What color is #5137BC?

#5137BC is a medium indigo. In RGB it is rgb(81, 55, 188), and in HSL hsl(252, 55%, 48%).

Is #5137BC accessible as text?

On white, #5137BC has a contrast ratio of 8.01:1 (passes WCAG AA for body text); on black it is 2.62:1 (fails). For text placed on #5137BC, use white for the best readability.

What is the closest Tailwind color to #5137BC?

The nearest Tailwind CSS token is indigo-700 (#432DD7).

What colors go well with #5137BC?

#5137BC pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A3BE37. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #5137BC below.

Is #5137BC good for buttons?

#5137BC works well for buttons and highlights, but use white text on #5137BC — black text only reaches 2.62:1, below the 4.5:1 needed for normal-size labels.

Is #5137BC the same as CSS rebeccapurple?

No — #5137BC is not the CSS named color rebeccapurple, but rebeccapurple (#663399) 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.

#5137BC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #5137BC

Not just a swatch — here's how #5137BC works with other colors. Named schemes with #5137BC in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #5137BC Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #7063DB

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 #5137BC Surface #F5E5D7 Anchor #5B2142 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 #5137BC Secondary #7979A6 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 #5137BC Accent #A5C4C3 Surface #EAD5BF 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 #5137BC Secondary #E86A70 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 #5137BC 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 21/100

Cool

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

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 58/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 55/100

Moderate

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

Brand distinctiveness 76/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 80/100

High

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

Surface fit 11/100

Very low

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

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #5137BC

For UI

For branding

For interior

For fashion

People also use #5137BC with

Glaucous Dark Orchid Peridot Gainsboro Prussian Blue

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 8.0:1. Use

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

Avoid beside #7F37BE — 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 #5137BC 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: #5137BC;
  --color-base-rgb: 81 55 188;
  --color-base-oklch: oklch(45.3% 0.196 284.3);
  --color-50: #F5F3FC;
  --color-100: #E3DFF6;
  --color-200: #C9C0ED;
  --color-300: #A294DB;
  --color-400: #7E6BC7;
  --color-500: #5D4AAB;
  --color-600: #4C3F83;
  --color-700: #3A315E;
  --color-800: #29233E;
  --color-900: #1A1726;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  grape: {
    50: '#F5F3FC',
    100: '#E3DFF6',
    200: '#C9C0ED',
    300: '#A294DB',
    400: '#7E6BC7',
    500: '#5D4AAB',
    600: '#4C3F83',
    700: '#3A315E',
    800: '#29233E',
    900: '#1A1726',
  },
}

$base: #5137BC;
$base-ink: #FFFFFF;
$base-50: #F5F3FC;
$base-100: #E3DFF6;
$base-200: #C9C0ED;
$base-300: #A294DB;
$base-400: #7E6BC7;
$base-500: #5D4AAB;
$base-600: #4C3F83;
$base-700: #3A315E;
$base-800: #29233E;
$base-900: #1A1726;
$base-hover: #422C98;
$base-subtle: #CDC7E8;

{
    "color": {
        "base": {
            "value": "#5137BC",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E3DFF6",
                "type": "color"
            },
            "200": {
                "value": "#C9C0ED",
                "type": "color"
            },
            "300": {
                "value": "#A294DB",
                "type": "color"
            },
            "400": {
                "value": "#7E6BC7",
                "type": "color"
            },
            "500": {
                "value": "#5D4AAB",
                "type": "color"
            },
            "600": {
                "value": "#4C3F83",
                "type": "color"
            },
            "700": {
                "value": "#3A315E",
                "type": "color"
            },
            "800": {
                "value": "#29233E",
                "type": "color"
            },
            "900": {
                "value": "#1A1726",
                "type": "color"
            }
        }
    }
}

Palettes built on #5137BC

Color Lab

Pairs with #5137BC

UI roles & guardrails

In real applications

Scales

Every model

Export