#5863DC
Closest named color: Dark Periwinkle (#665FD1). oklch(55.7% 0.183 274.9), rgb(88, 99, 220).
Aa
White text reads best on this color (4.96:1).
About this color
#5863DC is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.183 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.026 away. White text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.23:1 |
| White text | 4.96:1 |
Values
| HEX | #5863DC |
| RGB | rgb(88, 99, 220) |
| HSL | hsl(235, 65%, 60%) |
| OKLCH | oklch(55.7% 0.183 274.9) |
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 #5863DC | 4.96:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #5863DC | 4.23:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #5863DC text on white | 4.96:1 | AA | Lc 74.0 | Content text, not long reading |
| #5863DC text on black | 4.23:1 | AA large text | Lc -27.7 | Dividers and decoration only |
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 600.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B1BDF6
oklch(80.9% 0.082 275.2)
-
Step 400
400
#8999F2
oklch(70.8% 0.131 274.8)
-
Step 500
500
#6E7DED
oklch(63.2% 0.167 274.8)
-
Step 600
600 (this color)
#5863DC
oklch(55.7% 0.183 274.9)
-
Step 700
700
#4851BF
oklch(49.2% 0.17 274.7)
-
Step 800
800
#3B439A
oklch(42.7% 0.14 274.8)
-
Step 900
900
#323A7B
oklch(37.8% 0.11 274.6)
-
Step 950
950
#1D2248
oklch(27% 0.07 275)
#5863DC 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) | #0076E0 | 0.067 |
| Deuteranopia (no green cones) | #006ADA | 0.061 |
| Tritanopia (no blue cones) | #008096 | 0.158 |
| Achromatopsia (no color) | #707070 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5863DC
#5863DC
oklch(55.7% 0.183 274.9)
- #897200
#897200
oklch(55.8% 0.114 94.9)
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 #5863DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.026
- Royal Blue #4169E1 ΔE 0.028
- Warm Blue #4B57DB ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.037
- Neon Blue #4361EE ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.039
- Iris #6258C4 ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.060
Use #5863DC 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.