What color is #43317F?

#43317F is a dark indigo. In RGB it is rgb(67, 49, 127), and in HSL hsl(254, 44%, 35%).

Is #43317F accessible as text?

On white, #43317F has a contrast ratio of 10.58:1 (passes WCAG AA for body text); on black it is 1.98:1 (fails). For text placed on #43317F, use white for the best readability.

What is the closest Tailwind color to #43317F?

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

What colors go well with #43317F?

#43317F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6E8132. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #43317F below.

Is #43317F good for buttons?

#43317F works well for buttons and highlights, but use white text on #43317F — black text only reaches 1.98:1, below the 4.5:1 needed for normal-size labels.

Is #43317F the same as CSS darkslateblue?

No — #43317F is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#43317F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #43317F

Not just a swatch — here's how #43317F works with other colors. Named schemes with #43317F in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #43317F Anchor #141210 Accent #DB9757 Secondary #282732 Surface #F3ECE3

Dark Slate 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 #43317F Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #2F1444

Dark Slate 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 Dark Slate Blue.

Coastal Morning Lead · 5 colors

Lead #43317F Accent #A5C4C3 Surface #E9D6BF 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 #43317F Secondary #7E4633 Surface #EDD8C2 Accent #355248 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #43317F Secondary #686581 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 #43317F 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 31/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 63/100

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 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 67/100

High

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

Surface fit 22/100

Low

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

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #43317F

For UI

For branding

For interior

For fashion

People also use #43317F with

Lapis Lazuli Eminence 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 10.6:1. Use

Subtle surface Use #D8D3E8 for cards and hover fills. Tint 80

Avoid beside #5E3281 — 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 #43317F 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: #43317F;
  --color-base-rgb: 67 49 127;
  --color-base-oklch: oklch(37.9% 0.126 289.6);
  --color-50: #F5F4FB;
  --color-100: #E6E1F4;
  --color-200: #CDC4E8;
  --color-300: #A89BD4;
  --color-400: #8675BD;
  --color-500: #6654A1;
  --color-600: #52467C;
  --color-700: #3E3659;
  --color-800: #2B263B;
  --color-900: #1B1925;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-blue: {
    50: '#F5F4FB',
    100: '#E6E1F4',
    200: '#CDC4E8',
    300: '#A89BD4',
    400: '#8675BD',
    500: '#6654A1',
    600: '#52467C',
    700: '#3E3659',
    800: '#2B263B',
    900: '#1B1925',
  },
}

$base: #43317F;
$base-ink: #FFFFFF;
$base-50: #F5F4FB;
$base-100: #E6E1F4;
$base-200: #CDC4E8;
$base-300: #A89BD4;
$base-400: #8675BD;
$base-500: #6654A1;
$base-600: #52467C;
$base-700: #3E3659;
$base-800: #2B263B;
$base-900: #1B1925;
$base-hover: #372867;
$base-subtle: #C4BDDE;

{
    "color": {
        "base": {
            "value": "#43317F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E6E1F4",
                "type": "color"
            },
            "200": {
                "value": "#CDC4E8",
                "type": "color"
            },
            "300": {
                "value": "#A89BD4",
                "type": "color"
            },
            "400": {
                "value": "#8675BD",
                "type": "color"
            },
            "500": {
                "value": "#6654A1",
                "type": "color"
            },
            "600": {
                "value": "#52467C",
                "type": "color"
            },
            "700": {
                "value": "#3E3659",
                "type": "color"
            },
            "800": {
                "value": "#2B263B",
                "type": "color"
            },
            "900": {
                "value": "#1B1925",
                "type": "color"
            }
        }
    }
}

Palettes built on #43317F

Color Lab

Pairs with #43317F

UI roles & guardrails

In real applications

Scales

Every model

Export