#6C6BCD
Closest named color: Dark Periwinkle (#665FD1). oklch(57.6% 0.147 281.2), rgb(108, 107, 205).
Aa
Black text reads best on this color (4.62:1).
About this color
#6C6BCD is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.147 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.033 away. Black text reads best on it, at 4.62:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #6C6BCD |
| RGB | rgb(108, 107, 205) |
| HSL | hsl(241, 49%, 61%) |
| OKLCH | oklch(57.6% 0.147 281.2) |
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 #6C6BCD | 4.54:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #6C6BCD | 4.62:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #6C6BCD text on white | 4.54:1 | AA | Lc 71.4 | Content text, not long reading |
| #6C6BCD text on black | 4.62:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F2
oklch(88.5% 0.037 280.6)
-
Step 300
300
#B8BCEB
oklch(80.8% 0.066 281)
-
Step 400
400
#9599E1
oklch(70.8% 0.105 280.9)
-
Step 500
500
#7C7DD9
oklch(63% 0.136 281.3)
-
Step 600
600 (this color)
#6C6BCD
oklch(57.6% 0.147 281.2)
-
Step 700
700
#5553AB
oklch(49% 0.137 281.1)
-
Step 800
800
#46458B
oklch(42.8% 0.113 281.1)
-
Step 900
900
#3A3A6F
oklch(37.6% 0.089 281.2)
-
Step 950
950
#222241
oklch(26.9% 0.057 281.9)
#6C6BCD 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) | #417AD1 | 0.058 |
| Deuteranopia (no green cones) | #3A72CB | 0.059 |
| Tritanopia (no blue cones) | #4A8092 | 0.128 |
| Achromatopsia (no color) | #767676 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C6BCD
#6C6BCD
oklch(57.6% 0.147 281.2)
- #897A00
#897A00
oklch(57.5% 0.12 100.8)
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 #6C6BCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.033
- Light Indigo #6D5ACF ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.042
- Iris #6258C4 ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.056
- Royal Blue #4169E1 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.065
- Medium Purple #9370DB ΔE 0.066
Use #6C6BCD 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.