What color is #153299?

#153299 is a dark, vivid blue. In RGB it is rgb(21, 50, 153), and in HSL hsl(227, 76%, 34%).

Is #153299 accessible as text?

On white, #153299 has a contrast ratio of 10.78:1 (passes WCAG AA for body text); on black it is 1.95:1 (fails). For text placed on #153299, use white for the best readability.

What is the closest Tailwind color to #153299?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #153299?

#153299 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #997C15. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #153299 below.

Is #153299 good for buttons?

#153299 works well for buttons and highlights, but use white text on #153299 — black text only reaches 1.95:1, below the 4.5:1 needed for normal-size labels.

Is #153299 the same as CSS darkslateblue?

No — #153299 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#153299 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #153299

Not just a swatch — here's how #153299 works with other colors. Named schemes with #153299 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #153299 Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

Egyptian Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #153299 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #201058

Egyptian Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Egyptian Blue.

Coastal Morning Lead · 5 colors

Lead #153299 Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Vintage Leather Lead · 5 colors

Lead #153299 Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Egyptian 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #153299 Secondary #57678A Support #9D8F88 Ink #18140F

Egyptian 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 Egyptian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #153299 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 9/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 66/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 63/100

High

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

Surface fit 16/100

Very low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #153299

For UI

For branding

For interior

For fashion

People also use #153299 with

Bondi Blue Indigo Olive Gainsboro Gunmetal Gray

UI roles & guardrails

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

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 10.8:1. Use

Subtle surface Use #CBD3F0 for cards and hover fills. Tint 80

Avoid beside #241599 — 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 #153299 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: #153299;
  --color-base-rgb: 21 50 153;
  --color-base-oklch: oklch(37.4% 0.171 265.7);
  --color-50: #F1F4FE;
  --color-100: #DAE1FB;
  --color-200: #B7C5F5;
  --color-300: #879CE9;
  --color-400: #5A75D8;
  --color-500: #3754BD;
  --color-600: #324690;
  --color-700: #293666;
  --color-800: #1E2643;
  --color-900: #141929;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F1F4FE',
    100: '#DAE1FB',
    200: '#B7C5F5',
    300: '#879CE9',
    400: '#5A75D8',
    500: '#3754BD',
    600: '#324690',
    700: '#293666',
    800: '#1E2643',
    900: '#141929',
  },
}

$base: #153299;
$base-ink: #FFFFFF;
$base-50: #F1F4FE;
$base-100: #DAE1FB;
$base-200: #B7C5F5;
$base-300: #879CE9;
$base-400: #5A75D8;
$base-500: #3754BD;
$base-600: #324690;
$base-700: #293666;
$base-800: #1E2643;
$base-900: #141929;
$base-hover: #11277A;
$base-subtle: #AFBCEA;

{
    "color": {
        "base": {
            "value": "#153299",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FE",
                "type": "color"
            },
            "100": {
                "value": "#DAE1FB",
                "type": "color"
            },
            "200": {
                "value": "#B7C5F5",
                "type": "color"
            },
            "300": {
                "value": "#879CE9",
                "type": "color"
            },
            "400": {
                "value": "#5A75D8",
                "type": "color"
            },
            "500": {
                "value": "#3754BD",
                "type": "color"
            },
            "600": {
                "value": "#324690",
                "type": "color"
            },
            "700": {
                "value": "#293666",
                "type": "color"
            },
            "800": {
                "value": "#1E2643",
                "type": "color"
            },
            "900": {
                "value": "#141929",
                "type": "color"
            }
        }
    }
}

Palettes built on #153299

Color Lab

Pairs with #153299

UI roles & guardrails

In real applications

Scales

Every model

Export