#4AC3EC
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76.6% 0.12 224.4), rgb(74, 195, 236).
Aa
Black text reads best on this color (10.30:1).
About this color
#4AC3EC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.120 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.017 away. Black text reads best on it, at 10.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.30:1 |
| White text | 2.03:1 |
Values
| HEX | #4AC3EC |
| RGB | rgb(74, 195, 236) |
| HSL | hsl(195, 81%, 61%) |
| OKLCH | oklch(76.6% 0.12 224.4) |
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 #4AC3EC | 2.03:1 | Fails | Lc -43.8 | Non-text elements, placeholder text |
| Black text on #4AC3EC | 10.30:1 | AAA | Lc 64.6 | Content text, not long reading |
| #4AC3EC text on white | 2.03:1 | Fails | Lc 39.3 | Non-text elements, placeholder text |
| #4AC3EC text on black | 10.30:1 | AAA | Lc -63.0 | 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
#EBF8FE
oklch(97.1% 0.016 227)
-
Step 100
100
#D2EFFB
oklch(93.5% 0.034 224.6)
-
Step 200
200
#A9E3FA
oklch(88.4% 0.067 224.4)
-
Step 300
300 (this color)
#4AC3EC
oklch(76.6% 0.12 224.4)
-
Step 400
400
#00B1DE
oklch(70.7% 0.133 224.4)
-
Step 500
500
#0098BF
oklch(63.2% 0.119 224.4)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
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)
#4AC3EC 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) | #ACBFEE | 0.093 |
| Deuteranopia (no green cones) | #96AEEC | 0.084 |
| Tritanopia (no blue cones) | #00CFD0 | 0.065 |
| Achromatopsia (no color) | #B6B6B6 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4AC3EC
#4AC3EC
oklch(76.6% 0.12 224.4)
- #F39972
#F39972
oklch(76.6% 0.121 44)
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 #4AC3EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.017
- Bright Sky Blue #02CCFE ΔE 0.033
- Deep Sky Blue #00BFFF ΔE 0.039
- Lightblue #7BC8F6 ΔE 0.045
- Sky #82CAFC ΔE 0.057
- Aqua Blue #02D8E9 ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.062
- Sky Blue #87CEEB ΔE 0.062
Use #4AC3EC 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.