#3BC399
Closest named color: Greenblue (#23C48B). oklch(73.4% 0.131 168), rgb(59, 195, 153).
Aa
Black text reads best on this color (9.45:1).
About this color
#3BC399 is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.131 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.024 away. Black text reads best on it, at 9.45:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 9.45:1 |
| White text | 2.22:1 |
Values
| HEX | #3BC399 |
| RGB | rgb(59, 195, 153) |
| HSL | hsl(161, 54%, 50%) |
| OKLCH | oklch(73.4% 0.131 168) |
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 #3BC399 | 2.22:1 | Fails | Lc -48.1 | Large or bold text, headings |
| Black text on #3BC399 | 9.45:1 | AAA | Lc 60.6 | Content text, not long reading |
| #3BC399 text on white | 2.22:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #3BC399 text on black | 9.45:1 | AAA | Lc -58.8 | 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
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE7
oklch(93.6% 0.023 168.7)
-
Step 200
200
#BDE3D3
oklch(88.4% 0.045 167.9)
-
Step 300
300
#8BD2B6
oklch(80.9% 0.082 167.6)
-
Step 400
400 (this color)
#3BC399
oklch(73.4% 0.131 168)
-
Step 500
500
#00A17A
oklch(63% 0.128 168)
-
Step 600
600
#008866
oklch(55.6% 0.113 167.6)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#3BC399 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) | #BEB697 | 0.132 |
| Deuteranopia (no green cones) | #ACA99C | 0.127 |
| Tritanopia (no blue cones) | #00C4B7 | 0.042 |
| Achromatopsia (no color) | #AEAEAE | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BC399
#3BC399
oklch(73.4% 0.131 168)
- #E585B7
#E585B7
oklch(73.4% 0.131 348.3)
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 #3BC399, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.024
- Green Blue #01C08D ΔE 0.026
- Greeny Blue #42B395 ΔE 0.045
- Topaz #13BBAF ΔE 0.046
- Medium Aquamarine #66CDAA ΔE 0.048
- Dark Mint #48C072 ΔE 0.049
- Soft Green #6FC276 ΔE 0.052
- Emerald #06D6A0 ΔE 0.052
Use #3BC399 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.