#6B5DD3
Closest named color: Dark Periwinkle (#665FD1). oklch(55.4% 0.175 284.5), rgb(107, 93, 211).
Aa
White text reads best on this color (5.08:1).
About this color
#6B5DD3 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.175 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.009 away. White text reads best on it, at 5.08:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.175) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.13:1 |
| White text | 5.08:1 |
Values
| HEX | #6B5DD3 |
| RGB | rgb(107, 93, 211) |
| HSL | hsl(247, 57%, 60%) |
| OKLCH | oklch(55.4% 0.175 284.5) |
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 #6B5DD3 | 5.08:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #6B5DD3 | 4.13:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #6B5DD3 text on white | 5.08:1 | AA | Lc 74.8 | Content text, not long reading |
| #6B5DD3 text on black | 4.13:1 | AA large text | Lc -26.9 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D5D6F6
oklch(88.5% 0.044 284)
-
Step 300
300
#BABAF2
oklch(80.8% 0.079 284.5)
-
Step 400
400
#9895EC
oklch(70.8% 0.126 284.3)
-
Step 500
500
#8178E6
oklch(63.2% 0.161 284.5)
-
Step 600
600 (this color)
#6B5DD3
oklch(55.4% 0.175 284.5)
-
Step 700
700
#5A4CB7
oklch(49% 0.163 284.6)
-
Step 800
800
#493F94
oklch(42.6% 0.135 284.5)
-
Step 900
900
#3D3776
oklch(37.7% 0.104 284.6)
-
Step 950
950
#232145
oklch(27% 0.065 283.6)
#6B5DD3 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) | #0D72D7 | 0.090 |
| Deuteranopia (no green cones) | #006BD0 | 0.091 |
| Tritanopia (no blue cones) | #45788F | 0.148 |
| Achromatopsia (no color) | #6E6E6E | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B5DD3
#6B5DD3
oklch(55.4% 0.175 284.5)
- #7E7500
#7E7500
oklch(55.3% 0.117 104.2)
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 #6B5DD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.009
- Light Indigo #6D5ACF ΔE 0.009
- Slate Blue #6A5ACD ΔE 0.011
- Iris #6258C4 ΔE 0.030
- Warm Blue #4B57DB ΔE 0.051
- Purpley #8756E4 ΔE 0.053
- Medium Slate Blue #7B68EE ΔE 0.054
- Royal Blue #4169E1 ΔE 0.059
Use #6B5DD3 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.