#6B5ECF
Closest named color: Dark Periwinkle (#665FD1). oklch(55.3% 0.168 284.7), rgb(107, 94, 207).
Aa
White text reads best on this color (5.08:1).
About this color
#6B5ECF is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.168 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.008 away. White text reads best on it, at 5.08:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.12:1 |
| White text | 5.08:1 |
Values
| HEX | #6B5ECF |
| RGB | rgb(107, 94, 207) |
| HSL | hsl(247, 54%, 59%) |
| OKLCH | oklch(55.3% 0.168 284.7) |
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 #6B5ECF | 5.08:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #6B5ECF | 4.12:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #6B5ECF text on white | 5.08:1 | AA | Lc 74.8 | Content text, not long reading |
| #6B5ECF text on black | 4.12:1 | AA large text | Lc -26.9 | 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 600.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D5D6F5
oklch(88.5% 0.042 284)
-
Step 300
300
#BBBAF0
oklch(80.8% 0.076 285.4)
-
Step 400
400
#9995E9
oklch(70.7% 0.121 285)
-
Step 500
500
#8179E2
oklch(63.1% 0.154 284.5)
-
Step 600
600 (this color)
#6B5ECF
oklch(55.3% 0.168 284.7)
-
Step 700
700
#5A4EB4
oklch(49.1% 0.156 284.4)
-
Step 800
800
#4A4092
oklch(42.7% 0.13 285)
-
Step 900
900
#3D3774
oklch(37.6% 0.101 284.9)
-
Step 950
950
#242144
oklch(27.1% 0.064 285.2)
#6B5ECF 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) | #1D72D3 | 0.085 |
| Deuteranopia (no green cones) | #166BCD | 0.086 |
| Tritanopia (no blue cones) | #48778D | 0.143 |
| Achromatopsia (no color) | #6E6E6E | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B5ECF
#6B5ECF
oklch(55.3% 0.168 284.7)
- #7D7500
#7D7500
oklch(55.2% 0.117 104.8)
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 #6B5ECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.008
- Light Indigo #6D5ACF ΔE 0.009
- Slate Blue #6A5ACD ΔE 0.010
- Iris #6258C4 ΔE 0.026
- Warm Blue #4B57DB ΔE 0.054
- Purpley #8756E4 ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.058
- Royal Blue #4169E1 ΔE 0.060
Use #6B5ECF 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.