#8181E7
Closest named color: Lavender Blue (#8B88F8). oklch(64.9% 0.15 281.4), rgb(129, 129, 231).
Aa
Black text reads best on this color (6.22:1).
About this color
#8181E7 is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.150 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Blue (#8B88F8), ΔE 0.033 away. Black text reads best on it, at 6.22:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Lavender Blue (#8B88F8) |
| Black text | 6.22:1 |
| White text | 3.37:1 |
Values
| HEX | #8181E7 |
| RGB | rgb(129, 129, 231) |
| HSL | hsl(240, 68%, 71%) |
| OKLCH | oklch(64.9% 0.15 281.4) |
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 #8181E7 | 3.37:1 | AA large text | Lc -66.5 | Content text, not long reading |
| Black text on #8181E7 | 6.22:1 | AA | Lc 43.0 | Non-text elements, placeholder text |
| #8181E7 text on white | 3.37:1 | AA large text | Lc 61.0 | Content text, not long reading |
| #8181E7 text on black | 6.22:1 | AA | Lc -40.7 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F8
oklch(93.7% 0.02 279.9)
-
Step 200
200
#D4D7F4
oklch(88.6% 0.04 280.9)
-
Step 300
300
#B8BCF0
oklch(81% 0.073 281.2)
-
Step 400
400
#9497E8
oklch(70.6% 0.118 281.3)
-
Step 500
500 (this color)
#8181E7
oklch(64.9% 0.15 281.4)
-
Step 600
600
#6662CF
oklch(55.6% 0.163 281.3)
-
Step 700
700
#5551B3
oklch(49.2% 0.151 281.1)
-
Step 800
800
#464391
oklch(42.9% 0.125 281.5)
-
Step 900
900
#3A3973
oklch(37.7% 0.097 281.5)
-
Step 950
950
#222244
oklch(27.1% 0.062 281.4)
#8181E7 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) | #5990EB | 0.056 |
| Deuteranopia (no green cones) | #5388E5 | 0.056 |
| Tritanopia (no blue cones) | #6096A9 | 0.129 |
| Achromatopsia (no color) | #8C8C8C | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #8181E7
#8181E7
oklch(64.9% 0.15 281.4)
- #A19100
#A19100
oklch(65.1% 0.136 101.6)
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 #8181E7, closest first.
No curated palette has a color within ΔE 0.04 of #8181E7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Blue #8B88F8 ΔE 0.033
- Perrywinkle #8F8CE7 ΔE 0.036
- Soft Blue #6488EA ΔE 0.038
- Periwinkle #8E82FE ΔE 0.039
- Cornflower #6A79F7 ΔE 0.047
- Medium Purple #9370DB ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.064
Use #8181E7 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.