#5BB339
Closest named color: Leafy Green (#51B73B). oklch(68.7% 0.179 138.3), rgb(91, 179, 57).
Aa
Black text reads best on this color (7.95:1).
About this color
#5BB339 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.179 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.012 away. Black text reads best on it, at 7.95:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.95:1 |
| White text | 2.64:1 |
Values
| HEX | #5BB339 |
| RGB | rgb(91, 179, 57) |
| HSL | hsl(103, 52%, 46%) |
| OKLCH | oklch(68.7% 0.179 138.3) |
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 #5BB339 | 2.64:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #5BB339 | 7.95:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #5BB339 text on white | 2.64:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #5BB339 text on black | 7.95:1 | AAA | Lc -50.8 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#E0EFDB
oklch(93.5% 0.031 137.8)
-
Step 200
200
#C5E4BC
oklch(88.6% 0.063 138.7)
-
Step 300
300
#9CD28B
oklch(80.9% 0.112 138.4)
-
Step 400
400 (this color)
#5BB339
oklch(68.7% 0.179 138.3)
-
Step 500
500
#40A300
oklch(63.1% 0.196 138.3)
-
Step 600
600
#348900
oklch(55.6% 0.173 138.4)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#0D2F00
oklch(26.9% 0.084 138.2)
#5BB339 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) | #B8A428 | 0.116 |
| Deuteranopia (no green cones) | #AD9C44 | 0.118 |
| Tritanopia (no blue cones) | #54AD9A | 0.123 |
| Achromatopsia (no color) | #9F9F9F | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB339
#5BB339
oklch(68.7% 0.179 138.3)
- #C871E0
#C871E0
oklch(68.7% 0.179 318.6)
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 #5BB339, closest first.
No curated palette has a color within ΔE 0.04 of #5BB339.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.012
- Grass #5CAC2D ΔE 0.020
- Leaf #71AA34 ΔE 0.030
- Leaf Green #5CA904 ΔE 0.032
- Medium Green #39AD48 ΔE 0.034
- Dark Pastel Green #56AE57 ΔE 0.035
- Turtle Green #75B84F ΔE 0.038
- Frog Green #58BC08 ΔE 0.038
Use #5BB339 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.