#6B63E9
Closest named color: Medium Slate Blue (#7B68EE). oklch(58% 0.196 281.1), rgb(107, 99, 233).
Aa
Black text reads best on this color (4.58:1).
About this color
#6B63E9 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.196 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.029 away. Black text reads best on it, at 4.58:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #6B63E9 |
| RGB | rgb(107, 99, 233) |
| HSL | hsl(244, 75%, 65%) |
| OKLCH | oklch(58% 0.196 281.1) |
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 #6B63E9 | 4.57:1 | AA | Lc -76.9 | Fine for body text |
| Black text on #6B63E9 | 4.58:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #6B63E9 text on white | 4.57:1 | AA | Lc 71.4 | Content text, not long reading |
| #6B63E9 text on black | 4.58:1 | AA | Lc -30.3 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D3D6FA
oklch(88.5% 0.05 281.6)
-
Step 300
300
#B6BAF9
oklch(80.8% 0.089 281.4)
-
Step 400
400
#9294F6
oklch(70.6% 0.142 281.2)
-
Step 500
500
#7A76F2
oklch(63.1% 0.181 281.3)
-
Step 600
600 (this color)
#6B63E9
oklch(58% 0.196 281.1)
-
Step 700
700
#544AC3
oklch(49.1% 0.182 281.1)
-
Step 800
800
#443E9E
oklch(42.8% 0.151 280.7)
-
Step 900
900
#39367D
oklch(37.7% 0.117 281.1)
-
Step 950
950
#212049
oklch(26.9% 0.074 281.3)
#6B63E9 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) | #007AED | 0.088 |
| Deuteranopia (no green cones) | #0071E6 | 0.085 |
| Tritanopia (no blue cones) | #30829C | 0.168 |
| Achromatopsia (no color) | #757575 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B63E9
#6B63E9
oklch(58% 0.196 281.1)
- #8A7B00
#8A7B00
oklch(57.9% 0.121 100.8)
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 #6B63E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.029
- Dark Periwinkle #665FD1 ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.043
- Slate Blue #6A5ACD ΔE 0.046
- Purpley #8756E4 ΔE 0.050
- Neon Blue #4361EE ΔE 0.053
- Royal Blue #4169E1 ΔE 0.054
- Cornflower #6A79F7 ΔE 0.054
Use #6B63E9 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.