#816CEE
Closest named color: Medium Slate Blue (#7B68EE). oklch(61.6% 0.188 286.9), rgb(129, 108, 238).
Aa
Black text reads best on this color (5.31:1).
About this color
#816CEE is a medium-dark, vivid purple. In OKLCH its lightness is 62%, its chroma 0.188 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Slate Blue (#7B68EE), ΔE 0.014 away. Black text reads best on it, at 5.31:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Medium Slate Blue (#7B68EE) |
| Black text | 5.31:1 |
| White text | 3.95:1 |
Values
| HEX | #816CEE |
| RGB | rgb(129, 108, 238) |
| HSL | hsl(250, 79%, 68%) |
| OKLCH | oklch(61.6% 0.188 286.9) |
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 #816CEE | 3.95:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #816CEE | 5.31:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #816CEE text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #816CEE text on black | 5.31:1 | AA | Lc -35.1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E8FB
oklch(93.7% 0.026 285.9)
-
Step 200
200
#D6D5FA
oklch(88.6% 0.051 286.6)
-
Step 300
300
#BCB8FA
oklch(80.9% 0.093 286.9)
-
Step 400
400
#9B90F7
oklch(70.6% 0.148 286.9)
-
Step 500
500 (this color)
#816CEE
oklch(61.6% 0.188 286.9)
-
Step 600
600
#7155E2
oklch(55.7% 0.204 286.9)
-
Step 700
700
#5F44C4
oklch(49.1% 0.189 286.9)
-
Step 800
800
#4D399F
oklch(42.7% 0.158 286.7)
-
Step 900
900
#40327E
oklch(37.7% 0.123 287.4)
-
Step 950
950
#251E4A
oklch(27% 0.079 287.2)
#816CEE 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) | #2283F2 | 0.102 |
| Deuteranopia (no green cones) | #207CEB | 0.101 |
| Tritanopia (no blue cones) | #5E89A3 | 0.157 |
| Achromatopsia (no color) | #808080 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #816CEE
#816CEE
oklch(61.6% 0.188 286.9)
- #8F8900
#8F8900
oklch(61.5% 0.132 106.6)
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 #816CEE, closest first.
No curated palette has a color within ΔE 0.04 of #816CEE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Slate Blue #7B68EE ΔE 0.014
- Cornflower #6A79F7 ΔE 0.042
- Medium Purple #9370DB ΔE 0.043
- Purpley #8756E4 ΔE 0.049
- Periwinkle #8E82FE ΔE 0.060
- Lighter Purple #A55AF4 ΔE 0.067
- Dark Periwinkle #665FD1 ΔE 0.068
- Light Indigo #6D5ACF ΔE 0.070
Use #816CEE 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.