What color is #99CA1E?

#99CA1E is a medium, vivid lime green. In RGB it is rgb(153, 202, 30), and in HSL hsl(77, 74%, 45%).

Is #99CA1E accessible as text?

On white, #99CA1E has a contrast ratio of 1.94:1 (fails WCAG AA for body text); on black it is 10.82:1 (passes). For text placed on #99CA1E, use black for the best readability.

What is the closest Tailwind color to #99CA1E?

The nearest Tailwind CSS token is lime-500 (#7CCF00).

What colors go well with #99CA1E?

#99CA1E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4E1EC8. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #99CA1E below.

Is #99CA1E good for buttons?

#99CA1E works well for buttons and highlights, but use black text on #99CA1E — white text only reaches 1.94:1, below the 4.5:1 needed for normal-size labels.

Is #99CA1E the same as CSS yellowgreen?

No — #99CA1E is not the CSS named color yellowgreen, but yellowgreen (#9ACD32) is the closest CSS named color.

#99CA1E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #99CA1E

Not just a swatch — here's how #99CA1E works with other colors. Named schemes with #99CA1E in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #99CA1E Secondary #AF6A00 Accent #6B7B4A Surface #F2ECDD Anchor #3A2B1E

This palette keeps Yellow Green 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 #99CA1E Secondary #4F6B39 Accent #AF6A00 Surface #EFE9D6 Anchor #3D2F21

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

Sunset Warmth Glow · 5 colors

Glow #99CA1E Secondary #E37535 Accent #DCA525 Anchor #5F394A Surface #F2EAD6

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

Japanese Sand Base · 5 colors

Base #99CA1E Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Yellow Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #99CA1E Secondary #D8ECBC Support #999286 Ink #17140F

Yellow Green 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 Yellow Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #99CA1E 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 62/100

Warm

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

Softness 49/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 24/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 47/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 27/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 32/100

Low

Workable accent with care around contrast.

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 60/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #99CA1E

For UI

For branding

For interior

For fashion

People also use #99CA1E with

Mustard Yellow Lime Green Grape 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 9.6:1. Use

Subtle surface Use #E9F2D4 for cards and hover fills. Tint 80

Avoid beside #5FC81E — 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 #99CA1E at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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: #99CA1E;
  --color-base-rgb: 153 202 30;
  --color-base-oklch: oklch(77.6% 0.189 125.7);
  --color-50: #FAFEF1;
  --color-100: #F2FBDB;
  --color-200: #E3F4B8;
  --color-300: #CCE788;
  --color-400: #B4D65C;
  --color-500: #97BC39;
  --color-600: #758F33;
  --color-700: #54652A;
  --color-800: #38421F;
  --color-900: #232915;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  yellow-green: {
    50: '#FAFEF1',
    100: '#F2FBDB',
    200: '#E3F4B8',
    300: '#CCE788',
    400: '#B4D65C',
    500: '#97BC39',
    600: '#758F33',
    700: '#54652A',
    800: '#38421F',
    900: '#232915',
  },
}

$base: #99CA1E;
$base-ink: #141310;
$base-50: #FAFEF1;
$base-100: #F2FBDB;
$base-200: #E3F4B8;
$base-300: #CCE788;
$base-400: #B4D65C;
$base-500: #97BC39;
$base-600: #758F33;
$base-700: #54652A;
$base-800: #38421F;
$base-900: #232915;
$base-hover: #79A018;
$base-subtle: #DFEDBD;

{
    "color": {
        "base": {
            "value": "#99CA1E",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAFEF1",
                "type": "color"
            },
            "100": {
                "value": "#F2FBDB",
                "type": "color"
            },
            "200": {
                "value": "#E3F4B8",
                "type": "color"
            },
            "300": {
                "value": "#CCE788",
                "type": "color"
            },
            "400": {
                "value": "#B4D65C",
                "type": "color"
            },
            "500": {
                "value": "#97BC39",
                "type": "color"
            },
            "600": {
                "value": "#758F33",
                "type": "color"
            },
            "700": {
                "value": "#54652A",
                "type": "color"
            },
            "800": {
                "value": "#38421F",
                "type": "color"
            },
            "900": {
                "value": "#232915",
                "type": "color"
            }
        }
    }
}

Palettes built on #99CA1E

Color Lab

Pairs with #99CA1E

UI roles & guardrails

In real applications

Scales

Every model

Export