#3BBCA4
Closest named color: Topaz (#13BBAF). oklch(72% 0.116 177.7), rgb(59, 188, 164).
Aa
Black text reads best on this color (8.91:1).
About this color
#3BBCA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.116 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.020 away. Black text reads best on it, at 8.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.91:1 |
| White text | 2.35:1 |
Values
| HEX | #3BBCA4 |
| RGB | rgb(59, 188, 164) |
| HSL | hsl(169, 52%, 48%) |
| OKLCH | oklch(72% 0.116 177.7) |
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 #3BBCA4 | 2.35:1 | Fails | Lc -51.0 | Large or bold text, headings |
| Black text on #3BBCA4 | 8.91:1 | AAA | Lc 57.9 | Large or bold text, headings |
| #3BBCA4 text on white | 2.35:1 | Fails | Lc 46.1 | Large or bold text, headings |
| #3BBCA4 text on black | 8.91:1 | AAA | Lc -56.0 | 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
#DCEFEA
oklch(93.7% 0.021 178.3)
-
Step 200
200
#BEE2D9
oklch(88.4% 0.04 178.5)
-
Step 300
300
#8CD0C0
oklch(80.8% 0.073 178)
-
Step 400
400 (this color)
#3BBCA4
oklch(72% 0.116 177.7)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#3BBCA4 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) | #B5B1A3 | 0.123 |
| Deuteranopia (no green cones) | #A3A3A6 | 0.118 |
| Tritanopia (no blue cones) | #00BFB5 | 0.025 |
| Achromatopsia (no color) | #A9A9A9 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BBCA4
#3BBCA4
oklch(72% 0.116 177.7)
- #DF85A4
#DF85A4
oklch(72.1% 0.116 358.3)
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 #3BBCA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.020
- Greeny Blue #42B395 ΔE 0.028
- Light Sea Green #20B2AA ΔE 0.036
- Green Blue #01C08D ΔE 0.043
- Greenblue #23C48B ΔE 0.050
- Medium Aquamarine #66CDAA ΔE 0.060
- Tea #65AB7C ΔE 0.061
- Dark Seafoam #1FB57A ΔE 0.061
Use #3BBCA4 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.