#3BBD9F
Closest named color: Topaz (#13BBAF). oklch(72.1% 0.12 174), rgb(59, 189, 159).
Aa
Black text reads best on this color (8.96:1).
About this color
#3BBD9F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.120 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.028 away. Black text reads best on it, at 8.96:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.96:1 |
| White text | 2.34:1 |
Values
| HEX | #3BBD9F |
| RGB | rgb(59, 189, 159) |
| HSL | hsl(166, 52%, 49%) |
| OKLCH | oklch(72.1% 0.12 174) |
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 #3BBD9F | 2.34:1 | Fails | Lc -50.7 | Large or bold text, headings |
| Black text on #3BBD9F | 8.96:1 | AAA | Lc 58.2 | Large or bold text, headings |
| #3BBD9F text on white | 2.34:1 | Fails | Lc 45.8 | Large or bold text, headings |
| #3BBD9F text on black | 8.96:1 | AAA | Lc -56.3 | 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
#EFF8F5
oklch(97.2% 0.01 174.3)
-
Step 100
100
#DCEFE9
oklch(93.6% 0.022 175)
-
Step 200
200
#BEE3D7
oklch(88.6% 0.042 173.7)
-
Step 300
300
#8CD1BD
oklch(80.9% 0.075 174.2)
-
Step 400
400 (this color)
#3BBD9F
oklch(72.1% 0.12 174)
-
Step 500
500
#00A084
oklch(63% 0.119 174.3)
-
Step 600
600
#00876F
oklch(55.6% 0.106 174.3)
-
Step 700
700
#00725D
oklch(49.3% 0.094 174)
-
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
#002E24
oklch(26.9% 0.051 173.7)
#3BBD9F 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) | #B7B19E | 0.126 |
| Deuteranopia (no green cones) | #A5A4A1 | 0.120 |
| Tritanopia (no blue cones) | #00BFB4 | 0.030 |
| Achromatopsia (no color) | #A9A9A9 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BBD9F
#3BBD9F
oklch(72.1% 0.12 174)
- #DF84AA
#DF84AA
oklch(72.1% 0.12 354)
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 #3BBD9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.028
- Greeny Blue #42B395 ΔE 0.028
- Green Blue #01C08D ΔE 0.035
- Greenblue #23C48B ΔE 0.041
- Light Sea Green #20B2AA ΔE 0.043
- Dark Seafoam #1FB57A ΔE 0.055
- Bluey Green #2BB179 ΔE 0.058
- Medium Aquamarine #66CDAA ΔE 0.058
Use #3BBD9F 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.