What color is #10158D?

#10158D is a dark, vivid blue. In RGB it is rgb(16, 21, 141), and in HSL hsl(238, 80%, 31%).

Is #10158D accessible as text?

On white, #10158D has a contrast ratio of 13.87:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #10158D, use white for the best readability.

What is the closest Tailwind color to #10158D?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #10158D?

#10158D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8E8A10. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #10158D below.

Is #10158D good for buttons?

#10158D works well for buttons and highlights, but use white text on #10158D — black text only reaches 1.51:1, below the 4.5:1 needed for normal-size labels.

Is #10158D the same as CSS darkblue?

No — #10158D is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#10158D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #10158D

Not just a swatch — here's how #10158D works with other colors. Named schemes with #10158D in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #10158D Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

Phthalo 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.

Tech Product Signal · 5 colors

Signal #10158D Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #2A44AB

Phthalo 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 Phthalo Blue.

Moody Editorial Color · 5 colors

Color #10158D Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #17004A

Phthalo 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 Phthalo Blue.

Coastal Morning Lead · 5 colors

Lead #10158D Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #10158D Secondary #46557B Support #9D8F88 Ink #18140F

Phthalo 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 Phthalo Blue carrying the quiet middle.

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Color Lab

How #10158D 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 10/100

Cool

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

Softness 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 20/100

Very low

Clean and current — no dusty, aged cast.

Luxury 67/100

High

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

Brand distinctiveness 72/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 41/100

Moderate

Workable accent with care around contrast.

Surface fit 20/100

Very low

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

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #10158D

For UI

For branding

For interior

For fashion

People also use #10158D with

True Blue Indigo Olive Gainsboro Prussian Blue

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 13.9:1. Use

Subtle surface Use #C8C9F0 for cards and hover fills. Tint 80

Avoid beside #36108E — 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 #10158D 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: #10158D;
  --color-base-rgb: 16 21 141;
  --color-base-oklch: oklch(31.4% 0.186 267.7);
  --color-50: #F1F1FE;
  --color-100: #D9DAFC;
  --color-200: #B6B8F7;
  --color-300: #8487EB;
  --color-400: #575BDB;
  --color-500: #3439C1;
  --color-600: #2F3293;
  --color-700: #272968;
  --color-800: #1D1F44;
  --color-900: #141429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F1F1FE',
    100: '#D9DAFC',
    200: '#B6B8F7',
    300: '#8487EB',
    400: '#575BDB',
    500: '#3439C1',
    600: '#2F3293',
    700: '#272968',
    800: '#1D1F44',
    900: '#141429',
  },
}

$base: #10158D;
$base-ink: #FFFFFF;
$base-50: #F1F1FE;
$base-100: #D9DAFC;
$base-200: #B6B8F7;
$base-300: #8487EB;
$base-400: #575BDB;
$base-500: #3439C1;
$base-600: #2F3293;
$base-700: #272968;
$base-800: #1D1F44;
$base-900: #141429;
$base-hover: #0D1072;
$base-subtle: #AAACEA;

{
    "color": {
        "base": {
            "value": "#10158D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F1FE",
                "type": "color"
            },
            "100": {
                "value": "#D9DAFC",
                "type": "color"
            },
            "200": {
                "value": "#B6B8F7",
                "type": "color"
            },
            "300": {
                "value": "#8487EB",
                "type": "color"
            },
            "400": {
                "value": "#575BDB",
                "type": "color"
            },
            "500": {
                "value": "#3439C1",
                "type": "color"
            },
            "600": {
                "value": "#2F3293",
                "type": "color"
            },
            "700": {
                "value": "#272968",
                "type": "color"
            },
            "800": {
                "value": "#1D1F44",
                "type": "color"
            },
            "900": {
                "value": "#141429",
                "type": "color"
            }
        }
    }
}

Palettes built on #10158D

Color Lab

Pairs with #10158D

UI roles & guardrails

In real applications

Scales

Every model

Export