#660CF0
Closest named color: Purply Blue (#661AEE). oklch(49.1% 0.277 287.4), rgb(102, 12, 240).
Aa
White text reads best on this color (7.30:1).
About this color
#660CF0 is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.277 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Purply Blue (#661AEE), ΔE 0.008 away. White text reads best on it, at 7.30:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.277) |
| Temperature | cool |
| Nearest name | Purply Blue (#661AEE) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #660CF0 |
| RGB | rgb(102, 12, 240) |
| HSL | hsl(264, 90%, 49%) |
| OKLCH | oklch(49.1% 0.277 287.4) |
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 #660CF0 | 7.30:1 | AAA | Lc -88.1 | Fine for body text |
| Black text on #660CF0 | 2.87:1 | Fails | Lc 21.0 | Dividers and decoration only |
| #660CF0 text on white | 7.30:1 | AAA | Lc 83.1 | Fine for body text |
| #660CF0 text on black | 2.87:1 | Fails | Lc -18.9 | 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 700.
-
Step 50
50
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E8E7FF
oklch(93.6% 0.032 287.7)
-
Step 200
200
#D6D4FF
oklch(88.5% 0.059 287.3)
-
Step 300
300
#BCB7FF
oklch(80.9% 0.101 287.1)
-
Step 400
400
#9C8DFF
oklch(70.6% 0.163 287.5)
-
Step 500
500
#876BFF
oklch(63.1% 0.211 287.5)
-
Step 600
600
#753FFF
oklch(55.6% 0.261 287.4)
-
Step 700
700 (this color)
#660CF0
oklch(49.1% 0.277 287.4)
-
Step 800
800
#5217C2
oklch(42.7% 0.23 287.1)
-
Step 900
900
#432198
oklch(37.7% 0.178 287.6)
-
Step 950
950
#261659
oklch(26.9% 0.113 287.1)
#660CF0 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) | #005BF5 | 0.128 |
| Deuteranopia (no green cones) | #0050ED | 0.118 |
| Tritanopia (no blue cones) | #1B628D | 0.223 |
| Achromatopsia (no color) | #565656 | 0.280 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660CF0
#660CF0
oklch(49.1% 0.277 287.4)
- #686400
#686400
oklch(49.1% 0.105 107)
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 #660CF0, closest first.
No curated palette has a color within ΔE 0.04 of #660CF0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purply Blue #661AEE ΔE 0.008
- Blue Purple #5A06EF ΔE 0.024
- Purpley Blue #5F34E7 ΔE 0.036
- Burple #6832E3 ΔE 0.037
- Purple Blue #5D21D0 ΔE 0.051
- Blurple #5539CC ΔE 0.069
- Violet Blue #510AC9 ΔE 0.073
- Light Royal Blue #3A2EFE ΔE 0.077
Use #660CF0 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.