#5BC0FF
Closest named color: Deep Sky Blue (#00BFFF). oklch(77.3% 0.13 239), rgb(91, 192, 255).
Aa
Black text reads best on this color (10.42:1).
About this color
#5BC0FF is a medium-light, moderately saturated blue. In OKLCH its lightness is 77%, its chroma 0.130 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.034 away. Black text reads best on it, at 10.42:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 10.42:1 |
| White text | 2.01:1 |
Values
| HEX | #5BC0FF |
| RGB | rgb(91, 192, 255) |
| HSL | hsl(203, 100%, 68%) |
| OKLCH | oklch(77.3% 0.13 239) |
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 #5BC0FF | 2.01:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #5BC0FF | 10.42:1 | AAA | Lc 65.1 | Content text, not long reading |
| #5BC0FF text on white | 2.01:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #5BC0FF text on black | 10.42:1 | AAA | Lc -63.6 | 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
#D6EEFF
oklch(93.7% 0.034 238.7)
-
Step 200
200
#B3E0FF
oklch(88.5% 0.064 238.5)
-
Step 300
300 (this color)
#5BC0FF
oklch(77.3% 0.13 239)
-
Step 400
400
#00ACF8
oklch(70.8% 0.159 238.8)
-
Step 500
500
#0093D5
oklch(63.1% 0.142 238.9)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#5BC0FF 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) | #A3C0FF | 0.071 |
| Deuteranopia (no green cones) | #8CAFFE | 0.060 |
| Tritanopia (no blue cones) | #00D0D5 | 0.092 |
| Achromatopsia (no color) | #B7B7B7 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BC0FF
#5BC0FF
oklch(77.3% 0.13 239)
- #F2A05A
#F2A05A
oklch(77.4% 0.13 59.5)
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 #5BC0FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.034
- Vivid Sky Blue #4CC9F0 ΔE 0.038
- Lightblue #7BC8F6 ΔE 0.041
- Bright Sky Blue #02CCFE ΔE 0.042
- Carolina Blue #8AB8FE ΔE 0.045
- Sky #82CAFC ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.059
- Sky Blue #87CEEB ΔE 0.068
Use #5BC0FF 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.