#5DC3FF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.1% 0.128 237.4), rgb(93, 195, 255).
Aa
Black text reads best on this color (10.71:1).
About this color
#5DC3FF is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.128 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.033 away. Black text reads best on it, at 10.71:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.71:1 |
| White text | 1.95:1 |
Values
| HEX | #5DC3FF |
| RGB | rgb(93, 195, 255) |
| HSL | hsl(202, 100%, 68%) |
| OKLCH | oklch(78.1% 0.128 237.4) |
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 #5DC3FF | 1.95:1 | Fails | Lc -41.8 | Non-text elements, placeholder text |
| Black text on #5DC3FF | 10.71:1 | AAA | Lc 66.4 | Content text, not long reading |
| #5DC3FF text on white | 1.95:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #5DC3FF text on black | 10.71:1 | AAA | Lc -65.0 | 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
#ECF7FF
oklch(97% 0.016 239.1)
-
Step 100
100
#D5EEFF
oklch(93.6% 0.035 237.5)
-
Step 200
200
#B2E0FF
oklch(88.5% 0.064 237.9)
-
Step 300
300 (this color)
#5DC3FF
oklch(78.1% 0.128 237.4)
-
Step 400
400
#00ACF4
oklch(70.6% 0.155 237.4)
-
Step 500
500
#0094D2
oklch(63.2% 0.138 237.1)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#00557C
oklch(42.7% 0.094 237.9)
-
Step 900
900
#004768
oklch(37.7% 0.083 237.5)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#5DC3FF 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) | #A7C2FF | 0.074 |
| Deuteranopia (no green cones) | #91B2FE | 0.062 |
| Tritanopia (no blue cones) | #00D2D7 | 0.089 |
| Achromatopsia (no color) | #B9B9B9 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5DC3FF
#5DC3FF
oklch(78.1% 0.128 237.4)
- #F5A261
#F5A261
oklch(78.2% 0.128 57.5)
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 #5DC3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.034
- Bright Sky Blue #02CCFE ΔE 0.038
- Deep Sky Blue #00BFFF ΔE 0.039
- Sky #82CAFC ΔE 0.040
- Carolina Blue #8AB8FE ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.052
- Sky Blue #87CEEB ΔE 0.061
Use #5DC3FF 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.