#3BB666
Closest named color: Cool Green (#33B864). oklch(68.9% 0.159 151.2), rgb(59, 182, 102).
Aa
Black text reads best on this color (8.06:1).
About this color
#3BB666 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.159 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Cool Green (#33B864), ΔE 0.008 away. Black text reads best on it, at 8.06:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Cool Green (#33B864) |
| Black text | 8.06:1 |
| White text | 2.60:1 |
Values
| HEX | #3BB666 |
| RGB | rgb(59, 182, 102) |
| HSL | hsl(141, 51%, 47%) |
| OKLCH | oklch(68.9% 0.159 151.2) |
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 #3BB666 | 2.60:1 | Fails | Lc -55.6 | Large or bold text, headings |
| Black text on #3BB666 | 8.06:1 | AAA | Lc 53.6 | Large or bold text, headings |
| #3BB666 text on white | 2.60:1 | Fails | Lc 50.4 | Large or bold text, headings |
| #3BB666 text on black | 8.06:1 | AAA | Lc -51.5 | 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
#EFF8F1
oklch(97% 0.013 152.6)
-
Step 100
100
#DDF0E0
oklch(93.7% 0.029 150.1)
-
Step 200
200
#C0E4C7
oklch(88.5% 0.055 150.9)
-
Step 300
300
#90D3A0
oklch(80.8% 0.099 151.2)
-
Step 400
400 (this color)
#3BB666
oklch(68.9% 0.159 151.2)
-
Step 500
500
#00A550
oklch(63.2% 0.17 151.1)
-
Step 600
600
#008B43
oklch(55.7% 0.149 151.3)
-
Step 700
700
#007537
oklch(49.2% 0.132 151.1)
-
Step 800
800
#00602C
oklch(42.8% 0.115 151.2)
-
Step 900
900
#005024
oklch(37.7% 0.101 151.4)
-
Step 950
950
#003013
oklch(27.1% 0.072 151.4)
#3BB666 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) | #B7A760 | 0.134 |
| Deuteranopia (no green cones) | #A79C6B | 0.131 |
| Tritanopia (no blue cones) | #00B3A3 | 0.086 |
| Achromatopsia (no color) | #A0A0A0 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BB666
#3BB666
oklch(68.9% 0.159 151.2)
- #D273C8
#D273C8
oklch(69% 0.159 331.1)
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 #3BB666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Green #33B864 ΔE 0.008
- Medium Sea Green #3CB371 ΔE 0.019
- Jade Green #2BAF6A ΔE 0.025
- Green Teal #0CB577 ΔE 0.025
- Dark Pastel Green #56AE57 ΔE 0.026
- Dark Seafoam #1FB57A ΔE 0.027
- Dark Mint Green #20C073 ΔE 0.028
- Boring Green #63B365 ΔE 0.029
Use #3BB666 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.