#6C6FBF
Closest named color: Dark Periwinkle (#665FD1). oklch(57.5% 0.122 280.2), rgb(108, 111, 191).
Aa
Black text reads best on this color (4.66:1).
About this color
#6C6FBF is a medium-dark, moderately saturated purple. In OKLCH its lightness is 58%, its chroma 0.122 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.054 away. Black text reads best on it, at 4.66:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.66:1 |
| White text | 4.50:1 |
Values
| HEX | #6C6FBF |
| RGB | rgb(108, 111, 191) |
| HSL | hsl(238, 39%, 59%) |
| OKLCH | oklch(57.5% 0.122 280.2) |
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 #6C6FBF | 4.50:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #6C6FBF | 4.66:1 | AA | Lc 32.9 | Non-text elements, placeholder text |
| #6C6FBF text on white | 4.50:1 | AA | Lc 71.1 | Content text, not long reading |
| #6C6FBF text on black | 4.66:1 | AA | Lc -30.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#B9BDE4
oklch(80.8% 0.055 280.5)
-
Step 400
400
#969BD7
oklch(70.8% 0.088 280.2)
-
Step 500
500
#7D81CC
oklch(63.1% 0.112 280.3)
-
Step 600
600 (this color)
#6C6FBF
oklch(57.5% 0.122 280.2)
-
Step 700
700
#55579F
oklch(49% 0.114 280.1)
-
Step 800
800
#464881
oklch(42.8% 0.093 280.2)
-
Step 900
900
#3A3C67
oklch(37.5% 0.073 280.2)
-
Step 950
950
#22243D
oklch(27.1% 0.046 279.3)
#6C6FBF 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) | #527AC2 | 0.040 |
| Deuteranopia (no green cones) | #4C74BD | 0.041 |
| Tritanopia (no blue cones) | #517F8E | 0.105 |
| Achromatopsia (no color) | #777777 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C6FBF
#6C6FBF
oklch(57.5% 0.122 280.2)
- #8A7A00
#8A7A00
oklch(57.6% 0.12 100.1)
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 #6C6FBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.060
- Windows Blue #3778BF ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.061
- French Blue #436BAD ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.063
- Iris #6258C4 ΔE 0.064
- Deep Lilac #966EBD ΔE 0.065
Use #6C6FBF 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.