#518181 Color
#518181 is rgb(81, 129, 129) in RGB, hsl(180, 23%, 41%) in HSL, and about cmyk(37%, 0%, 0%, 49%) in CMYK. It has no registered color name of its own — the closest is Steel Teal (#5F8A8F), clearly related but distinguishable side by side at ΔE 5.19. Black text is the more readable choice on this background.
#518181rgb(81, 129, 129)hsl(180, 23%, 41%)hsv(180, 37%, 51%)cmyk(37%, 0%, 0%, 49%)oklch(56.9% 0.052 195.8)lab(50.57% -16.94 -5.45)lch(50.57% 17.79 197.84)What #518181 Is Called
Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #518181, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.
Browse the full index of named colors A-Z or every teal in the library.
#518181 Channel Values
How #518181 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.
| Model | Channels | Notes |
|---|---|---|
| RGB | R 81 · G 129 · B 129 | 8-bit channels as sent to the display |
| HSL | H 180° · S 23% · L 41% | Easiest model for building lighter and darker variants |
| HSV | H 180° · S 37% · V 51% | Matches the picker in most design tools |
| CMYK | C 37% · M 0% · Y 0% · K 49% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 4.37:1 vs white · 4.81:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #518181 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.
Need a specific ratio against another background? Open #518181 in the contrast checker.
Colors That Go With #518181
Pairings derived from color-wheel relationships. The complementary color sits opposite #518181; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.
Tints & Shades of #518181
Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.
Want a full 50-950 ramp with semantic roles? Generate design tokens from #518181.
How #518181 Looks with Color Vision Deficiency
Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.
#518181#7A7A81#6C7D81#747482#687982#518181#518181#797979Using #518181 in Code
Copy-ready declarations for the places this color usually ends up.
--color-518181: #518181;background-color: #518181;colors: { 'color-518181': '#518181' }Color(red: 0.318, green: 0.506, blue: 0.506)<color name="color_518181">#518181</color>fill="#518181"More Teal Colors
#518181 sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.
#518181 Frequently Asked Questions
What color is #518181?
#518181 is a mid-tone teal — rgb(81, 129, 129) in RGB and hsl(180, 23%, 41%) in HSL. It carries no registered color name of its own; the closest named color is Steel Teal (#5F8A8F), which is clearly related but distinguishable side by side at a CIE76 distance of 5.19.
What is the RGB value of #518181?
#518181 is rgb(81, 129, 129) — red 81, green 129, and blue 129 on the 0-255 scale.
What is the CMYK value of #518181?
#518181 converts to approximately cmyk(37%, 0%, 0%, 49%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #518181 be black or white?
Black text is the more readable choice. #518181 scores 4.37:1 against white and 4.81:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #518181 as a CSS color keyword?
No. #518181 is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is cadetblue (#5F9EA0) at a CIE76 distance of 11.3, which is visibly different.
Open #518181 in a Tool
Keep exploring: every teal in the color library, the guide to shades of teal, or the full color library.