#5185DE
Closest named color: Dark Sky Blue (#448EE4). oklch(62.3% 0.146 260.5), rgb(81, 133, 222).
Aa
Black text reads best on this color (5.75:1).
About this color
#5185DE is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.146 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.024 away. Black text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #5185DE |
| RGB | rgb(81, 133, 222) |
| HSL | hsl(218, 68%, 59%) |
| OKLCH | oklch(62.3% 0.146 260.5) |
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 #5185DE | 3.64:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #5185DE | 5.75:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #5185DE text on white | 3.64:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #5185DE text on black | 5.75:1 | AA | Lc -37.9 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A6C2EF
oklch(80.9% 0.071 259.8)
-
Step 400
400
#77A1E8
oklch(70.8% 0.114 260.5)
-
Step 500
500 (this color)
#5185DE
oklch(62.3% 0.146 260.5)
-
Step 600
600
#386FCF
oklch(55.6% 0.16 260.7)
-
Step 700
700
#2A5DB3
oklch(49.2% 0.147 260.2)
-
Step 800
800
#244C91
oklch(42.7% 0.123 260.5)
-
Step 900
900
#224073
oklch(37.7% 0.095 260.3)
-
Step 950
950
#142644
oklch(27% 0.061 260.1)
#5185DE 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) | #5D8DE2 | 0.026 |
| Deuteranopia (no green cones) | #4880DC | 0.017 |
| Tritanopia (no blue cones) | #0099A7 | 0.120 |
| Achromatopsia (no color) | #868686 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5185DE
#5185DE
oklch(62.3% 0.146 260.5)
- #AF7D00
#AF7D00
oklch(62.3% 0.129 80.4)
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 #5185DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.024
- Soft Blue #6488EA ΔE 0.029
- Chefchaouen Blue #4895EF ΔE 0.045
- Water Blue #0E87CC ΔE 0.051
- Cornflower Blue #6495ED ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.057
- Cornflower #6A79F7 ΔE 0.058
- Cool Blue #4984B8 ΔE 0.060
Use #5185DE 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.