#6C6EBB
Closest named color: Dark Periwinkle (#665FD1). oklch(57.1% 0.117 280.9), rgb(108, 110, 187).
Aa
Black text reads best on this color (4.58:1).
About this color
#6C6EBB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 57%, its chroma 0.117 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.056 away. Black text reads best on it, at 4.58:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #6C6EBB |
| RGB | rgb(108, 110, 187) |
| HSL | hsl(238, 37%, 58%) |
| OKLCH | oklch(57.1% 0.117 280.9) |
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 #6C6EBB | 4.57:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #6C6EBB | 4.58:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #6C6EBB text on white | 4.57:1 | AA | Lc 71.7 | Content text, not long reading |
| #6C6EBB text on black | 4.58:1 | AA | Lc -30.0 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D7ED
oklch(88.4% 0.03 281.6)
-
Step 300
300
#BABDE3
oklch(80.9% 0.054 281.6)
-
Step 400
400
#979BD5
oklch(70.8% 0.085 280.9)
-
Step 500
500
#7E81C9
oklch(63.1% 0.108 281)
-
Step 600
600 (this color)
#6C6EBB
oklch(57.1% 0.117 280.9)
-
Step 700
700
#56589D
oklch(49.2% 0.109 280.3)
-
Step 800
800
#47487F
oklch(42.8% 0.09 281.1)
-
Step 900
900
#3B3D66
oklch(37.8% 0.07 280.4)
-
Step 950
950
#23243C
oklch(27.1% 0.044 281.2)
#6C6EBB 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) | #5278BE | 0.039 |
| Deuteranopia (no green cones) | #4E73B9 | 0.040 |
| Tritanopia (no blue cones) | #537D8B | 0.102 |
| Achromatopsia (no color) | #757575 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C6EBB
#6C6EBB
oklch(57.1% 0.117 280.9)
- #877906
#877906
oklch(57.1% 0.118 101.1)
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 #6C6EBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.056
- French Blue #436BAD ΔE 0.059
- Windows Blue #3778BF ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.062
- Deep Lavender #8D5EB7 ΔE 0.062
- Light Indigo #6D5ACF ΔE 0.063
- Iris #6258C4 ΔE 0.064
- Dark Lavender #856798 ΔE 0.064
Use #6C6EBB 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.