#5383DB
Closest named color: Dark Sky Blue (#448EE4). oklch(61.8% 0.144 261.5), rgb(83, 131, 219).
Aa
Black text reads best on this color (5.63:1).
About this color
#5383DB is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.144 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.030 away. Black text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #5383DB |
| RGB | rgb(83, 131, 219) |
| HSL | hsl(219, 65%, 59%) |
| OKLCH | oklch(61.8% 0.144 261.5) |
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 #5383DB | 3.72:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #5383DB | 5.63:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #5383DB text on white | 3.72:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #5383DB text on black | 5.63:1 | AA | Lc -37.1 | 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
#CBDAF4
oklch(88.5% 0.039 261.5)
-
Step 300
300
#A8C2EF
oklch(81% 0.07 261.3)
-
Step 400
400
#79A0E7
oklch(70.6% 0.113 261.9)
-
Step 500
500 (this color)
#5383DB
oklch(61.8% 0.144 261.5)
-
Step 600
600
#3C6FCD
oklch(55.6% 0.156 261.4)
-
Step 700
700
#2F5CB2
oklch(49.1% 0.146 261.8)
-
Step 800
800
#274C90
oklch(42.7% 0.12 261.4)
-
Step 900
900
#244073
oklch(37.8% 0.094 261.4)
-
Step 950
950
#162643
oklch(27.1% 0.058 261.5)
#5383DB 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) | #5C8BDE | 0.025 |
| Deuteranopia (no green cones) | #487FD9 | 0.017 |
| Tritanopia (no blue cones) | #0097A4 | 0.122 |
| Achromatopsia (no color) | #848484 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5383DB
#5383DB
oklch(61.8% 0.144 261.5)
- #AC7C00
#AC7C00
oklch(61.8% 0.128 81.3)
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 #5383DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.030
- Soft Blue #6488EA ΔE 0.033
- Water Blue #0E87CC ΔE 0.050
- Chefchaouen Blue #4895EF ΔE 0.051
- Cool Blue #4984B8 ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.057
- Cornflower #6A79F7 ΔE 0.058
- Windows Blue #3778BF ΔE 0.059
Use #5383DB 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.