#2BBBB3
Closest named color: Topaz (#13BBAF). oklch(71.8% 0.116 189.1), rgb(43, 187, 179).
Aa
Black text reads best on this color (8.86:1).
About this color
#2BBBB3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.116 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.010 away. Black text reads best on it, at 8.86:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.86:1 |
| White text | 2.36:1 |
Values
| HEX | #2BBBB3 |
| RGB | rgb(43, 187, 179) |
| HSL | hsl(177, 63%, 45%) |
| OKLCH | oklch(71.8% 0.116 189.1) |
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 #2BBBB3 | 2.36:1 | Fails | Lc -51.2 | Large or bold text, headings |
| Black text on #2BBBB3 | 8.86:1 | AAA | Lc 57.7 | Large or bold text, headings |
| #2BBBB3 text on white | 2.36:1 | Fails | Lc 46.3 | Large or bold text, headings |
| #2BBBB3 text on black | 8.86:1 | AAA | Lc -55.8 | 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
#EFF8F7
oklch(97.2% 0.01 189.1)
-
Step 100
100
#DBEFED
oklch(93.7% 0.021 189.6)
-
Step 200
200
#BCE2DE
oklch(88.4% 0.04 188.6)
-
Step 300
300
#88D0CA
oklch(80.9% 0.073 189.2)
-
Step 400
400 (this color)
#2BBBB3
oklch(71.8% 0.116 189.1)
-
Step 500
500
#009E97
oklch(63.1% 0.109 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#2BBBB3 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) | #B0B1B3 | 0.122 |
| Deuteranopia (no green cones) | #9CA2B4 | 0.115 |
| Tritanopia (no blue cones) | #00C0B8 | 0.014 |
| Achromatopsia (no color) | #A8A8A8 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2BBBB3
#2BBBB3
oklch(71.8% 0.116 189.1)
- #E28495
#E28495
oklch(71.8% 0.117 8.8)
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 #2BBBB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.010
- Light Sea Green #20B2AA ΔE 0.027
- Greeny Blue #42B395 ΔE 0.041
- Turquoise Blue #06B1C4 ΔE 0.045
- Dark Turquoise #00CED1 ΔE 0.058
- Green Blue #01C08D ΔE 0.063
- Medium Turquoise #48D1CC ΔE 0.068
- Greenblue #23C48B ΔE 0.071
Use #2BBBB3 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.