What color is #170337?

#170337 is a very dark, vivid violet. In RGB it is rgb(23, 3, 55), and in HSL hsl(263, 90%, 11%).

Is #170337 accessible as text?

On white, #170337 has a contrast ratio of 19.01:1 (passes WCAG AA for body text); on black it is 1.10:1 (fails). For text placed on #170337, use white for the best readability.

What is the closest Tailwind color to #170337?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #170337?

#170337 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #223503. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #170337 below.

Is #170337 good for buttons?

#170337 works well for buttons and highlights, but use white text on #170337 — black text only reaches 1.10:1, below the 4.5:1 needed for normal-size labels.

Is #170337 the same as CSS midnightblue?

No — #170337 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#170337 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #170337

Not just a swatch — here's how #170337 works with other colors. Named schemes with #170337 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #170337 Anchor #141210 Accent #DA9856 Secondary #292732 Surface #F3ECE3

Deep Purple 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 #170337 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #04000A

Deep Purple 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 Deep Purple.

Coastal Morning Lead · 5 colors

Lead #170337 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334A

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

Berry & Cream Lead · 5 colors

Lead #170337 Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

Deep Purple 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 #170337 Secondary #353144 Support #9D9088 Ink #18140F

Deep Purple 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 Deep Purple carrying the quiet middle.

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Color Lab

How #170337 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 38/100

Cool

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

Softness 18/100

Very low

Firm and assertive — carries weight and contrast.

Depth 81/100

Very 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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 83/100

Very high

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 12/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #170337

For UI

For branding

For interior

For fashion

People also use #170337 with

Navy Deep Purple Sacramento Green Gainsboro Russian Violet

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 19.0:1. Use

Subtle surface Use #CBB4EF for cards and hover fills. Tint 80

Avoid beside #270335 — 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 #170337 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: #170337;
  --color-base-rgb: 23 3 55;
  --color-base-oklch: oklch(18.5% 0.093 293.3);
  --color-50: #F6F0FE;
  --color-100: #E6D8FD;
  --color-200: #CEB2FB;
  --color-300: #AA7EF2;
  --color-400: #884FE3;
  --color-500: #682BCA;
  --color-600: #542999;
  --color-700: #3F236C;
  --color-800: #2B1B46;
  --color-900: #1C122B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  deep-purple: {
    50: '#F6F0FE',
    100: '#E6D8FD',
    200: '#CEB2FB',
    300: '#AA7EF2',
    400: '#884FE3',
    500: '#682BCA',
    600: '#542999',
    700: '#3F236C',
    800: '#2B1B46',
    900: '#1C122B',
  },
}

$base: #170337;
$base-ink: #FFFFFF;
$base-50: #F6F0FE;
$base-100: #E6D8FD;
$base-200: #CEB2FB;
$base-300: #AA7EF2;
$base-400: #884FE3;
$base-500: #682BCA;
$base-600: #542999;
$base-700: #3F236C;
$base-800: #2B1B46;
$base-900: #1C122B;
$base-hover: #12022B;
$base-subtle: #B08CE9;

{
    "color": {
        "base": {
            "value": "#170337",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F0FE",
                "type": "color"
            },
            "100": {
                "value": "#E6D8FD",
                "type": "color"
            },
            "200": {
                "value": "#CEB2FB",
                "type": "color"
            },
            "300": {
                "value": "#AA7EF2",
                "type": "color"
            },
            "400": {
                "value": "#884FE3",
                "type": "color"
            },
            "500": {
                "value": "#682BCA",
                "type": "color"
            },
            "600": {
                "value": "#542999",
                "type": "color"
            },
            "700": {
                "value": "#3F236C",
                "type": "color"
            },
            "800": {
                "value": "#2B1B46",
                "type": "color"
            },
            "900": {
                "value": "#1C122B",
                "type": "color"
            }
        }
    }
}

Palettes built on #170337

Color Lab

Pairs with #170337

UI roles & guardrails

In real applications

Scales

Every model

Export