TwoColorPalette

Emerald and Cyan color palette

nearest CSS color: seagreen · 0.01

Fintech dashboards and SaaS marketing sites reach for this combination often. Emerald #1F8A5B carries the weight of money and confirmation states, while cyan #06B6D4 handles links, info badges, and active highlights. Together they read as modern, technical, and trustworthy without falling into corporate blue.

The two sit only 56 degrees apart, and the ratio between them is 1.79 to 1. That makes this a tonal pairing, not a foreground-on-background one. Use emerald and cyan side by side as accents on a white or near-black surface, and pull from their Tailwind 50-900 scales when you need text or borders that actually pass contrast. Their blended midpoint is a teal green (#14A198), useful for hover states between the two.

See Emerald and Cyan in use

Background ⇄ tap a mockup to swap colors
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Mobile screen
EmeraldCyan
Data dashboard
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Marketing hero
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Poster / type

Emerald Tailwind scale (50-900)

Cyan Tailwind scale (50-900)

Emerald to Cyan blend

A continuous interpolation from Emerald to Cyan, sampled into the 10 steps below. Tap any swatch to copy its hex.

Why Emerald and Cyan blend best in OKLab

The same two colors blended three ways. This site uses OKLab, which keeps the blend smooth and evenly lit. The other two are shown so you can see what to avoid: sRGB darkens and muddies the middle, and HSL detours through colors that are not in your palette.

OKLabsmooth, evenly lit (used here)
sRGBmuddy, darker middle
HSLdetours through other hues

Accessibility

AA large ✗AA normal ✗AAA ✗

Do not place Emerald text on Cyan (or the reverse) for body copy. For readable text, pair a dark scale step such as emerald-800 or cyan-900 with a light one like cyan-50.

Contrast pairing grid

Rows are Emerald steps, columns are Cyan steps. Each mark is a Emerald step shown on a Cyan step: a check means it clears WCAG AA for text (4.5:1). If you can read the mark, the pairing is legible.

50100200300400500600700800900
50
100
200
300
400
500
600
700
800
900

✓ passes AA ✗ fails AA

Copy for Tailwind

Tailwind v4 — @theme (paste into your CSS)
@theme {
  --color-emerald-50: #F3F8F5;
  --color-emerald-100: #E6F1EA;
  --color-emerald-200: #D1E5D9;
  --color-emerald-300: #B5D4C1;
  --color-emerald-400: #8DBEA2;
  --color-emerald-500: #1F8A5B;
  --color-emerald-600: #177049;
  --color-emerald-700: #0F5335;
  --color-emerald-800: #052F1C;
  --color-emerald-900: #011108;

  --color-cyan-50: #F4FBFD;
  --color-cyan-100: #E9F7FA;
  --color-cyan-200: #D7EFF6;
  --color-cyan-300: #BCE5F0;
  --color-cyan-400: #97D8E8;
  --color-cyan-500: #06B6D4;
  --color-cyan-600: #0494AD;
  --color-cyan-700: #026F83;
  --color-cyan-800: #01404C;
  --color-cyan-900: #001A20;
}
Tailwind v3 — tailwind.config.js
// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'emerald': {
        50: '#F3F8F5',
        100: '#E6F1EA',
        200: '#D1E5D9',
        300: '#B5D4C1',
        400: '#8DBEA2',
        500: '#1F8A5B',
        600: '#177049',
        700: '#0F5335',
        800: '#052F1C',
        900: '#011108',
        },
        'cyan': {
        50: '#F4FBFD',
        100: '#E9F7FA',
        200: '#D7EFF6',
        300: '#BCE5F0',
        400: '#97D8E8',
        500: '#06B6D4',
        600: '#0494AD',
        700: '#026F83',
        800: '#01404C',
        900: '#001A20',
        },
      },
    },
  },
};
CSS variables
:root {
  --emerald-50: #F3F8F5;
  --emerald-100: #E6F1EA;
  --emerald-200: #D1E5D9;
  --emerald-300: #B5D4C1;
  --emerald-400: #8DBEA2;
  --emerald-500: #1F8A5B;
  --emerald-600: #177049;
  --emerald-700: #0F5335;
  --emerald-800: #052F1C;
  --emerald-900: #011108;

  --cyan-50: #F4FBFD;
  --cyan-100: #E9F7FA;
  --cyan-200: #D7EFF6;
  --cyan-300: #BCE5F0;
  --cyan-400: #97D8E8;
  --cyan-500: #06B6D4;
  --cyan-600: #0494AD;
  --cyan-700: #026F83;
  --cyan-800: #01404C;
  --cyan-900: #001A20;
}
SCSS variables
$emerald-50: #F3F8F5;
$emerald-100: #E6F1EA;
$emerald-200: #D1E5D9;
$emerald-300: #B5D4C1;
$emerald-400: #8DBEA2;
$emerald-500: #1F8A5B;
$emerald-600: #177049;
$emerald-700: #0F5335;
$emerald-800: #052F1C;
$emerald-900: #011108;

$cyan-50: #F4FBFD;
$cyan-100: #E9F7FA;
$cyan-200: #D7EFF6;
$cyan-300: #BCE5F0;
$cyan-400: #97D8E8;
$cyan-500: #06B6D4;
$cyan-600: #0494AD;
$cyan-700: #026F83;
$cyan-800: #01404C;
$cyan-900: #001A20;
JSON tokens
{
  "emerald": {
    "50": "#F3F8F5",
    "100": "#E6F1EA",
    "200": "#D1E5D9",
    "300": "#B5D4C1",
    "400": "#8DBEA2",
    "500": "#1F8A5B",
    "600": "#177049",
    "700": "#0F5335",
    "800": "#052F1C",
    "900": "#011108"
  },
  "cyan": {
    "50": "#F4FBFD",
    "100": "#E9F7FA",
    "200": "#D7EFF6",
    "300": "#BCE5F0",
    "400": "#97D8E8",
    "500": "#06B6D4",
    "600": "#0494AD",
    "700": "#026F83",
    "800": "#01404C",
    "900": "#001A20"
  }
}

How we name colors

There is no single official authority for naming colors. We use the common, widely recognized name as the primary label for each color (here, Emerald and Cyan); many common names are themselves W3C CSS named colors. For transparency we also show the nearest W3C CSS named color and the perceptual distance, ΔE, measured in OKLab. A small ΔE means the name is essentially exact; a larger one means it is the closest standard name rather than a perfect match.

Sources: W3C CSS Color Module Level 4 and the open color-name-list dataset, used to verify every color sits near a recognized name.