#5C64C6
Closest named color: Dark Periwinkle (#665FD1). oklch(54.6% 0.15 276.7), rgb(92, 100, 198).
Aa
White text reads best on this color (5.13:1).
About this color
#5C64C6 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.150 and its hue 277°. 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 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #5C64C6 |
| RGB | rgb(92, 100, 198) |
| HSL | hsl(235, 48%, 57%) |
| OKLCH | oklch(54.6% 0.15 276.7) |
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 #5C64C6 | 5.13:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #5C64C6 | 4.09:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #5C64C6 text on white | 5.13:1 | AA | Lc 75.1 | Fine for body text |
| #5C64C6 text on black | 4.09:1 | AA large text | Lc -26.6 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F3
oklch(88.6% 0.038 275.7)
-
Step 300
300
#B5BDED
oklch(80.9% 0.068 277.4)
-
Step 400
400
#8F9AE4
oklch(70.7% 0.109 276.8)
-
Step 500
500
#757FDC
oklch(63% 0.139 277)
-
Step 600
600 (this color)
#5C64C6
oklch(54.6% 0.15 276.7)
-
Step 700
700
#4E55AE
oklch(49.1% 0.14 276.6)
-
Step 800
800
#40468D
oklch(42.7% 0.116 276.7)
-
Step 900
900
#363B71
oklch(37.6% 0.092 277.1)
-
Step 950
950
#1F2342
oklch(26.9% 0.058 276.3)
#5C64C6 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) | #3472CA | 0.051 |
| Deuteranopia (no green cones) | #2769C4 | 0.054 |
| Tritanopia (no blue cones) | #2A7A8C | 0.132 |
| Achromatopsia (no color) | #6E6E6E | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C64C6
#5C64C6
oklch(54.6% 0.15 276.7)
- #847000
#847000
oklch(54.8% 0.113 96.7)
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 #5C64C6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.026
- Iris #6258C4 ΔE 0.030
- Slate Blue #6A5ACD ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.036
- Royal Blue #4169E1 ΔE 0.050
- Warm Blue #4B57DB ΔE 0.054
- French Blue #436BAD ΔE 0.055
- Windows Blue #3778BF ΔE 0.064
Use #5C64C6 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.