What color is #623CC4?

#623CC4 is a medium indigo. In RGB it is rgb(98, 60, 196), and in HSL hsl(257, 54%, 50%).

Is #623CC4 accessible as text?

On white, #623CC4 has a contrast ratio of 7.09:1 (passes WCAG AA for body text); on black it is 2.96:1 (fails). For text placed on #623CC4, use white for the best readability.

What is the closest Tailwind color to #623CC4?

The nearest Tailwind CSS token is violet-800 (#5D0EC0).

What colors go well with #623CC4?

#623CC4 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9DC43B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #623CC4 below.

Is #623CC4 good for buttons?

#623CC4 works well for buttons and highlights, but use white text on #623CC4 — black text only reaches 2.96:1, below the 4.5:1 needed for normal-size labels.

Is #623CC4 the same as CSS slateblue?

No — #623CC4 is not the CSS named color slateblue, but slateblue (#6A5ACD) 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.

#623CC4 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #623CC4

Not just a swatch — here's how #623CC4 works with other colors. Named schemes with #623CC4 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #623CC4 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #8268E3

Grape is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Grape.

Berry & Cream Lead · 5 colors

Lead #623CC4 Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

Grape 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 #623CC4 Secondary #8680AF Support #9D9088 Ink #18140F

Grape 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 Grape carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #623CC4 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

Grape opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Sunset Warmth Glow · 5 colors

Glow #623CC4 Secondary #E86B6E Accent #F5934B Anchor #583B57 Surface #F7E7D7

Grape glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #623CC4 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 25/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 55/100

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 25/100

Low

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 77/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 84/100

Very high

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

Surface fit 9/100

Very low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #623CC4

For UI

For branding

For interior

For fashion

People also use #623CC4 with

Glaucous Dark Orchid Peridot 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 7.1:1. Use

Subtle surface Use #E1DCEF for cards and hover fills. Tint 80

Avoid beside #903BC4 — 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 #623CC4 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: #623CC4;
  --color-base-rgb: 98 60 196;
  --color-base-oklch: oklch(48.3% 0.199 289.6);
  --color-50: #F5F3FC;
  --color-100: #E6DFF6;
  --color-200: #CDC0EC;
  --color-300: #A895DA;
  --color-400: #866CC6;
  --color-500: #664BAA;
  --color-600: #523F83;
  --color-700: #3E325D;
  --color-800: #2B233D;
  --color-900: #1B1726;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  grape: {
    50: '#F5F3FC',
    100: '#E6DFF6',
    200: '#CDC0EC',
    300: '#A895DA',
    400: '#866CC6',
    500: '#664BAA',
    600: '#523F83',
    700: '#3E325D',
    800: '#2B233D',
    900: '#1B1726',
  },
}

$base: #623CC4;
$base-ink: #FFFFFF;
$base-50: #F5F3FC;
$base-100: #E6DFF6;
$base-200: #CDC0EC;
$base-300: #A895DA;
$base-400: #866CC6;
$base-500: #664BAA;
$base-600: #523F83;
$base-700: #3E325D;
$base-800: #2B233D;
$base-900: #1B1726;
$base-hover: #4E2F9D;
$base-subtle: #D2C9E8;

{
    "color": {
        "base": {
            "value": "#623CC4",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E6DFF6",
                "type": "color"
            },
            "200": {
                "value": "#CDC0EC",
                "type": "color"
            },
            "300": {
                "value": "#A895DA",
                "type": "color"
            },
            "400": {
                "value": "#866CC6",
                "type": "color"
            },
            "500": {
                "value": "#664BAA",
                "type": "color"
            },
            "600": {
                "value": "#523F83",
                "type": "color"
            },
            "700": {
                "value": "#3E325D",
                "type": "color"
            },
            "800": {
                "value": "#2B233D",
                "type": "color"
            },
            "900": {
                "value": "#1B1726",
                "type": "color"
            }
        }
    }
}