#4FBB55
Closest named color: Leafy Green (#51B73B). oklch(70.6% 0.173 144.4), rgb(79, 187, 85).
Aa
Black text reads best on this color (8.57:1).
About this color
#4FBB55 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.173 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.023 away. Black text reads best on it, at 8.57:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.57:1 |
| White text | 2.44:1 |
Values
| HEX | #4FBB55 |
| RGB | rgb(79, 187, 85) |
| HSL | hsl(123, 44%, 52%) |
| OKLCH | oklch(70.6% 0.173 144.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4FBB55 | 2.44:1 | Fails | Lc -52.9 | Large or bold text, headings |
| Black text on #4FBB55 | 8.57:1 | AAA | Lc 56.1 | Large or bold text, headings |
| #4FBB55 text on white | 2.44:1 | Fails | Lc 47.9 | Large or bold text, headings |
| #4FBB55 text on black | 8.57:1 | AAA | Lc -54.1 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DEF0DD
oklch(93.7% 0.032 143.9)
-
Step 200
200
#C2E4C1
oklch(88.5% 0.059 144.3)
-
Step 300
300
#95D395
oklch(80.9% 0.107 144.5)
-
Step 400
400 (this color)
#4FBB55
oklch(70.6% 0.173 144.4)
-
Step 500
500
#00A627
oklch(63% 0.201 144.5)
-
Step 600
600
#008C1F
oklch(55.6% 0.178 144.4)
-
Step 700
700
#007618
oklch(49.1% 0.157 144.4)
-
Step 800
800
#006112
oklch(42.8% 0.137 144.4)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#4FBB55 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #BEAB4C | 0.129 |
| Deuteranopia (no green cones) | #B0A25D | 0.128 |
| Tritanopia (no blue cones) | #3BB6A4 | 0.107 |
| Achromatopsia (no color) | #A5A5A5 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FBB55
#4FBB55
oklch(70.6% 0.173 144.4)
- #D476DB
#D476DB
oklch(70.6% 0.172 324.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4FBB55, closest first.
No curated palette has a color within ΔE 0.04 of #4FBB55.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.023
- Cool Green #33B864 ΔE 0.025
- Dark Mint #48C072 ΔE 0.031
- Algae Green #21C36F ΔE 0.032
- Turtle Green #75B84F ΔE 0.032
- Dark Mint Green #20C073 ΔE 0.034
- Shamrock Green #02C14D ΔE 0.034
- Boring Green #63B365 ΔE 0.038
Use #4FBB55 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.