#659F91 Color
#659F91 is rgb(101, 159, 145) in RGB, hsl(166, 23%, 51%) in HSL, and about cmyk(36%, 0%, 9%, 38%) in CMYK. It has no registered color name of its own — the closest is Polished Pine (#5DA493), very hard to tell apart at ΔE 4.45. Black text is the more readable choice on this background.
#659F91rgb(101, 159, 145)hsl(166, 23%, 51%)hsv(166, 36%, 62%)cmyk(36%, 0%, 9%, 38%)oklch(65.8% 0.065 177.2)lab(61.19% -22.28 1.00)lch(61.19% 22.31 177.42)What #659F91 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 #659F91, 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 green in the library.
#659F91 Channel Values
How #659F91 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 101 · G 159 · B 145 | 8-bit channels as sent to the display |
| HSL | H 166° · S 23% · L 51% | Easiest model for building lighter and darker variants |
| HSV | H 166° · S 36% · V 62% | Matches the picker in most design tools |
| CMYK | C 36% · M 0% · Y 9% · K 38% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 3.03:1 vs white · 6.92:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #659F91 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 #659F91 in the contrast checker.
Colors That Go With #659F91
Pairings derived from color-wheel relationships. The complementary color sits opposite #659F91; 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 #659F91
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 #659F91.
How #659F91 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.
#659F91#979791#869A91#8F8F92#809692#689D9D#679E99#949494Using #659F91 in Code
Copy-ready declarations for the places this color usually ends up.
--color-659f91: #659F91;background-color: #659F91;colors: { 'color-659f91': '#659F91' }Color(red: 0.396, green: 0.624, blue: 0.569)<color name="color_659f91">#659F91</color>fill="#659F91"More Green Colors
#659F91 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#659F91 Frequently Asked Questions
What color is #659F91?
#659F91 is a mid-tone green — rgb(101, 159, 145) in RGB and hsl(166, 23%, 51%) in HSL. It carries no registered color name of its own; the closest named color is Polished Pine (#5DA493), which is very hard to tell apart at a CIE76 distance of 4.45.
What is the RGB value of #659F91?
#659F91 is rgb(101, 159, 145) — red 101, green 159, and blue 145 on the 0-255 scale.
What is the CMYK value of #659F91?
#659F91 converts to approximately cmyk(36%, 0%, 9%, 38%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #659F91 be black or white?
Black text is the more readable choice. #659F91 scores 3.03:1 against white and 6.92:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #659F91 as a CSS color keyword?
No. #659F91 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 8.93, which is clearly related but distinguishable side by side.
Open #659F91 in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.