#4FC4EE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77.1% 0.119 225.4), rgb(79, 196, 238).
Aa
Black text reads best on this color (10.46:1).
About this color
#4FC4EE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.119 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.013 away. Black text reads best on it, at 10.46:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.46:1 |
| White text | 2.00:1 |
Values
| HEX | #4FC4EE |
| RGB | rgb(79, 196, 238) |
| HSL | hsl(196, 82%, 62%) |
| OKLCH | oklch(77.1% 0.119 225.4) |
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 #4FC4EE | 2.00:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #4FC4EE | 10.46:1 | AAA | Lc 65.3 | Content text, not long reading |
| #4FC4EE text on white | 2.00:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #4FC4EE text on black | 10.46:1 | AAA | Lc -63.8 | 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
#D3EFFC
oklch(93.6% 0.034 227.4)
-
Step 200
200
#AAE3FB
oklch(88.5% 0.067 225.8)
-
Step 300
300 (this color)
#4FC4EE
oklch(77.1% 0.119 225.4)
-
Step 400
400
#00B1E0
oklch(70.8% 0.135 225.5)
-
Step 500
500
#0097C0
oklch(63% 0.12 225.7)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
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)
#4FC4EE 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) | #ADC0F0 | 0.091 |
| Deuteranopia (no green cones) | #97B0EE | 0.080 |
| Tritanopia (no blue cones) | #00D0D2 | 0.066 |
| Achromatopsia (no color) | #B7B7B7 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4FC4EE
#4FC4EE
oklch(77.1% 0.119 225.4)
- #F39B72
#F39B72
oklch(77% 0.119 45.5)
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 #4FC4EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.013
- Bright Sky Blue #02CCFE ΔE 0.031
- Deep Sky Blue #00BFFF ΔE 0.040
- Lightblue #7BC8F6 ΔE 0.040
- Sky #82CAFC ΔE 0.052
- Sky Blue #87CEEB ΔE 0.058
- Light Sky Blue #87CEFA ΔE 0.059
- Aqua Blue #02D8E9 ΔE 0.060
Use #4FC4EE 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.