What color is #638C19?

#638C19 is a dark, vivid lime green. In RGB it is rgb(99, 140, 25), and in HSL hsl(81, 70%, 32%).

Is #638C19 accessible as text?

On white, #638C19 has a contrast ratio of 3.97:1 (fails WCAG AA for body text); on black it is 5.30:1 (passes). For text placed on #638C19, use black for the best readability.

What is the closest Tailwind color to #638C19?

The nearest Tailwind CSS token is lime-700 (#497D00).

What colors go well with #638C19?

#638C19 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #40188B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #638C19 below.

Is #638C19 good for buttons?

#638C19 works well for buttons and highlights, but use black text on #638C19 — white text only reaches 3.97:1, below the 4.5:1 needed for normal-size labels.

Is #638C19 the same as CSS olivedrab?

No — #638C19 is not the CSS named color olivedrab, but olivedrab (#6B8E23) is the closest CSS named color.

#638C19 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #638C19

Not just a swatch — here's how #638C19 works with other colors. Named schemes with #638C19 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #638C19 Secondary #AF6A00 Accent #6A7B4A Surface #F2ECDD Anchor #3A2B1E

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

Modern Café Dominant · 5 colors

Dominant #638C19 Anchor #392B1F Surface #EEE4D0 Accent #899A6B Secondary #3A3833

Olive Drab 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.

Vintage Leather Lead · 5 colors

Lead #638C19 Secondary #764D1D Surface #E6DBC0 Accent #3D513F Anchor #5B2324

Olive Drab plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Botanical Studio Lead · 5 colors

Lead #638C19 Secondary #4F6B39 Accent #AF6A00 Surface #EFE9D6 Anchor #3D2F21

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #638C19 Secondary #9EAE8C Support #999286 Ink #17140F

Olive Drab 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 Olive Drab carrying the quiet middle.

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Color Lab

How #638C19 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 59/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 42/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 98/100

Very high

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

Vintage feel 55/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 39/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 94/100

Very high

Strong interactive accent — visible and can carry a legible label.

Surface fit 17/100

Very low

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

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #638C19

For UI

For branding

For interior

For fashion

People also use #638C19 with

Dark Goldenrod Forest Green Indigo Platinum Army Green

UI roles & guardrails

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

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

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.7:1. Use

Subtle surface Use #E2EECB for cards and hover fills. Tint 80

Avoid beside #3D8B18 — 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 #638C19 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: #638C19;
  --color-base-rgb: 99 140 25;
  --color-base-oklch: oklch(58.8% 0.144 128.2);
  --color-50: #F9FDF1;
  --color-100: #EFFADB;
  --color-200: #DFF3BA;
  --color-300: #C5E58A;
  --color-400: #AAD35F;
  --color-500: #8DB83D;
  --color-600: #6E8C35;
  --color-700: #50642B;
  --color-800: #354120;
  --color-900: #212815;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  olive-drab: {
    50: '#F9FDF1',
    100: '#EFFADB',
    200: '#DFF3BA',
    300: '#C5E58A',
    400: '#AAD35F',
    500: '#8DB83D',
    600: '#6E8C35',
    700: '#50642B',
    800: '#354120',
    900: '#212815',
  },
}

$base: #638C19;
$base-ink: #141310;
$base-50: #F9FDF1;
$base-100: #EFFADB;
$base-200: #DFF3BA;
$base-300: #C5E58A;
$base-400: #AAD35F;
$base-500: #8DB83D;
$base-600: #6E8C35;
$base-700: #50642B;
$base-800: #354120;
$base-900: #212815;
$base-hover: #4F6F14;
$base-subtle: #D3E7AF;

{
    "color": {
        "base": {
            "value": "#638C19",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9FDF1",
                "type": "color"
            },
            "100": {
                "value": "#EFFADB",
                "type": "color"
            },
            "200": {
                "value": "#DFF3BA",
                "type": "color"
            },
            "300": {
                "value": "#C5E58A",
                "type": "color"
            },
            "400": {
                "value": "#AAD35F",
                "type": "color"
            },
            "500": {
                "value": "#8DB83D",
                "type": "color"
            },
            "600": {
                "value": "#6E8C35",
                "type": "color"
            },
            "700": {
                "value": "#50642B",
                "type": "color"
            },
            "800": {
                "value": "#354120",
                "type": "color"
            },
            "900": {
                "value": "#212815",
                "type": "color"
            }
        }
    }
}

Palettes built on #638C19

Color Lab

Pairs with #638C19

UI roles & guardrails

In real applications

Scales

Every model

Export