#5BB951
Closest named color: Leafy Green (#51B73B). oklch(70.5% 0.168 141.8), rgb(91, 185, 81).
Aa
Black text reads best on this color (8.50:1).
About this color
#5BB951 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.168 and its hue 142°. 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 8.50:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.50:1 |
| White text | 2.46:1 |
Values
| HEX | #5BB951 |
| RGB | rgb(91, 185, 81) |
| HSL | hsl(114, 43%, 52%) |
| OKLCH | oklch(70.5% 0.168 141.8) |
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 #5BB951 | 2.46:1 | Fails | Lc -53.3 | Large or bold text, headings |
| Black text on #5BB951 | 8.50:1 | AAA | Lc 55.7 | Large or bold text, headings |
| #5BB951 text on white | 2.46:1 | Fails | Lc 48.3 | Large or bold text, headings |
| #5BB951 text on black | 8.50:1 | AAA | Lc -53.7 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFEFDD
oklch(93.5% 0.029 142.2)
-
Step 200
200
#C4E3C0
oklch(88.4% 0.058 142)
-
Step 300
300
#9AD293
oklch(80.9% 0.104 141.8)
-
Step 400
400 (this color)
#5BB951
oklch(70.5% 0.168 141.8)
-
Step 500
500
#18A600
oklch(63% 0.211 141.8)
-
Step 600
600
#128C00
oklch(55.6% 0.186 141.8)
-
Step 700
700
#0E7600
oklch(49.2% 0.165 141.8)
-
Step 800
800
#096100
oklch(42.8% 0.143 141.8)
-
Step 900
900
#065100
oklch(37.8% 0.127 141.8)
-
Step 950
950
#033001
oklch(26.9% 0.089 142)
#5BB951 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) | #BDAA47 | 0.119 |
| Deuteranopia (no green cones) | #B1A259 | 0.119 |
| Tritanopia (no blue cones) | #50B4A2 | 0.109 |
| Achromatopsia (no color) | #A5A5A5 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB951
#5BB951
oklch(70.5% 0.168 141.8)
- #CF79DD
#CF79DD
oklch(70.5% 0.167 321.8)
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 #5BB951, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.023
- Turtle Green #75B84F ΔE 0.024
- Cool Green #33B864 ΔE 0.030
- Boring Green #63B365 ΔE 0.033
- Dark Mint #48C072 ΔE 0.035
- Dark Pastel Green #56AE57 ΔE 0.035
- Algae Green #21C36F ΔE 0.039
- Dark Mint Green #20C073 ΔE 0.040
Use #5BB951 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.