#3BD2B2
Closest named color: Medium Aquamarine (#66CDAA). oklch(77.8% 0.132 175), rgb(59, 210, 178).
Aa
Black text reads best on this color (11.04:1).
About this color
#3BD2B2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.132 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.026 away. Black text reads best on it, at 11.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.04:1 |
| White text | 1.90:1 |
Values
| HEX | #3BD2B2 |
| RGB | rgb(59, 210, 178) |
| HSL | hsl(167, 63%, 53%) |
| OKLCH | oklch(77.8% 0.132 175) |
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 #3BD2B2 | 1.90:1 | Fails | Lc -40.0 | Non-text elements, placeholder text |
| Black text on #3BD2B2 | 11.04:1 | AAA | Lc 68.1 | Content text, not long reading |
| #3BD2B2 text on white | 1.90:1 | Fails | Lc 35.8 | Non-text elements, placeholder text |
| #3BD2B2 text on black | 11.04:1 | AAA | Lc -66.7 | Content text, not long reading |
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 300.
-
Step 50
50
#EAFAF5
oklch(97.2% 0.018 175.3)
-
Step 100
100
#D1F3E8
oklch(93.7% 0.038 173.9)
-
Step 200
200
#A5EAD6
oklch(88.6% 0.075 174.5)
-
Step 300
300 (this color)
#3BD2B2
oklch(77.8% 0.132 175)
-
Step 400
400
#00BB9C
oklch(70.7% 0.133 175.1)
-
Step 500
500
#00A085
oklch(63% 0.119 175)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#3BD2B2 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) | #CAC5B1 | 0.137 |
| Deuteranopia (no green cones) | #B6B6B4 | 0.131 |
| Tritanopia (no blue cones) | #00D5C9 | 0.031 |
| Achromatopsia (no color) | #BCBCBC | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BD2B2
#3BD2B2
oklch(77.8% 0.132 175)
- #F992BB
#F992BB
oklch(77.9% 0.132 355.3)
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 #3BD2B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.026
- Emerald #06D6A0 ΔE 0.035
- Medium Turquoise #48D1CC ΔE 0.040
- Seafoam Blue #78D1B6 ΔE 0.042
- Turquoise #40E0D0 ΔE 0.050
- Dark Turquoise #00CED1 ΔE 0.050
- Pale Teal #82CBB2 ΔE 0.052
- Aqua Marine #2EE8BB ΔE 0.060
Use #3BD2B2 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.