#5B68D5
Closest named color: Dark Periwinkle (#665FD1). oklch(56.4% 0.166 274.7), rgb(91, 104, 213).
Aa
White text reads best on this color (4.78:1).
About this color
#5B68D5 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.166 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 4.78:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.38:1 |
| White text | 4.78:1 |
Values
| HEX | #5B68D5 |
| RGB | rgb(91, 104, 213) |
| HSL | hsl(234, 59%, 60%) |
| OKLCH | oklch(56.4% 0.166 274.7) |
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 #5B68D5 | 4.78:1 | AA | Lc -78.4 | Fine for body text |
| Black text on #5B68D5 | 4.38:1 | AA large text | Lc 31.1 | Non-text elements, placeholder text |
| #5B68D5 text on white | 4.78:1 | AA | Lc 72.9 | Content text, not long reading |
| #5B68D5 text on black | 4.38:1 | AA large text | Lc -28.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F5
oklch(88.5% 0.041 273.3)
-
Step 300
300
#B2BEF2
oklch(81% 0.075 274.5)
-
Step 400
400
#8A9AEB
oklch(70.7% 0.12 274.4)
-
Step 500
500
#6F7FE4
oklch(63.1% 0.152 274.4)
-
Step 600
600 (this color)
#5B68D5
oklch(56.4% 0.166 274.7)
-
Step 700
700
#4954B6
oklch(49.1% 0.154 274.4)
-
Step 800
800
#3C4594
oklch(42.7% 0.129 274.7)
-
Step 900
900
#333B76
oklch(37.8% 0.1 274.8)
-
Step 950
950
#1E2345
oklch(27.1% 0.063 275.1)
#5B68D5 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) | #2C78D9 | 0.055 |
| Deuteranopia (no green cones) | #126DD3 | 0.060 |
| Tritanopia (no blue cones) | #068195 | 0.146 |
| Achromatopsia (no color) | #727272 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B68D5
#5B68D5
oklch(56.4% 0.166 274.7)
- #8B7400
#8B7400
oklch(56.4% 0.116 95.1)
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 #5B68D5, 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 0.034
- Slate Blue #6A5ACD ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.040
- Iris #6258C4 ΔE 0.045
- Warm Blue #4B57DB ΔE 0.050
- Neon Blue #4361EE ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.060
Use #5B68D5 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.