What color is #6488BF?

#6488BF is a medium blue. In RGB it is rgb(100, 136, 191), and in HSL hsl(216, 42%, 57%).

Is #6488BF accessible as text?

On white, #6488BF has a contrast ratio of 3.61:1 (fails WCAG AA for body text); on black it is 5.82:1 (passes). For text placed on #6488BF, use black for the best readability.

What is the closest Tailwind color to #6488BF?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #6488BF?

#6488BF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF9B63. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #6488BF below.

Is #6488BF good for buttons?

#6488BF works well for buttons and highlights, but use black text on #6488BF — white text only reaches 3.61:1, below the 4.5:1 needed for normal-size labels.

Is #6488BF the same as CSS steelblue?

No — #6488BF is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#6488BF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #6488BF

Not just a swatch — here's how #6488BF works with other colors. Named schemes with #6488BF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #6488BF Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Glaucous 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 #6488BF Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #6488BF Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #8BADE1

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #6488BF Secondary #A6B3C7 Support #9D8F89 Ink #16140F

Glaucous 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 Glaucous carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #6488BF Anchor #3B2924 Surface #EAE5D0 Accent #789E79 Secondary #393933

Glaucous 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 #6488BF 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 26/100

Cool

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

Softness 53/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 79/100

High

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

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #6488BF

For UI

For branding

For interior

For fashion

People also use #6488BF with

Medium Turquoise Slate Blue Camel Gainsboro Charcoal

UI roles & guardrails

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

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

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

Background Pair with #141310 text at 5.1:1. Use

Subtle surface Use #E2E8F0 for cards and hover fills. Tint 80

Avoid beside #6369BF — 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 #6488BF 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: #6488BF;
  --color-base-rgb: 100 136 191;
  --color-base-oklch: oklch(62.3% 0.093 258.6);
  --color-50: #F4F7FB;
  --color-100: #E2E9F4;
  --color-200: #C5D3E7;
  --color-300: #9CB2D3;
  --color-400: #7692BC;
  --color-500: #55739F;
  --color-600: #475C7B;
  --color-700: #364458;
  --color-800: #262E3B;
  --color-900: #191D24;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  glaucous: {
    50: '#F4F7FB',
    100: '#E2E9F4',
    200: '#C5D3E7',
    300: '#9CB2D3',
    400: '#7692BC',
    500: '#55739F',
    600: '#475C7B',
    700: '#364458',
    800: '#262E3B',
    900: '#191D24',
  },
}

$base: #6488BF;
$base-ink: #141310;
$base-50: #F4F7FB;
$base-100: #E2E9F4;
$base-200: #C5D3E7;
$base-300: #9CB2D3;
$base-400: #7692BC;
$base-500: #55739F;
$base-600: #475C7B;
$base-700: #364458;
$base-800: #262E3B;
$base-900: #191D24;
$base-hover: #436BA5;
$base-subtle: #D4DCE9;

{
    "color": {
        "base": {
            "value": "#6488BF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F7FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E9F4",
                "type": "color"
            },
            "200": {
                "value": "#C5D3E7",
                "type": "color"
            },
            "300": {
                "value": "#9CB2D3",
                "type": "color"
            },
            "400": {
                "value": "#7692BC",
                "type": "color"
            },
            "500": {
                "value": "#55739F",
                "type": "color"
            },
            "600": {
                "value": "#475C7B",
                "type": "color"
            },
            "700": {
                "value": "#364458",
                "type": "color"
            },
            "800": {
                "value": "#262E3B",
                "type": "color"
            },
            "900": {
                "value": "#191D24",
                "type": "color"
            }
        }
    }
}

Palettes built on #6488BF

Color Lab

Pairs with #6488BF

UI roles & guardrails

In real applications

Scales

Every model

Export