What color is #999EEF?

#999EEF is a light, vivid blue-violet. In RGB it is rgb(153, 158, 239), and in HSL hsl(237, 73%, 77%).

Is #999EEF accessible as text?

On white, #999EEF has a contrast ratio of 2.47:1 (fails WCAG AA for body text); on black it is 8.49:1 (passes). For text placed on #999EEF, use black for the best readability.

What is the closest Tailwind color to #999EEF?

The nearest Tailwind CSS token is indigo-300 (#A3B3FF).

What colors go well with #999EEF?

#999EEF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EFEB9A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #999EEF below.

Is #999EEF good for buttons?

#999EEF works well for buttons and highlights, but use black text on #999EEF — white text only reaches 2.47:1, below the 4.5:1 needed for normal-size labels.

Is #999EEF the same as CSS cornflowerblue?

No — #999EEF is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#999EEF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #999EEF

Not just a swatch — here's how #999EEF works with other colors. Named schemes with #999EEF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #999EEF Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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

Nordic Calm Accent · 5 colors

Accent #999EEF Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Cornflower Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #999EEF Secondary #CED1EF Support #9D9088 Ink #18140F

Cornflower 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 Cornflower Blue carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #999EEF Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #BFC5FF

Cornflower 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 Cornflower Blue.

Modern Café Dominant · 5 colors

Dominant #999EEF Anchor #3B2923 Surface #F3E1D2 Accent #759F7B Secondary #3C3734

Cornflower Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #999EEF 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 28/100

Cool

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

Softness 57/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 28/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 35/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 45/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #999EEF

For UI

For branding

For interior

For fashion

People also use #999EEF with

Powder Blue Wisteria Pale Goldenrod Gainsboro Prussian Blue

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

Body text Do not use for body copy on light surfaces. Avoid

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 7.5:1. Use

Subtle surface Use #EDEEF9 for cards and hover fills. Tint 80

Avoid beside #B29AEF — 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 #999EEF 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: #999EEF;
  --color-base-rgb: 153 158 239;
  --color-base-oklch: oklch(72.7% 0.117 280.4);
  --color-50: #F1F2FD;
  --color-100: #DBDCFA;
  --color-200: #B9BBF4;
  --color-300: #888DE7;
  --color-400: #5D63D5;
  --color-500: #3A41BB;
  --color-600: #33388E;
  --color-700: #2A2D65;
  --color-800: #1F2142;
  --color-900: #151628;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cornflower-blue: {
    50: '#F1F2FD',
    100: '#DBDCFA',
    200: '#B9BBF4',
    300: '#888DE7',
    400: '#5D63D5',
    500: '#3A41BB',
    600: '#33388E',
    700: '#2A2D65',
    800: '#1F2142',
    900: '#151628',
  },
}

$base: #999EEF;
$base-ink: #141310;
$base-50: #F1F2FD;
$base-100: #DBDCFA;
$base-200: #B9BBF4;
$base-300: #888DE7;
$base-400: #5D63D5;
$base-500: #3A41BB;
$base-600: #33388E;
$base-700: #2A2D65;
$base-800: #1F2142;
$base-900: #151628;
$base-hover: #565DE5;
$base-subtle: #E4E5F7;

{
    "color": {
        "base": {
            "value": "#999EEF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F2FD",
                "type": "color"
            },
            "100": {
                "value": "#DBDCFA",
                "type": "color"
            },
            "200": {
                "value": "#B9BBF4",
                "type": "color"
            },
            "300": {
                "value": "#888DE7",
                "type": "color"
            },
            "400": {
                "value": "#5D63D5",
                "type": "color"
            },
            "500": {
                "value": "#3A41BB",
                "type": "color"
            },
            "600": {
                "value": "#33388E",
                "type": "color"
            },
            "700": {
                "value": "#2A2D65",
                "type": "color"
            },
            "800": {
                "value": "#1F2142",
                "type": "color"
            },
            "900": {
                "value": "#151628",
                "type": "color"
            }
        }
    }
}

Palettes built on #999EEF

Color Lab

Pairs with #999EEF

UI roles & guardrails

In real applications

Scales

Every model

Export