What color is #156CD5?

#156CD5 is a medium, vivid blue. In RGB it is rgb(21, 108, 213), and in HSL hsl(213, 82%, 46%).

Is #156CD5 accessible as text?

On white, #156CD5 has a contrast ratio of 5.08:1 (passes WCAG AA for body text); on black it is 4.14:1 (fails). For text placed on #156CD5, use white for the best readability.

What is the closest Tailwind color to #156CD5?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #156CD5?

#156CD5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D57F15. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #156CD5 below.

Is #156CD5 good for buttons?

#156CD5 works well for buttons and highlights, but use white text on #156CD5 — black text only reaches 4.14:1, below the 4.5:1 needed for normal-size labels.

Is #156CD5 the same as CSS royalblue?

No — #156CD5 is not the CSS named color royalblue, but royalblue (#4169E1) is the closest CSS named color.

#156CD5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #156CD5

Not just a swatch — here's how #156CD5 works with other colors. Named schemes with #156CD5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #156CD5 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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

Tech Product Signal · 5 colors

Signal #156CD5 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4C93F4

True 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 True Blue.

Vintage Leather Lead · 5 colors

Lead #156CD5 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

True Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Berry & Cream Lead · 5 colors

Lead #156CD5 Surface #EDE9D6 Anchor #5A2145 Accent #E4C2CA Secondary #322B2F

True Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #156CD5 Secondary #819BC1 Support #9D8F89 Ink #16140F

True 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 True Blue carrying the quiet middle.

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Color Lab

How #156CD5 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 5/100

Cool

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

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 48/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 48/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 94/100

Very 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 64/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #156CD5

For UI

For branding

For interior

For fashion

People also use #156CD5 with

Turquoise Medium Blue Bronze Gainsboro Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 5.1:1. Use

Subtle surface Use #D3E2F4 for cards and hover fills. Tint 80

Avoid beside #152CD5 — 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 #156CD5 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: #156CD5;
  --color-base-rgb: 21 108 213;
  --color-base-oklch: oklch(54.4% 0.179 256.8);
  --color-50: #F0F7FE;
  --color-100: #D9E9FC;
  --color-200: #B5D3F8;
  --color-300: #83B2ED;
  --color-400: #5592DD;
  --color-500: #3273C3;
  --color-600: #2E5C94;
  --color-700: #264469;
  --color-800: #1D2E44;
  --color-900: #141D2A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  true-blue: {
    50: '#F0F7FE',
    100: '#D9E9FC',
    200: '#B5D3F8',
    300: '#83B2ED',
    400: '#5592DD',
    500: '#3273C3',
    600: '#2E5C94',
    700: '#264469',
    800: '#1D2E44',
    900: '#141D2A',
  },
}

$base: #156CD5;
$base-ink: #FFFFFF;
$base-50: #F0F7FE;
$base-100: #D9E9FC;
$base-200: #B5D3F8;
$base-300: #83B2ED;
$base-400: #5592DD;
$base-500: #3273C3;
$base-600: #2E5C94;
$base-700: #264469;
$base-800: #1D2E44;
$base-900: #141D2A;
$base-hover: #1156AB;
$base-subtle: #BCD3EF;

{
    "color": {
        "base": {
            "value": "#156CD5",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F7FE",
                "type": "color"
            },
            "100": {
                "value": "#D9E9FC",
                "type": "color"
            },
            "200": {
                "value": "#B5D3F8",
                "type": "color"
            },
            "300": {
                "value": "#83B2ED",
                "type": "color"
            },
            "400": {
                "value": "#5592DD",
                "type": "color"
            },
            "500": {
                "value": "#3273C3",
                "type": "color"
            },
            "600": {
                "value": "#2E5C94",
                "type": "color"
            },
            "700": {
                "value": "#264469",
                "type": "color"
            },
            "800": {
                "value": "#1D2E44",
                "type": "color"
            },
            "900": {
                "value": "#141D2A",
                "type": "color"
            }
        }
    }
}

Palettes built on #156CD5

Color Lab

Pairs with #156CD5

UI roles & guardrails

In real applications

Scales

Every model

Export