#5BB866
Closest named color: Boring Green (#63B365). oklch(70.5% 0.147 146.3), rgb(91, 184, 102).
Aa
Black text reads best on this color (8.49:1).
About this color
#5BB866 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.147 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.015 away. Black text reads best on it, at 8.49:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.49:1 |
| White text | 2.47:1 |
Values
| HEX | #5BB866 |
| RGB | rgb(91, 184, 102) |
| HSL | hsl(127, 40%, 54%) |
| OKLCH | oklch(70.5% 0.147 146.3) |
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 #5BB866 | 2.47:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #5BB866 | 8.49:1 | AAA | Lc 55.6 | Large or bold text, headings |
| #5BB866 text on white | 2.47:1 | Fails | Lc 48.4 | Large or bold text, headings |
| #5BB866 text on black | 8.49:1 | AAA | Lc -53.6 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C4E3C6
oklch(88.5% 0.051 146.9)
-
Step 300
300
#9AD19D
oklch(80.9% 0.092 146)
-
Step 400
400 (this color)
#5BB866
oklch(70.5% 0.147 146.3)
-
Step 500
500
#0EA639
oklch(63.2% 0.188 146.2)
-
Step 600
600
#008C2D
oklch(55.7% 0.169 146.3)
-
Step 700
700
#007524
oklch(49% 0.148 146.3)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#03300C
oklch(27.1% 0.078 146.3)
#5BB866 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) | #BAAA60 | 0.115 |
| Deuteranopia (no green cones) | #AEA16B | 0.115 |
| Tritanopia (no blue cones) | #4BB4A4 | 0.088 |
| Achromatopsia (no color) | #A5A5A5 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BB866
#5BB866
oklch(70.5% 0.147 146.3)
- #CF7DD0
#CF7DD0
oklch(70.5% 0.147 326.6)
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 #5BB866, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.015
- Dark Mint #48C072 ΔE 0.023
- Cool Green #33B864 ΔE 0.027
- Turtle Green #75B84F ΔE 0.030
- Dark Pastel Green #56AE57 ΔE 0.031
- Medium Sea Green #3CB371 ΔE 0.031
- Dark Mint Green #20C073 ΔE 0.033
- Algae #54AC68 ΔE 0.037
Use #5BB866 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.