What color is #676DDD?

#676DDD is a light, soft blue-violet. In RGB it is rgb(103, 109, 221), and in HSL hsl(237, 63%, 64%).

Is #676DDD accessible as text?

On white, #676DDD has a contrast ratio of 4.37:1 (fails WCAG AA for body text); on black it is 4.81:1 (passes). For text placed on #676DDD, use black for the best readability.

What is the closest Tailwind color to #676DDD?

The nearest Tailwind CSS token is indigo-500 (#615FFF).

What colors go well with #676DDD?

#676DDD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DDD769. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #676DDD below.

Is #676DDD good for buttons?

#676DDD works well for buttons and highlights, but use black text on #676DDD — white text only reaches 4.37:1, below the 4.5:1 needed for normal-size labels.

Is #676DDD the same as CSS mediumslateblue?

No — #676DDD is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) is the closest CSS named color.

#676DDD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #676DDD

Not just a swatch — here's how #676DDD works with other colors. Named schemes with #676DDD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #676DDD Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #22344A

Medium 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 #676DDD Secondary #7F4534 Surface #EED7C2 Accent #365247 Anchor #582239

Medium 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 #676DDD Anchor #3B2923 Surface #F3E1D2 Accent #769F7B Secondary #3C3734

Medium 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 #676DDD Surface #F6E5D8 Anchor #5B2142 Accent #E5C2C9 Secondary #322B2F

Medium 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 #676DDD Secondary #9DA4CC Support #9D9088 Ink #18140F

Medium 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 Medium Slate Blue carrying the quiet middle.

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Color Lab

How #676DDD 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 16/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 45/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 92/100

Very high

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

Surface fit 16/100

Very low

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

Print safety 74/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #676DDD

For UI

For branding

For interior

For fashion

People also use #676DDD with

Sky Blue Medium Purple Flax Gainsboro Prussian Blue

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 4.4:1. Use

Subtle surface Use #E4E5F5 for cards and hover fills. Tint 80

Avoid beside #8A69DD — 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 #676DDD 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: #676DDD;
  --color-base-rgb: 103 109 221;
  --color-base-oklch: oklch(58.7% 0.168 277.6);
  --color-50: #F2F3FD;
  --color-100: #DDDEF8;
  --color-200: #BDBFF0;
  --color-300: #8F93E0;
  --color-400: #656ACD;
  --color-500: #4348B2;
  --color-600: #3A3E88;
  --color-700: #2E3161;
  --color-800: #212340;
  --color-900: #161727;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F2F3FD',
    100: '#DDDEF8',
    200: '#BDBFF0',
    300: '#8F93E0',
    400: '#656ACD',
    500: '#4348B2',
    600: '#3A3E88',
    700: '#2E3161',
    800: '#212340',
    900: '#161727',
  },
}

$base: #676DDD;
$base-ink: #141310;
$base-50: #F2F3FD;
$base-100: #DDDEF8;
$base-200: #BDBFF0;
$base-300: #8F93E0;
$base-400: #656ACD;
$base-500: #4348B2;
$base-600: #3A3E88;
$base-700: #2E3161;
$base-800: #212340;
$base-900: #161727;
$base-hover: #343CD1;
$base-subtle: #D6D8F1;

{
    "color": {
        "base": {
            "value": "#676DDD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F3FD",
                "type": "color"
            },
            "100": {
                "value": "#DDDEF8",
                "type": "color"
            },
            "200": {
                "value": "#BDBFF0",
                "type": "color"
            },
            "300": {
                "value": "#8F93E0",
                "type": "color"
            },
            "400": {
                "value": "#656ACD",
                "type": "color"
            },
            "500": {
                "value": "#4348B2",
                "type": "color"
            },
            "600": {
                "value": "#3A3E88",
                "type": "color"
            },
            "700": {
                "value": "#2E3161",
                "type": "color"
            },
            "800": {
                "value": "#212340",
                "type": "color"
            },
            "900": {
                "value": "#161727",
                "type": "color"
            }
        }
    }
}

Palettes built on #676DDD

Color Lab

Pairs with #676DDD

UI roles & guardrails

In real applications

Scales

Every model

Export