What color is #288BF5?

#288BF5 is a medium, vivid blue. In RGB it is rgb(40, 139, 245), and in HSL hsl(211, 91%, 56%).

Is #288BF5 accessible as text?

On white, #288BF5 has a contrast ratio of 3.44:1 (fails WCAG AA for body text); on black it is 6.10:1 (passes). For text placed on #288BF5, use black for the best readability.

What is the closest Tailwind color to #288BF5?

The nearest Tailwind CSS token is blue-500 (#2B7FFF).

What colors go well with #288BF5?

#288BF5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F59229. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #288BF5 below.

Is #288BF5 good for buttons?

#288BF5 works well for buttons and highlights, but use black text on #288BF5 — white text only reaches 3.44:1, below the 4.5:1 needed for normal-size labels.

Is #288BF5 the same as CSS dodgerblue?

No — #288BF5 is not the CSS named color dodgerblue, but dodgerblue (#1E90FF) is the closest CSS named color.

#288BF5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #288BF5

Not just a swatch — here's how #288BF5 works with other colors. Named schemes with #288BF5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #288BF5 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Dodger 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 #288BF5 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Dodger Blue 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 #288BF5 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #60B3FF

Dodger 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 Dodger Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #288BF5 Secondary #9BB9DF Support #9D8F89 Ink #16140F

Dodger 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 Dodger Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #288BF5 Anchor #3B2924 Surface #EAE5D0 Accent #799E78 Secondary #393933

Dodger 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 #288BF5 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 4/100

Cool

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

Softness 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 38/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 41/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 70/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 77/100

High

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

Surface fit 20/100

Low

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

Print safety 62/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #288BF5

For UI

For branding

For interior

For fashion

People also use #288BF5 with

Cyan Ultramarine Butterscotch 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 5.4:1. Use

Subtle surface Use #DAE8F7 for cards and hover fills. Tint 80

Avoid beside #2947F5 — 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 #288BF5 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: #288BF5;
  --color-base-rgb: 40 139 245;
  --color-base-oklch: oklch(63.6% 0.181 254.0);
  --color-50: #F0F7FE;
  --color-100: #D8EAFD;
  --color-200: #B1D5FB;
  --color-300: #7DB6F2;
  --color-400: #4E96E4;
  --color-500: #2A78CB;
  --color-600: #285F9A;
  --color-700: #23466C;
  --color-800: #1B3046;
  --color-900: #121E2B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  dodger-blue: {
    50: '#F0F7FE',
    100: '#D8EAFD',
    200: '#B1D5FB',
    300: '#7DB6F2',
    400: '#4E96E4',
    500: '#2A78CB',
    600: '#285F9A',
    700: '#23466C',
    800: '#1B3046',
    900: '#121E2B',
  },
}

$base: #288BF5;
$base-ink: #141310;
$base-50: #F0F7FE;
$base-100: #D8EAFD;
$base-200: #B1D5FB;
$base-300: #7DB6F2;
$base-400: #4E96E4;
$base-500: #2A78CB;
$base-600: #285F9A;
$base-700: #23466C;
$base-800: #1B3046;
$base-900: #121E2B;
$base-hover: #0A6FDA;
$base-subtle: #C6DDF5;

{
    "color": {
        "base": {
            "value": "#288BF5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F7FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EAFD",
                "type": "color"
            },
            "200": {
                "value": "#B1D5FB",
                "type": "color"
            },
            "300": {
                "value": "#7DB6F2",
                "type": "color"
            },
            "400": {
                "value": "#4E96E4",
                "type": "color"
            },
            "500": {
                "value": "#2A78CB",
                "type": "color"
            },
            "600": {
                "value": "#285F9A",
                "type": "color"
            },
            "700": {
                "value": "#23466C",
                "type": "color"
            },
            "800": {
                "value": "#1B3046",
                "type": "color"
            },
            "900": {
                "value": "#121E2B",
                "type": "color"
            }
        }
    }
}

Palettes built on #288BF5

Color Lab

Pairs with #288BF5

UI roles & guardrails

In real applications

Scales

Every model

Export