#866FBB
Closest named color: Deep Lilac (#966EBD). oklch(59.5% 0.115 296.7), rgb(134, 111, 187).
Aa
Black text reads best on this color (5.00:1).
About this color
#866FBB is a medium-dark, moderately saturated purple. In OKLCH its lightness is 60%, its chroma 0.115 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lilac (#966EBD), ΔE 0.026 away. Black text reads best on it, at 5.00:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Deep Lilac (#966EBD) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #866FBB |
| RGB | rgb(134, 111, 187) |
| HSL | hsl(258, 36%, 58%) |
| OKLCH | oklch(59.5% 0.115 296.7) |
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 #866FBB | 4.19:1 | AA large text | Lc -74.3 | Content text, not long reading |
| Black text on #866FBB | 5.00:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #866FBB text on white | 4.19:1 | AA large text | Lc 68.8 | Content text, not long reading |
| #866FBB text on black | 5.00:1 | AA | Lc -32.8 | 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 500.
-
Step 50
50
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F4
oklch(93.7% 0.016 297.5)
-
Step 200
200
#DBD5EC
oklch(88.5% 0.032 297.7)
-
Step 300
300
#C4BAE1
oklch(81% 0.055 296.9)
-
Step 400
400
#A695D3
oklch(70.7% 0.091 296.6)
-
Step 500
500 (this color)
#866FBB
oklch(59.5% 0.115 296.7)
-
Step 600
600
#7B61B3
oklch(55.5% 0.126 296.7)
-
Step 700
700
#68509A
oklch(49% 0.117 296.8)
-
Step 800
800
#55427D
oklch(42.7% 0.097 297)
-
Step 900
900
#463865
oklch(37.7% 0.076 296.9)
-
Step 950
950
#29213B
oklch(27% 0.048 297.2)
#866FBB 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) | #5A7CBE | 0.066 |
| Deuteranopia (no green cones) | #5E7BB9 | 0.062 |
| Tritanopia (no blue cones) | #7B7C8C | 0.092 |
| Achromatopsia (no color) | #7C7C7C | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #866FBB
#866FBB
oklch(59.5% 0.115 296.7)
- #7B872C
#7B872C
oklch(59.5% 0.115 116.4)
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 #866FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lilac #966EBD ΔE 0.026
- Deep Lavender #8D5EB7 ΔE 0.042
- Dark Lilac #9C6DA5 ΔE 0.048
- Amethyst #9B5FC0 ΔE 0.051
- Medium Purple #9370DB ΔE 0.053
- Dark Lavender #856798 ΔE 0.054
- Soft Purple #A66FB5 ΔE 0.054
- Faded Purple #916E99 ΔE 0.055
Use #866FBB 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.