What color is #159CA5?

#159CA5 is a dark, vivid cyan. In RGB it is rgb(21, 156, 165), and in HSL hsl(184, 77%, 36%).

Is #159CA5 accessible as text?

On white, #159CA5 has a contrast ratio of 3.32:1 (fails WCAG AA for body text); on black it is 6.33:1 (passes). For text placed on #159CA5, use black for the best readability.

What is the closest Tailwind color to #159CA5?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #159CA5?

#159CA5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A21F15. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #159CA5 below.

Is #159CA5 good for buttons?

#159CA5 works well for buttons and highlights, but use black text on #159CA5 — white text only reaches 3.32:1, below the 4.5:1 needed for normal-size labels.

Is #159CA5 the same as CSS cadetblue?

No — #159CA5 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#159CA5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #159CA5

Not just a swatch — here's how #159CA5 works with other colors. Named schemes with #159CA5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #159CA5 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Bondi 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 #159CA5 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #159CA5 Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #5CC0C8

Bondi 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 Bondi Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #159CA5 Secondary #9BBCBF Support #979286 Ink #16140F

Bondi 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 Bondi Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #159CA5 Anchor #372C1D Surface #EBE5D0 Accent #809D73 Secondary #3A3933

Bondi 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 #159CA5 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 23/100

Cool

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

Softness 52/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

Low

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

Naturalness 9/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 50/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 40/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 79/100

High

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

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #159CA5

For UI

For branding

For interior

For fashion

People also use #159CA5 with

Emerald Green Cobalt Blue Cherry Red Platinum Dark Slate Gray

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 5.6:1. Use

Subtle surface Use #CCEEF0 for cards and hover fills. Tint 80

Avoid beside #156AA2 — 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 #159CA5 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: #159CA5;
  --color-base-rgb: 21 156 165;
  --color-base-oklch: oklch(63.2% 0.104 202.3);
  --color-50: #F1FDFE;
  --color-100: #DAF9FB;
  --color-200: #B7F1F5;
  --color-300: #86E3E9;
  --color-400: #59D0D9;
  --color-500: #37B5BE;
  --color-600: #318A91;
  --color-700: #286266;
  --color-800: #1E4043;
  --color-900: #142829;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F1FDFE',
    100: '#DAF9FB',
    200: '#B7F1F5',
    300: '#86E3E9',
    400: '#59D0D9',
    500: '#37B5BE',
    600: '#318A91',
    700: '#286266',
    800: '#1E4043',
    900: '#142829',
  },
}

$base: #159CA5;
$base-ink: #141310;
$base-50: #F1FDFE;
$base-100: #DAF9FB;
$base-200: #B7F1F5;
$base-300: #86E3E9;
$base-400: #59D0D9;
$base-500: #37B5BE;
$base-600: #318A91;
$base-700: #286266;
$base-800: #1E4043;
$base-900: #142829;
$base-hover: #117A82;
$base-subtle: #B1E7EB;

{
    "color": {
        "base": {
            "value": "#159CA5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF9FB",
                "type": "color"
            },
            "200": {
                "value": "#B7F1F5",
                "type": "color"
            },
            "300": {
                "value": "#86E3E9",
                "type": "color"
            },
            "400": {
                "value": "#59D0D9",
                "type": "color"
            },
            "500": {
                "value": "#37B5BE",
                "type": "color"
            },
            "600": {
                "value": "#318A91",
                "type": "color"
            },
            "700": {
                "value": "#286266",
                "type": "color"
            },
            "800": {
                "value": "#1E4043",
                "type": "color"
            },
            "900": {
                "value": "#142829",
                "type": "color"
            }
        }
    }
}

Palettes built on #159CA5

Color Lab

Pairs with #159CA5

UI roles & guardrails

In real applications

Scales

Every model

Export