What color is #455CA0?

#455CA0 is a medium blue. In RGB it is rgb(69, 92, 160), and in HSL hsl(225, 40%, 45%).

Is #455CA0 accessible as text?

On white, #455CA0 has a contrast ratio of 6.38:1 (passes WCAG AA for body text); on black it is 3.29:1 (fails). For text placed on #455CA0, use white for the best readability.

What is the closest Tailwind color to #455CA0?

The nearest Tailwind CSS token is sky-700 (#0069A8).

What colors go well with #455CA0?

#455CA0 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A18A45. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #455CA0 below.

Is #455CA0 good for buttons?

#455CA0 works well for buttons and highlights, but use white text on #455CA0 — black text only reaches 3.29:1, below the 4.5:1 needed for normal-size labels.

Is #455CA0 the same as CSS darkslateblue?

No — #455CA0 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#455CA0 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #455CA0

Not just a swatch — here's how #455CA0 works with other colors. Named schemes with #455CA0 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #455CA0 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Lapis Lazuli 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 #455CA0 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #6980C0

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

Vintage Leather Lead · 5 colors

Lead #455CA0 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

Lapis Lazuli 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 #455CA0 Surface #F6E5D8 Anchor #5B2143 Accent #E5C2CA Secondary #322B2F

Lapis Lazuli 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 #455CA0 Secondary #7F89A2 Support #9D8F88 Ink #18140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #455CA0 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 24/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 51/100

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 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

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

Brand distinctiveness 30/100

Low

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 19/100

Very low

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

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #455CA0

For UI

For branding

For interior

For fashion

People also use #455CA0 with

Cadet Blue Rebecca Purple Dark Goldenrod 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 6.4:1. Use

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

Avoid beside #4D45A1 — 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 #455CA0 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #455CA0;
  --color-base-rgb: 69 92 160;
  --color-base-oklch: oklch(49.0% 0.113 268.0);
  --color-50: #F4F6FB;
  --color-100: #E2E6F3;
  --color-200: #C6CEE6;
  --color-300: #9EABD1;
  --color-400: #7888BA;
  --color-500: #57699E;
  --color-600: #48547A;
  --color-700: #373F58;
  --color-800: #272C3A;
  --color-900: #191C24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F4F6FB',
    100: '#E2E6F3',
    200: '#C6CEE6',
    300: '#9EABD1',
    400: '#7888BA',
    500: '#57699E',
    600: '#48547A',
    700: '#373F58',
    800: '#272C3A',
    900: '#191C24',
  },
}

$base: #455CA0;
$base-ink: #FFFFFF;
$base-50: #F4F6FB;
$base-100: #E2E6F3;
$base-200: #C6CEE6;
$base-300: #9EABD1;
$base-400: #7888BA;
$base-500: #57699E;
$base-600: #48547A;
$base-700: #373F58;
$base-800: #272C3A;
$base-900: #191C24;
$base-hover: #374981;
$base-subtle: #C8CFE2;

{
    "color": {
        "base": {
            "value": "#455CA0",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F6FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E6F3",
                "type": "color"
            },
            "200": {
                "value": "#C6CEE6",
                "type": "color"
            },
            "300": {
                "value": "#9EABD1",
                "type": "color"
            },
            "400": {
                "value": "#7888BA",
                "type": "color"
            },
            "500": {
                "value": "#57699E",
                "type": "color"
            },
            "600": {
                "value": "#48547A",
                "type": "color"
            },
            "700": {
                "value": "#373F58",
                "type": "color"
            },
            "800": {
                "value": "#272C3A",
                "type": "color"
            },
            "900": {
                "value": "#191C24",
                "type": "color"
            }
        }
    }
}

Palettes built on #455CA0

Color Lab

Pairs with #455CA0

UI roles & guardrails

In real applications

Scales

Every model

Export