What color is #5128BB?

#5128BB is a medium indigo. In RGB it is rgb(81, 40, 187), and in HSL hsl(257, 65%, 45%).

Is #5128BB accessible as text?

On white, #5128BB has a contrast ratio of 8.86:1 (passes WCAG AA for body text); on black it is 2.37:1 (fails). For text placed on #5128BB, use white for the best readability.

What is the closest Tailwind color to #5128BB?

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

What colors go well with #5128BB?

#5128BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #93BD28. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5128BB below.

Is #5128BB good for buttons?

#5128BB works well for buttons and highlights, but use white text on #5128BB — black text only reaches 2.37:1, below the 4.5:1 needed for normal-size labels.

Is #5128BB the same as CSS rebeccapurple?

No — #5128BB is not the CSS named color rebeccapurple, but rebeccapurple (#663399) is the closest CSS named color.

#5128BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5128BB

Not just a swatch — here's how #5128BB works with other colors. Named schemes with #5128BB in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #5128BB Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #6F58D9

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 #5128BB Surface #F5E5D7 Anchor #5B2141 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 #5128BB Secondary #7572A2 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 #5128BB Accent #A5C4C3 Surface #E9D5BF 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 #5128BB Secondary #E86A6F Accent #F5934C 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 #5128BB 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 22/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 61/100

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 20/100

Very low

Clean and current — no dusty, aged cast.

Luxury 56/100

Moderate

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

Brand distinctiveness 81/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 70/100

High

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

Surface fit 12/100

Very low

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

Print safety 70/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #5128BB

For UI

For branding

For interior

For fashion

People also use #5128BB with

Royal Blue 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 8.9:1. Use

Subtle surface Use #DDD6F0 for cards and hover fills. Tint 80

Avoid beside #8428BD — 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 #5128BB 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: #5128BB;
  --color-base-rgb: 81 40 187;
  --color-base-oklch: oklch(43.4% 0.210 286.6);
  --color-50: #F5F2FD;
  --color-100: #E5DDF9;
  --color-200: #CBBCF1;
  --color-300: #A58EE2;
  --color-400: #8263CF;
  --color-500: #6241B4;
  --color-600: #4F3889;
  --color-700: #3C2D62;
  --color-800: #2A2140;
  --color-900: #1B1627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  grape: {
    50: '#F5F2FD',
    100: '#E5DDF9',
    200: '#CBBCF1',
    300: '#A58EE2',
    400: '#8263CF',
    500: '#6241B4',
    600: '#4F3889',
    700: '#3C2D62',
    800: '#2A2140',
    900: '#1B1627',
  },
}

$base: #5128BB;
$base-ink: #FFFFFF;
$base-50: #F5F2FD;
$base-100: #E5DDF9;
$base-200: #CBBCF1;
$base-300: #A58EE2;
$base-400: #8263CF;
$base-500: #6241B4;
$base-600: #4F3889;
$base-700: #3C2D62;
$base-800: #2A2140;
$base-900: #1B1627;
$base-hover: #422097;
$base-subtle: #CCC0EA;

{
    "color": {
        "base": {
            "value": "#5128BB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E5DDF9",
                "type": "color"
            },
            "200": {
                "value": "#CBBCF1",
                "type": "color"
            },
            "300": {
                "value": "#A58EE2",
                "type": "color"
            },
            "400": {
                "value": "#8263CF",
                "type": "color"
            },
            "500": {
                "value": "#6241B4",
                "type": "color"
            },
            "600": {
                "value": "#4F3889",
                "type": "color"
            },
            "700": {
                "value": "#3C2D62",
                "type": "color"
            },
            "800": {
                "value": "#2A2140",
                "type": "color"
            },
            "900": {
                "value": "#1B1627",
                "type": "color"
            }
        }
    }
}

Palettes built on #5128BB

Color Lab

Pairs with #5128BB

UI roles & guardrails

In real applications

Scales

Every model

Export