What color is #EFF783?

#EFF783 is a light, vivid yellow. In RGB it is rgb(239, 247, 131), and in HSL hsl(64, 88%, 74%).

Is #EFF783 accessible as text?

On white, #EFF783 has a contrast ratio of 1.15:1 (fails WCAG AA for body text); on black it is 18.30:1 (passes). For text placed on #EFF783, use black for the best readability.

What is the closest Tailwind color to #EFF783?

The nearest Tailwind CSS token is yellow-200 (#FFF085).

What colors go well with #EFF783?

#EFF783 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A82F7. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #EFF783 below.

Is #EFF783 good for buttons?

#EFF783 works well for buttons and highlights, but use black text on #EFF783 — white text only reaches 1.15:1, below the 4.5:1 needed for normal-size labels.

Is #EFF783 the same as CSS khaki?

No — #EFF783 is not the CSS named color khaki, but khaki (#F0E68C) is the closest CSS named color.

#EFF783 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #EFF783

Not just a swatch — here's how #EFF783 works with other colors. Named schemes with #EFF783 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #EFF783 Secondary #B06907 Accent #6D7B49 Surface #F2ECDD Anchor #3A2B1F

This palette keeps Butter Yellow as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Botanical Studio Lead · 5 colors

Lead #EFF783 Secondary #516A37 Accent #B06907 Surface #EFE9D6 Anchor #3D2F21

Butter Yellow leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Desert Clay Center · 5 colors

Center #EFF783 Surface #DFD0A8 Secondary #AD7C50 Accent #8F9A71 Anchor #3D2D1F

Butter Yellow holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Coastal Morning Lead · 5 colors

Lead #EFF783 Accent #A9C4B8 Surface #E3D8BE Secondary #9AA09F Anchor #183647

Butter Yellow 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 #F7F4EF Accent #EFF783 Secondary #FAFED9 Support #999186 Ink #17140F

Butter Yellow 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 Butter Yellow carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #EFF783 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 69/100

Warm

Reads warm and advancing — inviting, energetic, draws the eye forward.

Softness 68/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 6/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 78/100

High

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 9/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 54/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 5/100

Very low

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

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #EFF783

For UI

For branding

For interior

For fashion

People also use #EFF783 with

Apricot Mint Green Cornflower Blue Platinum Army Green

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 16.2:1. Use

Subtle surface Use #F9FAE9 for cards and hover fills. Tint 80

Avoid beside #C8F782 — 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 #EFF783 at work across the surfaces designers actually ship.

Website / UI

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A working theme, generated in seconds.

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: #EFF783;
  --color-base-rgb: 239 247 131;
  --color-base-oklch: oklch(94.6% 0.140 112.3);
  --color-50: #FDFEF0;
  --color-100: #FBFDD8;
  --color-200: #F5FAB2;
  --color-300: #E9F07F;
  --color-400: #D8E250;
  --color-500: #BEC82D;
  --color-600: #90982A;
  --color-700: #666B24;
  --color-800: #43461B;
  --color-900: #292B13;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  butter-yellow: {
    50: '#FDFEF0',
    100: '#FBFDD8',
    200: '#F5FAB2',
    300: '#E9F07F',
    400: '#D8E250',
    500: '#BEC82D',
    600: '#90982A',
    700: '#666B24',
    800: '#43461B',
    900: '#292B13',
  },
}

$base: #EFF783;
$base-ink: #141310;
$base-50: #FDFEF0;
$base-100: #FBFDD8;
$base-200: #F5FAB2;
$base-300: #E9F07F;
$base-400: #D8E250;
$base-500: #BEC82D;
$base-600: #90982A;
$base-700: #666B24;
$base-800: #43461B;
$base-900: #292B13;
$base-hover: #E6F33B;
$base-subtle: #F7F8DE;

{
    "color": {
        "base": {
            "value": "#EFF783",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FDFEF0",
                "type": "color"
            },
            "100": {
                "value": "#FBFDD8",
                "type": "color"
            },
            "200": {
                "value": "#F5FAB2",
                "type": "color"
            },
            "300": {
                "value": "#E9F07F",
                "type": "color"
            },
            "400": {
                "value": "#D8E250",
                "type": "color"
            },
            "500": {
                "value": "#BEC82D",
                "type": "color"
            },
            "600": {
                "value": "#90982A",
                "type": "color"
            },
            "700": {
                "value": "#666B24",
                "type": "color"
            },
            "800": {
                "value": "#43461B",
                "type": "color"
            },
            "900": {
                "value": "#292B13",
                "type": "color"
            }
        }
    }
}

Palettes built on #EFF783

Color Lab

Pairs with #EFF783

UI roles & guardrails

In real applications

Scales

Every model

Export