#5C64FB
Closest named color: Neon Blue (#4361EE). oklch(58.5% 0.221 274.9), rgb(92, 100, 251).
Aa
Black text reads best on this color (4.67:1).
About this color
#5C64FB is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.221 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.038 away. Black text reads best on it, at 4.67:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.221) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #5C64FB |
| RGB | rgb(92, 100, 251) |
| HSL | hsl(237, 95%, 67%) |
| OKLCH | oklch(58.5% 0.221 274.9) |
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 #5C64FB | 4.49:1 | AA large text | Lc -76.2 | Fine for body text |
| Black text on #5C64FB | 4.67:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #5C64FB text on white | 4.49:1 | AA large text | Lc 70.7 | Content text, not long reading |
| #5C64FB text on black | 4.67:1 | AA | Lc -31.0 | Non-text elements, placeholder text |
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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CED7FE
oklch(88.5% 0.055 275)
-
Step 300
300
#AEBCFF
oklch(80.9% 0.096 274.9)
-
Step 400
400
#8696FF
oklch(70.7% 0.154 275.2)
-
Step 500
500
#6A77FF
oklch(63% 0.2 275)
-
Step 600
600 (this color)
#5C64FB
oklch(58.5% 0.221 274.9)
-
Step 700
700
#4649D2
oklch(49.2% 0.205 274.9)
-
Step 800
800
#393DA9
oklch(42.7% 0.169 275)
-
Step 900
900
#303686
oklch(37.8% 0.132 274.9)
-
Step 950
950
#1C204E
oklch(26.9% 0.084 275.5)
#5C64FB 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) | #007EFF | 0.074 |
| Deuteranopia (no green cones) | #0070F8 | 0.063 |
| Tritanopia (no blue cones) | #008AA6 | 0.184 |
| Achromatopsia (no color) | #777777 | 0.221 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C64FB
#5C64FB
oklch(58.5% 0.221 274.9)
- #927A00
#927A00
oklch(58.5% 0.12 95.2)
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 #5C64FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.038
- Medium Slate Blue #7B68EE ΔE 0.050
- Royal Blue #4169E1 ΔE 0.051
- Cornflower #6A79F7 ΔE 0.055
- Clear Blue #247AFD ΔE 0.063
- Warm Blue #4B57DB ΔE 0.063
- Bright Blue #0165FC ΔE 0.065
- Dark Periwinkle #665FD1 ΔE 0.065
Use #5C64FB 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.