#6B65BF
Closest named color: Dark Periwinkle (#665FD1). oklch(55.5% 0.136 284), rgb(107, 101, 191).
Aa
White text reads best on this color (4.95:1).
About this color
#6B65BF is a medium-dark, moderately saturated purple. In OKLCH its lightness is 56%, its chroma 0.136 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.035 away. White text reads best on it, at 4.95:1.
| Hue family | Purples |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.23:1 |
| White text | 4.95:1 |
Values
| HEX | #6B65BF |
| RGB | rgb(107, 101, 191) |
| HSL | hsl(244, 41%, 57%) |
| OKLCH | oklch(55.5% 0.136 284) |
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 #6B65BF | 4.95:1 | AA | Lc -79.5 | Fine for body text |
| Black text on #6B65BF | 4.23:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #6B65BF text on white | 4.95:1 | AA | Lc 74.1 | Content text, not long reading |
| #6B65BF text on black | 4.23:1 | AA large text | Lc -27.6 | 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
#E8E9F6
oklch(93.7% 0.018 282.5)
-
Step 200
200
#D6D7F0
oklch(88.6% 0.034 283.9)
-
Step 300
300
#BBBCE8
oklch(80.9% 0.062 283.9)
-
Step 400
400
#9998DC
oklch(70.7% 0.099 284.3)
-
Step 500
500
#817ED2
oklch(63.2% 0.124 283.9)
-
Step 600
600 (this color)
#6B65BF
oklch(55.5% 0.136 284)
-
Step 700
700
#5A54A5
oklch(49.2% 0.126 284.1)
-
Step 800
800
#494586
oklch(42.7% 0.105 283.8)
-
Step 900
900
#3D3A6B
oklch(37.6% 0.082 284.5)
-
Step 950
950
#24223F
oklch(27% 0.053 285.4)
#6B65BF 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) | #4173C2 | 0.058 |
| Deuteranopia (no green cones) | #3D6DBD | 0.058 |
| Tritanopia (no blue cones) | #517889 | 0.117 |
| Achromatopsia (no color) | #707070 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B65BF
#6B65BF
oklch(55.5% 0.136 284)
- #7F7600
#7F7600
oklch(55.6% 0.118 104.3)
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 #6B65BF, closest first.
No curated palette has a color within ΔE 0.04 of #6B65BF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.035
- Slate Blue #6A5ACD ΔE 0.037
- Iris #6258C4 ΔE 0.039
- Light Indigo #6D5ACF ΔE 0.039
- Deep Lavender #8D5EB7 ΔE 0.057
- French Blue #436BAD ΔE 0.062
- Royal Blue #4169E1 ΔE 0.072
- Windows Blue #3778BF ΔE 0.072
Use #6B65BF 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.