What color is #311490?

#311490 is a dark, vivid indigo. In RGB it is rgb(49, 20, 144), and in HSL hsl(254, 76%, 32%).

Is #311490 accessible as text?

On white, #311490 has a contrast ratio of 12.86:1 (passes WCAG AA for body text); on black it is 1.63:1 (fails). For text placed on #311490, use white for the best readability.

What is the closest Tailwind color to #311490?

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

What colors go well with #311490?

#311490 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #739014. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #311490 below.

Is #311490 good for buttons?

#311490 works well for buttons and highlights, but use white text on #311490 — black text only reaches 1.63:1, below the 4.5:1 needed for normal-size labels.

Is #311490 the same as CSS indigo?

No — #311490 is not the CSS named color indigo, but indigo (#4B0082) 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.

#311490 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #311490

Not just a swatch — here's how #311490 works with other colors. Named schemes with #311490 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #311490 Anchor #141210 Accent #DB9758 Secondary #272833 Surface #F3ECE3

Indigo 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 #311490 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #25004B

Indigo 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 Indigo.

Coastal Morning Lead · 5 colors

Lead #311490 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Indigo 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 #311490 Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582238

Indigo 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 #311490 Secondary #575980 Support #9D9088 Ink #18140F

Indigo 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 Indigo carrying the quiet middle.

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Color Lab

How #311490 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 19/100

Cool

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

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 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 66/100

High

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

Brand distinctiveness 70/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 18/100

Very low

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

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #311490

For UI

For branding

For interior

For fashion

People also use #311490 with

Sapphire Blue Purple Olive Drab 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 12.9:1. Use

Subtle surface Use #D2C9EF for cards and hover fills. Tint 80

Avoid beside #5A1490 — 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 #311490 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: #311490;
  --color-base-rgb: 49 20 144;
  --color-base-oklch: oklch(33.8% 0.182 281.2);
  --color-50: #F4F1FE;
  --color-100: #E2DAFB;
  --color-200: #C6B7F5;
  --color-300: #9D87E9;
  --color-400: #775AD8;
  --color-500: #5737BD;
  --color-600: #483290;
  --color-700: #372966;
  --color-800: #271E43;
  --color-900: #191429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F4F1FE',
    100: '#E2DAFB',
    200: '#C6B7F5',
    300: '#9D87E9',
    400: '#775AD8',
    500: '#5737BD',
    600: '#483290',
    700: '#372966',
    800: '#271E43',
    900: '#191429',
  },
}

$base: #311490;
$base-ink: #FFFFFF;
$base-50: #F4F1FE;
$base-100: #E2DAFB;
$base-200: #C6B7F5;
$base-300: #9D87E9;
$base-400: #775AD8;
$base-500: #5737BD;
$base-600: #483290;
$base-700: #372966;
$base-800: #271E43;
$base-900: #191429;
$base-hover: #271073;
$base-subtle: #BBADE9;

{
    "color": {
        "base": {
            "value": "#311490",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F1FE",
                "type": "color"
            },
            "100": {
                "value": "#E2DAFB",
                "type": "color"
            },
            "200": {
                "value": "#C6B7F5",
                "type": "color"
            },
            "300": {
                "value": "#9D87E9",
                "type": "color"
            },
            "400": {
                "value": "#775AD8",
                "type": "color"
            },
            "500": {
                "value": "#5737BD",
                "type": "color"
            },
            "600": {
                "value": "#483290",
                "type": "color"
            },
            "700": {
                "value": "#372966",
                "type": "color"
            },
            "800": {
                "value": "#271E43",
                "type": "color"
            },
            "900": {
                "value": "#191429",
                "type": "color"
            }
        }
    }
}

Palettes built on #311490

Color Lab

Pairs with #311490

UI roles & guardrails

In real applications

Scales

Every model

Export