#5A65C4
Closest named color: Dark Periwinkle (#665FD1). oklch(54.6% 0.147 275.5), rgb(90, 101, 196).
Aa
White text reads best on this color (5.13:1).
About this color
#5A65C4 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.147 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.030 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #5A65C4 |
| RGB | rgb(90, 101, 196) |
| HSL | hsl(234, 47%, 56%) |
| OKLCH | oklch(54.6% 0.147 275.5) |
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 #5A65C4 | 5.13:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #5A65C4 | 4.09:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #5A65C4 text on white | 5.13:1 | AA | Lc 75.2 | Fine for body text |
| #5A65C4 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
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B4BEEC
oklch(80.9% 0.066 275.3)
-
Step 400
400
#8E9BE2
oklch(70.7% 0.105 275.4)
-
Step 500
500
#7381DA
oklch(63.2% 0.134 275.1)
-
Step 600
600 (this color)
#5A65C4
oklch(54.6% 0.147 275.5)
-
Step 700
700
#4D56AC
oklch(49.1% 0.136 275.7)
-
Step 800
800
#3F478C
oklch(42.8% 0.113 275.6)
-
Step 900
900
#353C70
oklch(37.7% 0.089 275.5)
-
Step 950
950
#1F2341
oklch(26.9% 0.056 276.2)
#5A65C4 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) | #3872C7 | 0.045 |
| Deuteranopia (no green cones) | #2B69C2 | 0.049 |
| Tritanopia (no blue cones) | #267A8B | 0.129 |
| Achromatopsia (no color) | #6E6E6E | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A65C4
#5A65C4
oklch(54.6% 0.147 275.5)
- #846F00
#846F00
oklch(54.5% 0.112 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 #5A65C4, closest first.
No curated palette has a color within ΔE 0.04 of #5A65C4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.030
- Iris #6258C4 ΔE 0.033
- Slate Blue #6A5ACD ΔE 0.037
- Light Indigo #6D5ACF ΔE 0.041
- French Blue #436BAD ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Warm Blue #4B57DB ΔE 0.056
- Windows Blue #3778BF ΔE 0.060
Use #5A65C4 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.