#6B68CC
Closest named color: Dark Periwinkle (#665FD1). oklch(56.9% 0.15 281.9), rgb(107, 104, 204).
Aa
White text reads best on this color (4.69:1).
About this color
#6B68CC is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.150 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.026 away. White text reads best on it, at 4.69:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.47:1 |
| White text | 4.69:1 |
Values
| HEX | #6B68CC |
| RGB | rgb(107, 104, 204) |
| HSL | hsl(242, 50%, 60%) |
| OKLCH | oklch(56.9% 0.15 281.9) |
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 #6B68CC | 4.69:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #6B68CC | 4.47:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #6B68CC text on white | 4.69:1 | AA | Lc 72.4 | Content text, not long reading |
| #6B68CC text on black | 4.47:1 | AA large text | Lc -29.3 | 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
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F2
oklch(88.5% 0.037 280.6)
-
Step 300
300
#B9BCEC
oklch(80.9% 0.068 282)
-
Step 400
400
#9698E2
oklch(70.7% 0.108 282.1)
-
Step 500
500
#7D7DDA
oklch(63.1% 0.138 281.7)
-
Step 600
600 (this color)
#6B68CC
oklch(56.9% 0.15 281.9)
-
Step 700
700
#5652AD
oklch(49% 0.141 281.8)
-
Step 800
800
#46448C
oklch(42.7% 0.116 281.5)
-
Step 900
900
#3B3A70
oklch(37.8% 0.09 282)
-
Step 950
950
#222241
oklch(26.9% 0.057 281.9)
#6B68CC 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) | #3B77D0 | 0.062 |
| Deuteranopia (no green cones) | #3570CA | 0.063 |
| Tritanopia (no blue cones) | #497D90 | 0.129 |
| Achromatopsia (no color) | #747474 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B68CC
#6B68CC
oklch(56.9% 0.15 281.9)
- #867900
#867900
oklch(57% 0.119 101.9)
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 #6B68CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.026
- Light Indigo #6D5ACF ΔE 0.034
- Slate Blue #6A5ACD ΔE 0.035
- Iris #6258C4 ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.057
- Royal Blue #4169E1 ΔE 0.060
- Deep Lavender #8D5EB7 ΔE 0.064
- Purpley #8756E4 ΔE 0.069
Use #6B68CC 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.