What color is #413C8B?

#413C8B is a dark blue-violet. In RGB it is rgb(65, 60, 139), and in HSL hsl(244, 40%, 39%).

Is #413C8B accessible as text?

On white, #413C8B has a contrast ratio of 9.36:1 (passes WCAG AA for body text); on black it is 2.24:1 (fails). For text placed on #413C8B, use white for the best readability.

What is the closest Tailwind color to #413C8B?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #413C8B?

#413C8B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #868B3C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #413C8B below.

Is #413C8B good for buttons?

#413C8B works well for buttons and highlights, but use white text on #413C8B — black text only reaches 2.24:1, below the 4.5:1 needed for normal-size labels.

Is #413C8B the same as CSS darkslateblue?

No — #413C8B is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#413C8B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #413C8B

Not just a swatch — here's how #413C8B works with other colors. Named schemes with #413C8B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #413C8B 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 #413C8B 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 #413C8B 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 #413C8B Surface #F5E5D8 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 #413C8B Secondary #6C6E8A 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 #413C8B 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 27/100

Cool

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

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 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 76/100

High

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

Surface fit 20/100

Very low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #413C8B

For UI

For branding

For interior

For fashion

People also use #413C8B with

Steel Blue Eminence Olive 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 9.4:1. Use

Subtle surface Use #D8D7E9 for cards and hover fills. Tint 80

Avoid beside #5B3C8B — 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 #413C8B 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: #413C8B;
  --color-base-rgb: 65 60 139;
  --color-base-oklch: oklch(40.6% 0.127 282.0);
  --color-50: #F4F4FB;
  --color-100: #E3E2F3;
  --color-200: #C8C6E6;
  --color-300: #A19ED1;
  --color-400: #7C78BA;
  --color-500: #5C579E;
  --color-600: #4B487A;
  --color-700: #393758;
  --color-800: #28273A;
  --color-900: #1A1924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F4F4FB',
    100: '#E3E2F3',
    200: '#C8C6E6',
    300: '#A19ED1',
    400: '#7C78BA',
    500: '#5C579E',
    600: '#4B487A',
    700: '#393758',
    800: '#28273A',
    900: '#1A1924',
  },
}

$base: #413C8B;
$base-ink: #FFFFFF;
$base-50: #F4F4FB;
$base-100: #E3E2F3;
$base-200: #C8C6E6;
$base-300: #A19ED1;
$base-400: #7C78BA;
$base-500: #5C579E;
$base-600: #4B487A;
$base-700: #393758;
$base-800: #28273A;
$base-900: #1A1924;
$base-hover: #34306F;
$base-subtle: #C4C2DF;

{
    "color": {
        "base": {
            "value": "#413C8B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E3E2F3",
                "type": "color"
            },
            "200": {
                "value": "#C8C6E6",
                "type": "color"
            },
            "300": {
                "value": "#A19ED1",
                "type": "color"
            },
            "400": {
                "value": "#7C78BA",
                "type": "color"
            },
            "500": {
                "value": "#5C579E",
                "type": "color"
            },
            "600": {
                "value": "#4B487A",
                "type": "color"
            },
            "700": {
                "value": "#393758",
                "type": "color"
            },
            "800": {
                "value": "#28273A",
                "type": "color"
            },
            "900": {
                "value": "#1A1924",
                "type": "color"
            }
        }
    }
}

Palettes built on #413C8B

Color Lab

Pairs with #413C8B

UI roles & guardrails

In real applications

Scales

Every model

Export