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SeaGreen and SlateGray

Contrasting color combination with 1.05:1 contrast ratio

#2E8B57
#708090

Color Values

SeaGreen
HEX #2E8B57
RGB 46, 139, 87
HSL 146, 50%, 36%
SlateGray
HEX #708090
RGB 112, 128, 144
HSL 210, 13%, 50%

Harmony: Contrasting

These colors sit far enough apart on the wheel to create clear contrast without falling into a named harmony. The pairing works through difference rather than relationship, which suits designs that want variety over cohesion.

The hue angle between SeaGreen and SlateGray is 64 degrees. You can explore these relationships interactively in our Color Wheel Tool.

WCAG Contrast

1.05:1
SeaGreen background with SlateGray text
Below AA — decorative use only

UI Preview

SeaGreen surface

Sample text on a seagreen background demonstrates readability and visual hierarchy.

SlateGray surface

Sample text on a slategray background demonstrates readability and visual hierarchy.

Design Tokens

CSS Variables

:root {
  --color-a: #2E8B57;
  --color-b: #708090;
  --color-a-rgb: 46, 139, 87;
  --color-b-rgb: 112, 128, 144;
}

JSON

{
  "name": "SeaGreen and SlateGray",
  "colors": [
    {
      "name": "SeaGreen",
      "hex": "#2E8B57",
      "rgb": [
        46,
        139,
        87
      ]
    },
    {
      "name": "SlateGray",
      "hex": "#708090",
      "rgb": [
        112,
        128,
        144
      ]
    }
  ],
  "harmony": "Contrasting",
  "contrastRatio": 1.05
}

Explore These Colors

Frequently Asked Questions

Do seagreen and slategray go together?

Yes. SeaGreen and SlateGray form a contrasting color combination. These colors sit far enough apart on the wheel to create clear contrast without falling into a named harmony. The pairing works through difference rather than relationship, which suits designs that want variety over cohesion. The pairing has a WCAG contrast ratio of 1.05:1, which is below the AA threshold for text — use it for decorative purposes rather than text readability.

What is the contrast ratio between seagreen and slategray?

The WCAG 2.1 contrast ratio between SeaGreen (#2E8B57) and SlateGray (#708090) is 1.05:1. This ratio is below AA. Use the pairing for backgrounds, borders, and decorative elements rather than text-on-background combinations.

How do I use seagreen and slategray in design?

A safe starting point is the 60/30/10 rule: give one color about 60 percent of the surface area, the other about 30 percent, and reserve the remaining 10 percent for an accent or neutral. If one color is significantly darker, use it for text or structural elements and the lighter one for backgrounds. Test the result with our Contrast Checker if text is involved.

What are the hex and RGB values for seagreen and slategray?

SeaGreen has the hex code #2E8B57 and RGB values rgb(46, 139, 87). SlateGray has the hex code #708090 and RGB values rgb(112, 128, 144). You can copy these directly into CSS or use the design tokens provided on this page.