#4BB3DA
Closest named color: Turquoise Blue (#06B1C4). oklch(72.2% 0.11 226.3), rgb(75, 179, 218).
Aa
Black text reads best on this color (8.75:1).
About this color
#4BB3DA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.110 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.045 away. Black text reads best on it, at 8.75:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.75:1 |
| White text | 2.39:1 |
Values
| HEX | #4BB3DA |
| RGB | rgb(75, 179, 218) |
| HSL | hsl(196, 66%, 57%) |
| OKLCH | oklch(72.2% 0.11 226.3) |
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 #4BB3DA | 2.39:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #4BB3DA | 8.75:1 | AAA | Lc 57.0 | Large or bold text, headings |
| #4BB3DA text on white | 2.39:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #4BB3DA text on black | 8.75:1 | AAA | Lc -55.1 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DDEDF4
oklch(93.6% 0.019 225.7)
-
Step 200
200
#C0DFED
oklch(88.5% 0.038 226.8)
-
Step 300
300
#90CAE3
oklch(80.8% 0.069 226.6)
-
Step 400
400 (this color)
#4BB3DA
oklch(72.2% 0.11 226.3)
-
Step 500
500
#0097C1
oklch(63% 0.121 226.4)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#4BB3DA 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) | #9EB0DC | 0.083 |
| Deuteranopia (no green cones) | #8AA1DA | 0.073 |
| Tritanopia (no blue cones) | #00BEC0 | 0.062 |
| Achromatopsia (no color) | #A7A7A7 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4BB3DA
#4BB3DA
oklch(72.2% 0.11 226.3)
- #DE8F68
#DE8F68
oklch(72.2% 0.11 46.8)
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 #4BB3DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.045
- Deep Sky Blue #00BFFF ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.062
- Greyblue #77A1B5 ΔE 0.067
- Bright Sky Blue #02CCFE ΔE 0.073
- Bluegrey #85A3B2 ΔE 0.074
- Light Sea Green #20B2AA ΔE 0.078
- Topaz #13BBAF ΔE 0.080
Use #4BB3DA 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.