#2BB1E1
Closest named color: Turquoise Blue (#06B1C4). oklch(71.2% 0.129 228), rgb(43, 177, 225).
Aa
Black text reads best on this color (8.47:1).
About this color
#2BB1E1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.129 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.046 away. Black text reads best on it, at 8.47:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.47:1 |
| White text | 2.47:1 |
Values
| HEX | #2BB1E1 |
| RGB | rgb(43, 177, 225) |
| HSL | hsl(196, 75%, 53%) |
| OKLCH | oklch(71.2% 0.129 228) |
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 #2BB1E1 | 2.47:1 | Fails | Lc -53.2 | Large or bold text, headings |
| Black text on #2BB1E1 | 8.47:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #2BB1E1 text on white | 2.47:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #2BB1E1 text on black | 8.47:1 | AAA | Lc -53.8 | 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
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#DBEDF6
oklch(93.5% 0.023 229.1)
-
Step 200
200
#BBE0F1
oklch(88.6% 0.045 227.4)
-
Step 300
300
#88CBEA
oklch(80.8% 0.081 228.8)
-
Step 400
400 (this color)
#2BB1E1
oklch(71.2% 0.129 228)
-
Step 500
500
#0097C4
oklch(63.2% 0.123 228.1)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#2BB1E1 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) | #98AEE3 | 0.093 |
| Deuteranopia (no green cones) | #809DE0 | 0.080 |
| Tritanopia (no blue cones) | #00BFC1 | 0.072 |
| Achromatopsia (no color) | #A5A5A5 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2BB1E1
#2BB1E1
oklch(71.2% 0.129 228)
- #E38857
#E38857
oklch(71.4% 0.129 48.1)
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 #2BB1E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.046
- Deep Sky Blue #00BFFF ΔE 0.050
- Vivid Sky Blue #4CC9F0 ΔE 0.071
- Bright Sky Blue #02CCFE ΔE 0.076
- Greyblue #77A1B5 ΔE 0.079
- Chefchaouen Blue #4895EF ΔE 0.084
- Light Sea Green #20B2AA ΔE 0.085
- Cornflower Blue #6495ED ΔE 0.087
Use #2BB1E1 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.