Palettes / Colors / #91EF2B
#91EF2B — Vivid Green
#91EF2B is a green color we call Vivid Green, closest to the named color GreenYellow (#ADFF2F). It belongs to the green family.
Color name
Closest CSS keyword: greenyellow (#ADFF2F) — not an exact match. CSS greenyellow gives you #ADFF2F, a different color; use #91EF2B when you need this exact shade.
Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.
#91EF2B is a warm-leaning green color associated with growth, calm and balance. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.
Its strongest partner is its complement #892AEF; it also sits naturally between #EFEC2A and #2DEF2A. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #91EF2B |
|---|---|
| RGB | 145, 239, 43 |
| HSL | 89°, 86%, 55% |
| HSV | 89°, 82%, 94% |
| CMYK | 39%, 0%, 82%, 6% |
| XYZ | 42.98, 67.93, 13.13 |
| Yxy | 67.93, 0.3465, 0.5476 |
| CIE-Lab | 85.97, -55.75, 77.00 |
| Hunter Lab | 82.42, -47.49, 45.44 |
RGB & CMYK percentages
Red 57% · Green 94% · Blue 17%
Cyan 39% · Magenta 0% · Yellow 82% · Key 6%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
CSS code for #91EF2B
.text { color: #91EF2B; }
.background { background-color: #91EF2B; }
.border { border: 3px solid #91EF2B; }
.text-rgb { color: rgb(145, 239, 43); }
.text-hsl { color: hsl(89, 86%, 55%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #91EF2B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(145, 239, 43, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #91EF2B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(145, 239, 43, 0.8); }
HTML: <p style="color:#91EF2B">Text here</p> · <div style="background-color:#91EF2B">Div content here</div>
Shades of #91EF2B
Tints of #91EF2B
Tones of #91EF2B
Color harmonies
Complementary — #892AEF:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 1.44:1 Fails |
|---|---|
| Against black text | 14.59:1 AAA |
Best text color on #91EF2B: #000000.
Semi-transparent (opacity) text on #91EF2B
Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:
Smaller body text shows the effect best.
Blended color: · Contrast against #91EF2B: ·
How #91EF2B looks with color blindness
Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:
Closest design-system colors
The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:
Palettes with a similar color
These palettes use a close neighbour of #91EF2B rather than the exact color:
Similar colors
The closest colors that actually appear in our palette collection — click any to open its page:
Browse neighbouring colors
Frequently asked questions
What color is #91EF2B?
#91EF2B is Vivid Green, a green color (RGB 145, 239, 43). Its closest standard named color is GreenYellow.
What is the RGB and HSL of #91EF2B?
#91EF2B is RGB 145, 239, 43 — HSL 89°, 86%, 55% — CMYK 39%, 0%, 82%, 6%.
What colors go with #91EF2B?
Its complement is #892AEF; analogous partners are #EFEC2A and #2DEF2A. It also appears in 6+ palettes in our collection.
Can I use #91EF2B for text?
Black text on #91EF2B has a contrast ratio of 14.59:1 (passes WCAG AA); white text gives 1.44:1.