What color is #B5B9FB?

#B5B9FB is a pale, soft blue-violet. In RGB it is rgb(181, 185, 251), and in HSL hsl(237, 90%, 85%).

Is #B5B9FB accessible as text?

On white, #B5B9FB has a contrast ratio of 1.86:1 (fails WCAG AA for body text); on black it is 11.30:1 (passes). For text placed on #B5B9FB, use black for the best readability.

What is the closest Tailwind color to #B5B9FB?

The nearest Tailwind CSS token is violet-300 (#C4B4FF).

What colors go well with #B5B9FB?

#B5B9FB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FBF8B6. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #B5B9FB below.

Is #B5B9FB good for buttons?

#B5B9FB works well for buttons and highlights, but use black text on #B5B9FB — white text only reaches 1.86:1, below the 4.5:1 needed for normal-size labels.

Is #B5B9FB the same as CSS lightsteelblue?

No — #B5B9FB is not the CSS named color lightsteelblue, but lightsteelblue (#B0C4DE) is the closest CSS named color.

#B5B9FB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #B5B9FB

Not just a swatch — here's how #B5B9FB works with other colors. Named schemes with #B5B9FB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #B5B9FB Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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

Nordic Calm Accent · 5 colors

Accent #B5B9FB Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Light Steel Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #B5B9FB Secondary #E9EBFF Support #9D9088 Ink #18140F

Light Steel 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 Light Steel Blue carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #B5B9FB Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #DCE1FF

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

Modern Café Dominant · 5 colors

Dominant #B5B9FB Anchor #3B2923 Surface #F3E1D2 Accent #759F7C Secondary #3C3734

Light Steel 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.

Build a working theme in the generator →

Color Lab

How #B5B9FB 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 33/100

Cool

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

Softness 67/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 19/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 26/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 24/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #B5B9FB

For UI

For branding

For interior

For fashion

People also use #B5B9FB with

Powder Blue Mauve Buttercream Gainsboro Prussian Blue

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

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

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 10.0:1. Use

Subtle surface Use #F2F3FC for cards and hover fills. Tint 80

Avoid beside #CAB6FB — 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 #B5B9FB at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #B5B9FB;
  --color-base-rgb: 181 185 251;
  --color-base-oklch: oklch(80.6% 0.093 281.4);
  --color-50: #F0F1FE;
  --color-100: #D8DAFD;
  --color-200: #B2B5FB;
  --color-300: #7E83F2;
  --color-400: #4F56E3;
  --color-500: #2B33CA;
  --color-600: #292E99;
  --color-700: #23276C;
  --color-800: #1B1D46;
  --color-900: #12142B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  light-steel-blue: {
    50: '#F0F1FE',
    100: '#D8DAFD',
    200: '#B2B5FB',
    300: '#7E83F2',
    400: '#4F56E3',
    500: '#2B33CA',
    600: '#292E99',
    700: '#23276C',
    800: '#1B1D46',
    900: '#12142B',
  },
}

$base: #B5B9FB;
$base-ink: #141310;
$base-50: #F0F1FE;
$base-100: #D8DAFD;
$base-200: #B2B5FB;
$base-300: #7E83F2;
$base-400: #4F56E3;
$base-500: #2B33CA;
$base-600: #292E99;
$base-700: #23276C;
$base-800: #1B1D46;
$base-900: #12142B;
$base-hover: #646BF7;
$base-subtle: #ECECFB;

{
    "color": {
        "base": {
            "value": "#B5B9FB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F1FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DAFD",
                "type": "color"
            },
            "200": {
                "value": "#B2B5FB",
                "type": "color"
            },
            "300": {
                "value": "#7E83F2",
                "type": "color"
            },
            "400": {
                "value": "#4F56E3",
                "type": "color"
            },
            "500": {
                "value": "#2B33CA",
                "type": "color"
            },
            "600": {
                "value": "#292E99",
                "type": "color"
            },
            "700": {
                "value": "#23276C",
                "type": "color"
            },
            "800": {
                "value": "#1B1D46",
                "type": "color"
            },
            "900": {
                "value": "#12142B",
                "type": "color"
            }
        }
    }
}