#3BD5FB
Closest named color: Bright Sky Blue (#02CCFE). oklch(81.1% 0.133 218.8), rgb(59, 213, 251).
Aa
Black text reads best on this color (12.09:1).
About this color
#3BD5FB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.133 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Sky Blue (#02CCFE), ΔE 0.032 away. Black text reads best on it, at 12.09:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Bright Sky Blue (#02CCFE) |
| Black text | 12.09:1 |
| White text | 1.73:1 |
Values
| HEX | #3BD5FB |
| RGB | rgb(59, 213, 251) |
| HSL | hsl(192, 96%, 61%) |
| OKLCH | oklch(81.1% 0.133 218.8) |
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 #3BD5FB | 1.73:1 | Fails | Lc -34.9 | Non-text elements, placeholder text |
| Black text on #3BD5FB | 12.09:1 | AAA | Lc 72.8 | Content text, not long reading |
| #3BD5FB text on white | 1.73:1 | Fails | Lc 31.1 | Non-text elements, placeholder text |
| #3BD5FB text on black | 12.09:1 | AAA | Lc -71.7 | Content text, not long reading |
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 300.
-
Step 50
50
#E9F9FE
oklch(97.2% 0.018 218.4)
-
Step 100
100
#CEF1FB
oklch(93.6% 0.039 216.9)
-
Step 200
200
#A1E6FA
oklch(88.6% 0.074 217.8)
-
Step 300
300 (this color)
#3BD5FB
oklch(81.1% 0.133 218.8)
-
Step 400
400
#00B3D6
oklch(70.8% 0.128 218.5)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#3BD5FB 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) | #BDCFFD | 0.113 |
| Deuteranopia (no green cones) | #A4BCFB | 0.102 |
| Tritanopia (no blue cones) | #00E2E1 | 0.061 |
| Achromatopsia (no color) | #C4C4C4 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BD5FB
#3BD5FB
oklch(81.1% 0.133 218.8)
- #FFA88C
#FFA88C
oklch(81.1% 0.111 38.6)
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 #3BD5FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Sky Blue #02CCFE ΔE 0.032
- Vivid Sky Blue #4CC9F0 ΔE 0.032
- Aqua Blue #02D8E9 ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.049
- Sky Blue #87CEEB ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.053
- Sky #82CAFC ΔE 0.053
- Dark Turquoise #00CED1 ΔE 0.064
Use #3BD5FB 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.