What color is #2A00A8?

#2A00A8 is a dark, vivid indigo. In RGB it is rgb(42, 0, 168), and in HSL hsl(255, 100%, 33%).

Is #2A00A8 accessible as text?

On white, #2A00A8 has a contrast ratio of 12.62:1 (passes WCAG AA for body text); on black it is 1.66:1 (fails). For text placed on #2A00A8, use white for the best readability.

What is the closest Tailwind color to #2A00A8?

The nearest Tailwind CSS token is indigo-800 (#372AAC).

What colors go well with #2A00A8?

#2A00A8 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7EA800. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2A00A8 below.

Is #2A00A8 good for buttons?

#2A00A8 works well for buttons and highlights, but use white text on #2A00A8 — black text only reaches 1.66:1, below the 4.5:1 needed for normal-size labels.

Is #2A00A8 the same as CSS mediumblue?

No — #2A00A8 is not the CSS named color mediumblue, but mediumblue (#0000CD) is the closest CSS named color.

#2A00A8 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2A00A8

Not just a swatch — here's how #2A00A8 works with other colors. Named schemes with #2A00A8 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #2A00A8 Anchor #141210 Accent #DC9659 Secondary #262833 Surface #F3ECE3

Zaffre 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 #2A00A8 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #26005B

Zaffre 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 Zaffre.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #2A00A8 Secondary #545C8C Support #9D9088 Ink #18140F

Zaffre 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 Zaffre carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #2A00A8 Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #21344A

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

Sunset Warmth Glow · 5 colors

Glow #2A00A8 Secondary #E86A72 Accent #F6924E Anchor #573B58 Surface #F7E7D7

Zaffre glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #2A00A8 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 15/100

Cool

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

Softness 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

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 14/100

Very low

Clean and current — no dusty, aged cast.

Luxury 61/100

High

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

Brand distinctiveness 85/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 44/100

Moderate

Workable accent with care around contrast.

Surface fit 17/100

Very low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #2A00A8

For UI

For branding

For interior

For fashion

People also use #2A00A8 with

Sapphire Blue Mauveine 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 12.6:1. Use

Subtle surface Use #D1C4F5 for cards and hover fills. Tint 80

Avoid beside #6200A8 — 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 #2A00A8 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: #2A00A8;
  --color-base-rgb: 42 0 168;
  --color-base-oklch: oklch(34.9% 0.219 275.2);
  --color-50: #F4F0FE;
  --color-100: #E1D8FD;
  --color-200: #C3B1FC;
  --color-300: #9777F8;
  --color-400: #7046EC;
  --color-500: #4E22D2;
  --color-600: #42239F;
  --color-700: #331F70;
  --color-800: #241848;
  --color-900: #18112C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  zaffre: {
    50: '#F4F0FE',
    100: '#E1D8FD',
    200: '#C3B1FC',
    300: '#9777F8',
    400: '#7046EC',
    500: '#4E22D2',
    600: '#42239F',
    700: '#331F70',
    800: '#241848',
    900: '#18112C',
  },
}

$base: #2A00A8;
$base-ink: #FFFFFF;
$base-50: #F4F0FE;
$base-100: #E1D8FD;
$base-200: #C3B1FC;
$base-300: #9777F8;
$base-400: #7046EC;
$base-500: #4E22D2;
$base-600: #42239F;
$base-700: #331F70;
$base-800: #241848;
$base-900: #18112C;
$base-hover: #220087;
$base-subtle: #B8A5F3;

{
    "color": {
        "base": {
            "value": "#2A00A8",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F0FE",
                "type": "color"
            },
            "100": {
                "value": "#E1D8FD",
                "type": "color"
            },
            "200": {
                "value": "#C3B1FC",
                "type": "color"
            },
            "300": {
                "value": "#9777F8",
                "type": "color"
            },
            "400": {
                "value": "#7046EC",
                "type": "color"
            },
            "500": {
                "value": "#4E22D2",
                "type": "color"
            },
            "600": {
                "value": "#42239F",
                "type": "color"
            },
            "700": {
                "value": "#331F70",
                "type": "color"
            },
            "800": {
                "value": "#241848",
                "type": "color"
            },
            "900": {
                "value": "#18112C",
                "type": "color"
            }
        }
    }
}

Palettes built on #2A00A8

Color Lab

Pairs with #2A00A8

UI roles & guardrails

In real applications

Scales

Every model

Export