#816BE0
Closest named color: Medium Slate Blue (#7B68EE). oklch(60.5% 0.171 288.9), rgb(129, 107, 224).
Aa
Black text reads best on this color (5.11:1).
About this color
#816BE0 is a medium-dark, vivid purple. In OKLCH its lightness is 61%, its chroma 0.171 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.025 away. Black text reads best on it, at 5.11:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #816BE0 |
| RGB | rgb(129, 107, 224) |
| HSL | hsl(251, 65%, 65%) |
| OKLCH | oklch(60.5% 0.171 288.9) |
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 #816BE0 | 4.10:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #816BE0 | 5.11:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #816BE0 text on white | 4.10:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #816BE0 text on black | 5.11:1 | 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
#E9E8FA
oklch(93.7% 0.024 288.5)
-
Step 200
200
#D7D5F7
oklch(88.5% 0.047 288.1)
-
Step 300
300
#BEB8F4
oklch(80.8% 0.084 288.9)
-
Step 400
400
#9E91EE
oklch(70.6% 0.134 288.9)
-
Step 500
500 (this color)
#816BE0
oklch(60.5% 0.171 288.9)
-
Step 600
600
#7458D7
oklch(55.6% 0.186 289)
-
Step 700
700
#6147BA
oklch(49% 0.173 288.8)
-
Step 800
800
#4F3B97
oklch(42.6% 0.144 288.8)
-
Step 900
900
#413478
oklch(37.7% 0.112 288.7)
-
Step 950
950
#261F46
oklch(27% 0.07 289.1)
#816BE0 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) | #3580E4 | 0.094 |
| Deuteranopia (no green cones) | #367ADD | 0.091 |
| Tritanopia (no blue cones) | #65849B | 0.143 |
| Achromatopsia (no color) | #7D7D7D | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #816BE0
#816BE0
oklch(60.5% 0.171 288.9)
- #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 #816BE0, closest first.
No curated palette has a color within ΔE 0.04 of #816BE0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.025
- Medium Purple #9370DB ΔE 0.034
- Purpley #8756E4 ΔE 0.047
- Cornflower #6A79F7 ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.062
- Deep Lilac #966EBD ΔE 0.065
Use #816BE0 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.