What color is #63BF99?

#63BF99 is a medium teal-green. In RGB it is rgb(99, 191, 153), and in HSL hsl(155, 42%, 57%).

Is #63BF99 accessible as text?

On white, #63BF99 has a contrast ratio of 2.22:1 (fails WCAG AA for body text); on black it is 9.44:1 (passes). For text placed on #63BF99, use black for the best readability.

What is the closest Tailwind color to #63BF99?

The nearest Tailwind CSS token is teal-500 (#00BBA7).

What colors go well with #63BF99?

#63BF99 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF638A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #63BF99 below.

Is #63BF99 good for buttons?

#63BF99 works well for buttons and highlights, but use black text on #63BF99 — white text only reaches 2.22:1, below the 4.5:1 needed for normal-size labels.

Is #63BF99 the same as CSS mediumaquamarine?

No — #63BF99 is not the CSS named color mediumaquamarine, but mediumaquamarine (#66CDAA) is the closest CSS named color.

#63BF99 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #63BF99

Not just a swatch — here's how #63BF99 works with other colors. Named schemes with #63BF99 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #63BF99 Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

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

Coastal Morning Lead · 5 colors

Lead #63BF99 Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3548

Medium Aquamarine 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 #63BF99 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

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

Warm Autumn Interior Dominant · 5 colors

Dominant #63BF99 Secondary #AB6D00 Accent #657C4E Surface #F1EDDD Anchor #392B1E

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #63BF99 Secondary #C1DFD0 Support #989286 Ink #17140F

Medium Aquamarine 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 Medium Aquamarine carrying the quiet middle.

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Color Lab

How #63BF99 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 37/100

Cool

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

Softness 60/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 26/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 72/100

High

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

Vintage feel 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 34/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 41/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 45/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #63BF99

For UI

For branding

For interior

For fashion

People also use #63BF99 with

Pistachio Verdigris Rose Gold Platinum Dark Slate Gray

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 8.4:1. Use

Subtle surface Use #E2F0EA for cards and hover fills. Tint 80

Avoid beside #63BFB8 — 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 #63BF99 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: #63BF99;
  --color-base-rgb: 99 191 153;
  --color-base-oklch: oklch(73.7% 0.105 164.7);
  --color-50: #F4FBF8;
  --color-100: #E2F4EC;
  --color-200: #C5E7D9;
  --color-300: #9CD3BC;
  --color-400: #76BC9F;
  --color-500: #559F81;
  --color-600: #477B65;
  --color-700: #36584A;
  --color-800: #263B32;
  --color-900: #192420;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-aquamarine: {
    50: '#F4FBF8',
    100: '#E2F4EC',
    200: '#C5E7D9',
    300: '#9CD3BC',
    400: '#76BC9F',
    500: '#559F81',
    600: '#477B65',
    700: '#36584A',
    800: '#263B32',
    900: '#192420',
  },
}

$base: #63BF99;
$base-ink: #141310;
$base-50: #F4FBF8;
$base-100: #E2F4EC;
$base-200: #C5E7D9;
$base-300: #9CD3BC;
$base-400: #76BC9F;
$base-500: #559F81;
$base-600: #477B65;
$base-700: #36584A;
$base-800: #263B32;
$base-900: #192420;
$base-hover: #43A57C;
$base-subtle: #D4E9E0;

{
    "color": {
        "base": {
            "value": "#63BF99",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBF8",
                "type": "color"
            },
            "100": {
                "value": "#E2F4EC",
                "type": "color"
            },
            "200": {
                "value": "#C5E7D9",
                "type": "color"
            },
            "300": {
                "value": "#9CD3BC",
                "type": "color"
            },
            "400": {
                "value": "#76BC9F",
                "type": "color"
            },
            "500": {
                "value": "#559F81",
                "type": "color"
            },
            "600": {
                "value": "#477B65",
                "type": "color"
            },
            "700": {
                "value": "#36584A",
                "type": "color"
            },
            "800": {
                "value": "#263B32",
                "type": "color"
            },
            "900": {
                "value": "#192420",
                "type": "color"
            }
        }
    }
}

Palettes built on #63BF99

Color Lab

Pairs with #63BF99

UI roles & guardrails

In real applications

Scales

Every model

Export