#2BC4F4
Closest named color: Bright Sky Blue (#02CCFE). oklch(76.6% 0.137 225.2), rgb(43, 196, 244).
Aa
Black text reads best on this color (10.30:1).
About this color
#2BC4F4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.137 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Sky Blue (#02CCFE), ΔE 0.022 away. Black text reads best on it, at 10.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.137) |
| Temperature | cool |
| Nearest name | Bright Sky Blue (#02CCFE) |
| Black text | 10.30:1 |
| White text | 2.03:1 |
Values
| HEX | #2BC4F4 |
| RGB | rgb(43, 196, 244) |
| HSL | hsl(194, 90%, 56%) |
| OKLCH | oklch(76.6% 0.137 225.2) |
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 #2BC4F4 | 2.03:1 | Fails | Lc -43.6 | Non-text elements, placeholder text |
| Black text on #2BC4F4 | 10.30:1 | AAA | Lc 64.8 | Content text, not long reading |
| #2BC4F4 text on white | 2.03:1 | Fails | Lc 39.2 | Non-text elements, placeholder text |
| #2BC4F4 text on black | 10.30:1 | AAA | Lc -63.2 | 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
#E9F8FF
oklch(97% 0.018 227.3)
-
Step 100
100
#CFF0FE
oklch(93.6% 0.039 225.3)
-
Step 200
200
#A3E4FF
oklch(88.4% 0.075 225.7)
-
Step 300
300 (this color)
#2BC4F4
oklch(76.6% 0.137 225.2)
-
Step 400
400
#00B1DF
oklch(70.7% 0.134 225)
-
Step 500
500
#0098C0
oklch(63.2% 0.12 225)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#2BC4F4 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) | #AAC0F6 | 0.104 |
| Deuteranopia (no green cones) | #90AEF3 | 0.090 |
| Tritanopia (no blue cones) | #00D2D4 | 0.070 |
| Achromatopsia (no color) | #B6B6B6 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2BC4F4
#2BC4F4
oklch(76.6% 0.137 225.2)
- #FA9566
#FA9566
oklch(76.6% 0.137 45.1)
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 #2BC4F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Sky Blue #02CCFE ΔE 0.022
- Vivid Sky Blue #4CC9F0 ΔE 0.024
- Deep Sky Blue #00BFFF ΔE 0.025
- Lightblue #7BC8F6 ΔE 0.055
- Aqua Blue #02D8E9 ΔE 0.062
- Sky #82CAFC ΔE 0.065
- Dark Turquoise #00CED1 ΔE 0.067
- Light Sky Blue #87CEFA ΔE 0.073
Use #2BC4F4 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.