {
        "base": {
            "value": "#413F77",
            "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": "#A5A4CC",
                "type": "color"
            },
            "400": {
                "value": "#817FB3",
                "type": "color"
            },
            "500": {
                "value": "#615F96",
                "type": "color"
            },
            "600": {
                "value": "#4F4E74",
                "type": "color"
            },
            "700": {
                "value": "#3C3B54",
                "type": "color"
            },
            "800": {
                "value": "#292938",
                "type": "color"
            },
            "900": {
                "value": "#1B1A23",
                "type": "color"
            }
        }
    }
}