#866FB1
Closest named color: Deep Lilac (#966EBD). oklch(59% 0.101 299.3), rgb(134, 111, 177).
Aa
Black text reads best on this color (4.92:1).
About this color
#866FB1 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 59%, its chroma 0.101 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.033 away. Black text reads best on it, at 4.92:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #866FB1 |
| RGB | rgb(134, 111, 177) |
| HSL | hsl(261, 30%, 56%) |
| OKLCH | oklch(59% 0.101 299.3) |
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 #866FB1 | 4.26:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #866FB1 | 4.92:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #866FB1 text on white | 4.26:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #866FB1 text on black | 4.92:1 | AA | Lc -32.2 | Non-text elements, placeholder text |
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
#F6F5F9
oklch(97.2% 0.005 297.7)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DBD6E8
oklch(88.5% 0.025 298.6)
-
Step 300
300
#C4BBDB
oklch(81% 0.046 298.2)
-
Step 400
400
#A797C8
oklch(70.8% 0.072 299.5)
-
Step 500
500
#917DBA
oklch(63.1% 0.092 298.8)
-
Step 600
600 (this color)
#866FB1
oklch(59% 0.101 299.3)
-
Step 700
700
#69548E
oklch(49.2% 0.093 299.7)
-
Step 800
800
#554574
oklch(42.8% 0.078 298.7)
-
Step 900
900
#463A5D
oklch(37.7% 0.06 299.3)
-
Step 950
950
#292237
oklch(27% 0.039 299.1)
#866FB1 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) | #5F7AB4 | 0.059 |
| Deuteranopia (no green cones) | #637AAF | 0.056 |
| Tritanopia (no blue cones) | #7E7A88 | 0.080 |
| Achromatopsia (no color) | #7A7A7A | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866FB1
#866FB1
oklch(59% 0.101 299.3)
- #76863B
#76863B
oklch(59% 0.102 119.7)
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 #866FB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.033
- Dark Lavender #856798 ΔE 0.040
- Dark Lilac #9C6DA5 ΔE 0.040
- Faded Purple #916E99 ΔE 0.041
- Deep Lavender #8D5EB7 ΔE 0.046
- Soft Purple #A66FB5 ΔE 0.054
- Grey Purple #826D8C ΔE 0.058
- Amethyst #9B5FC0 ΔE 0.058
Use #866FB1 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.