#5D64E3
Closest named color: Dark Periwinkle (#665FD1). oklch(56.7% 0.19 276.2), rgb(93, 100, 227).
Aa
White text reads best on this color (4.77:1).
About this color
#5D64E3 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.190 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.031 away. White text reads best on it, at 4.77:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.39:1 |
| White text | 4.77:1 |
Values
| HEX | #5D64E3 |
| RGB | rgb(93, 100, 227) |
| HSL | hsl(237, 71%, 63%) |
| OKLCH | oklch(56.7% 0.19 276.2) |
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 #5D64E3 | 4.77:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #5D64E3 | 4.39:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #5D64E3 text on white | 4.77:1 | AA | Lc 72.8 | Content text, not long reading |
| #5D64E3 text on black | 4.39:1 | AA large text | Lc -28.9 | 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
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7F9
oklch(88.5% 0.047 276.2)
-
Step 300
300
#B1BCF8
oklch(80.8% 0.086 276.3)
-
Step 400
400
#8A98F5
oklch(70.8% 0.136 275.9)
-
Step 500
500
#707BF0
oklch(63.1% 0.173 276.2)
-
Step 600
600 (this color)
#5D64E3
oklch(56.7% 0.19 276.2)
-
Step 700
700
#4A4FC2
oklch(49.2% 0.176 275.9)
-
Step 800
800
#3D419D
oklch(42.7% 0.147 276.3)
-
Step 900
900
#33387C
oklch(37.6% 0.114 276.3)
-
Step 950
950
#1E2249
oklch(27.1% 0.072 276.1)
#5D64E3 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) | #0078E7 | 0.071 |
| Deuteranopia (no green cones) | #006DE0 | 0.067 |
| Tritanopia (no blue cones) | #00829A | 0.163 |
| Achromatopsia (no color) | #737373 | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D64E3
#5D64E3
oklch(56.7% 0.19 276.2)
- #8B7500
#8B7500
oklch(56.6% 0.116 95.9)
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 #5D64E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.031
- Royal Blue #4169E1 ΔE 0.033
- Neon Blue #4361EE ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.042
- Warm Blue #4B57DB ΔE 0.043
- Medium Slate Blue #7B68EE ΔE 0.049
- Iris #6258C4 ΔE 0.053
Use #5D64E3 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.