#5AC4E4
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(77% 0.107 220.7), rgb(90, 196, 228).
Aa
Black text reads best on this color (10.45:1).
About this color
#5AC4E4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.107 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.019 away. Black text reads best on it, at 10.45:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.45:1 |
| White text | 2.00:1 |
Values
| HEX | #5AC4E4 |
| RGB | rgb(90, 196, 228) |
| HSL | hsl(194, 72%, 62%) |
| OKLCH | oklch(77% 0.107 220.7) |
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 #5AC4E4 | 2.00:1 | Fails | Lc -43.2 | Non-text elements, placeholder text |
| Black text on #5AC4E4 | 10.45:1 | AAA | Lc 65.2 | Content text, not long reading |
| #5AC4E4 text on white | 2.00:1 | Fails | Lc 38.7 | Non-text elements, placeholder text |
| #5AC4E4 text on black | 10.45:1 | AAA | Lc -63.7 | 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
#ECF8FC
oklch(97.1% 0.014 219.6)
-
Step 100
100
#D4EFF9
oklch(93.6% 0.031 222.1)
-
Step 200
200
#AEE3F5
oklch(88.5% 0.06 220.7)
-
Step 300
300 (this color)
#5AC4E4
oklch(77% 0.107 220.7)
-
Step 400
400
#00B2D9
oklch(70.7% 0.13 221)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#5AC4E4 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) | #B1BFE6 | 0.090 |
| Deuteranopia (no green cones) | #9DB0E4 | 0.081 |
| Tritanopia (no blue cones) | #00CECE | 0.059 |
| Achromatopsia (no color) | #B7B7B7 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5AC4E4
#5AC4E4
oklch(77% 0.107 220.7)
- #EF9D7F
#EF9D7F
oklch(77.1% 0.107 40.9)
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 #5AC4E4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.019
- Lightblue #7BC8F6 ΔE 0.041
- Bright Sky Blue #02CCFE ΔE 0.043
- Sky Blue #87CEEB ΔE 0.052
- Sky #82CAFC ΔE 0.053
- Deep Sky Blue #00BFFF ΔE 0.055
- Dark Turquoise #00CED1 ΔE 0.055
- Aqua Blue #02D8E9 ΔE 0.057
Use #5AC4E4 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.