#5763DA
Closest named color: Dark Periwinkle (#665FD1). oklch(55.5% 0.18 274.6), rgb(87, 99, 218).
Aa
White text reads best on this color (4.99:1).
About this color
#5763DA is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.180 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.025 away. White text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.180) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #5763DA |
| RGB | rgb(87, 99, 218) |
| HSL | hsl(235, 64%, 60%) |
| OKLCH | oklch(55.5% 0.18 274.6) |
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 #5763DA | 4.99:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #5763DA | 4.20:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #5763DA text on white | 4.99:1 | AA | Lc 74.2 | Content text, not long reading |
| #5763DA text on black | 4.20:1 | AA large text | Lc -27.5 | 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
#D0D8F8
oklch(88.6% 0.045 274.4)
-
Step 300
300
#B0BDF6
oklch(80.8% 0.082 274.5)
-
Step 400
400
#8999F1
oklch(70.7% 0.13 274.8)
-
Step 500
500
#6D7DEC
oklch(63.1% 0.166 274.5)
-
Step 600
600 (this color)
#5763DA
oklch(55.5% 0.18 274.6)
-
Step 700
700
#4851BD
oklch(49% 0.168 274.8)
-
Step 800
800
#3B4399
oklch(42.6% 0.139 274.9)
-
Step 900
900
#323A7A
oklch(37.8% 0.108 274.7)
-
Step 950
950
#1D2247
oklch(26.9% 0.068 275)
#5763DA 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) | #0775DE | 0.064 |
| Deuteranopia (no green cones) | #006AD8 | 0.060 |
| Tritanopia (no blue cones) | #007F95 | 0.155 |
| Achromatopsia (no color) | #6F6F6F | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5763DA
#5763DA
oklch(55.5% 0.18 274.6)
- #887100
#887100
oklch(55.4% 0.114 94.8)
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 #5763DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.025
- Royal Blue #4169E1 ΔE 0.028
- Warm Blue #4B57DB ΔE 0.034
- Slate Blue #6A5ACD ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.038
- Neon Blue #4361EE ΔE 0.039
- Iris #6258C4 ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.062
Use #5763DA 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.