What color is #644E79?

#644E79 is a dark, muted violet. In RGB it is rgb(100, 78, 121), and in HSL hsl(271, 22%, 39%).

Is #644E79 accessible as text?

On white, #644E79 has a contrast ratio of 7.22:1 (passes WCAG AA for body text); on black it is 2.91:1 (fails). For text placed on #644E79, use white for the best readability.

What is the closest Tailwind color to #644E79?

The nearest Tailwind CSS token is mauve-600 (#594C5B).

What colors go well with #644E79?

#644E79 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #63794E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #644E79 below.

Is #644E79 good for buttons?

#644E79 works well for buttons and highlights, but use white text on #644E79 — black text only reaches 2.91:1, below the 4.5:1 needed for normal-size labels.

Is #644E79 the same as CSS darkslateblue?

No — #644E79 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#644E79 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #644E79

Not just a swatch — here's how #644E79 works with other colors. Named schemes with #644E79 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #644E79 Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

Ultra Violet sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Vintage Leather Lead · 5 colors

Lead #644E79 Secondary #7E4631 Surface #EDD8C1 Accent #355249 Anchor #592236

Ultra Violet 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 #644E79 Anchor #3B2923 Surface #F2E1D1 Accent #9F9361 Secondary #3C3734

Ultra Violet 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.

Japanese Sand Base · 5 colors

Base #644E79 Surface #F2E8DC Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2723

Ultra Violet sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #644E79 Secondary #857E8E Support #9C9088 Ink #18140F

Ultra Violet 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 Ultra Violet carrying the quiet middle.

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Color Lab

How #644E79 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 45/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 52/100

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 60/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 58/100

Moderate

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

Brand distinctiveness 20/100

Very low

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

UI accent fit 77/100

High

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

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #644E79

For UI

For branding

For interior

For fashion

People also use #644E79 with

Very Peri Plum Fern Green Gainsboro Onyx

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 7.2:1. Use

Subtle surface Use #E0DBE5 for cards and hover fills. Tint 80

Avoid beside #734E79 — 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 #644E79 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: #644E79;
  --color-base-rgb: 100 78 121;
  --color-base-oklch: oklch(46.4% 0.073 307.2);
  --color-50: #F7F6F9;
  --color-100: #EBE6EF;
  --color-200: #D6CDDF;
  --color-300: #B8A9C6;
  --color-400: #9A87AB;
  --color-500: #7B678E;
  --color-600: #61536F;
  --color-700: #483F50;
  --color-800: #312B36;
  --color-900: #1F1C22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  ultra-violet: {
    50: '#F7F6F9',
    100: '#EBE6EF',
    200: '#D6CDDF',
    300: '#B8A9C6',
    400: '#9A87AB',
    500: '#7B678E',
    600: '#61536F',
    700: '#483F50',
    800: '#312B36',
    900: '#1F1C22',
  },
}

$base: #644E79;
$base-ink: #FFFFFF;
$base-50: #F7F6F9;
$base-100: #EBE6EF;
$base-200: #D6CDDF;
$base-300: #B8A9C6;
$base-400: #9A87AB;
$base-500: #7B678E;
$base-600: #61536F;
$base-700: #483F50;
$base-800: #312B36;
$base-900: #1F1C22;
$base-hover: #503E61;
$base-subtle: #D1C9D8;

{
    "color": {
        "base": {
            "value": "#644E79",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F6F9",
                "type": "color"
            },
            "100": {
                "value": "#EBE6EF",
                "type": "color"
            },
            "200": {
                "value": "#D6CDDF",
                "type": "color"
            },
            "300": {
                "value": "#B8A9C6",
                "type": "color"
            },
            "400": {
                "value": "#9A87AB",
                "type": "color"
            },
            "500": {
                "value": "#7B678E",
                "type": "color"
            },
            "600": {
                "value": "#61536F",
                "type": "color"
            },
            "700": {
                "value": "#483F50",
                "type": "color"
            },
            "800": {
                "value": "#312B36",
                "type": "color"
            },
            "900": {
                "value": "#1F1C22",
                "type": "color"
            }
        }
    }
}

Palettes built on #644E79

Color Lab

Pairs with #644E79

UI roles & guardrails

In real applications

Scales

Every model

Export