#816CDD
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.5% 0.166 289), rgb(129, 108, 221).
Aa
Black text reads best on this color (5.12:1).
About this color
#816CDD is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.166 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.030 away. Black text reads best on it, at 5.12:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #816CDD |
| RGB | rgb(129, 108, 221) |
| HSL | hsl(251, 62%, 65%) |
| OKLCH | oklch(60.5% 0.166 289) |
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 #816CDD | 4.09:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #816CDD | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #816CDD text on white | 4.09:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #816CDD text on black | 5.12:1 | AA | Lc -33.7 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D7D5F6
oklch(88.5% 0.045 288.2)
-
Step 300
300
#BEB9F2
oklch(80.9% 0.08 288.5)
-
Step 400
400
#9E92EC
oklch(70.7% 0.13 288.7)
-
Step 500
500 (this color)
#816CDD
oklch(60.5% 0.166 289)
-
Step 600
600
#745AD4
oklch(55.7% 0.18 289)
-
Step 700
700
#6149B8
oklch(49.2% 0.168 288.6)
-
Step 800
800
#4F3C95
oklch(42.7% 0.14 288.9)
-
Step 900
900
#413576
oklch(37.7% 0.107 288.7)
-
Step 950
950
#261F45
oklch(26.9% 0.069 289.4)
#816CDD 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) | #3B80E1 | 0.089 |
| Deuteranopia (no green cones) | #3C7BDA | 0.087 |
| Tritanopia (no blue cones) | #67849A | 0.139 |
| Achromatopsia (no color) | #7D7D7D | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #816CDD
#816CDD
oklch(60.5% 0.166 289)
- #898700
#898700
oklch(60.5% 0.131 108.7)
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 #816CDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.030
- Medium Purple #9370DB ΔE 0.032
- Purpley #8756E4 ΔE 0.051
- Cornflower #6A79F7 ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.058
- Deep Lilac #966EBD ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.063
Use #816CDD 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.