#6A6BCB
Closest named color: Dark Periwinkle (#665FD1). oklch(57.3% 0.145 280.4), rgb(106, 107, 203).
Aa
White text reads best on this color (4.58:1).
About this color
#6A6BCB is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.145 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.033 away. White text reads best on it, at 4.58:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.57:1 |
| White text | 4.58:1 |
Values
| HEX | #6A6BCB |
| RGB | rgb(106, 107, 203) |
| HSL | hsl(239, 48%, 61%) |
| OKLCH | oklch(57.3% 0.145 280.4) |
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 #6A6BCB | 4.58:1 | AA | Lc -77.1 | Fine for body text |
| Black text on #6A6BCB | 4.57:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #6A6BCB text on white | 4.58:1 | AA | Lc 71.7 | Content text, not long reading |
| #6A6BCB text on black | 4.57:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F1
oklch(88.5% 0.036 280.4)
-
Step 300
300
#B8BDEB
oklch(81% 0.065 280)
-
Step 400
400
#9499E1
oklch(70.7% 0.105 280.3)
-
Step 500
500
#7B7ED8
oklch(63.1% 0.134 280.4)
-
Step 600
600 (this color)
#6A6BCB
oklch(57.3% 0.145 280.4)
-
Step 700
700
#5454AA
oklch(49% 0.134 280.2)
-
Step 800
800
#45458A
oklch(42.7% 0.112 280.6)
-
Step 900
900
#3A3B6E
oklch(37.8% 0.086 280.6)
-
Step 950
950
#222341
oklch(27.1% 0.055 280.6)
#6A6BCB 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) | #4279CF | 0.054 |
| Deuteranopia (no green cones) | #3B72C9 | 0.055 |
| Tritanopia (no blue cones) | #477F91 | 0.125 |
| Achromatopsia (no color) | #757575 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A6BCB
#6A6BCB
oklch(57.3% 0.145 280.4)
- #897900
#897900
oklch(57.3% 0.119 100.1)
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 #6A6BCB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.033
- Slate Blue #6A5ACD ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.042
- Iris #6258C4 ΔE 0.050
- Medium Slate Blue #7B68EE ΔE 0.060
- Royal Blue #4169E1 ΔE 0.061
- Deep Lavender #8D5EB7 ΔE 0.066
- Windows Blue #3778BF ΔE 0.068
Use #6A6BCB 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.