#817FEF
Closest named color: Lavender Blue (#8B88F8). oklch(65% 0.163 281.7), rgb(129, 127, 239).
Aa
Black text reads best on this color (6.21:1).
About this color
#817FEF is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.163 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Blue (#8B88F8), ΔE 0.030 away. Black text reads best on it, at 6.21:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Lavender Blue (#8B88F8) |
| Black text | 6.21:1 |
| White text | 3.37:1 |
Values
| HEX | #817FEF |
| RGB | rgb(129, 127, 239) |
| HSL | hsl(241, 78%, 72%) |
| OKLCH | oklch(65% 0.163 281.7) |
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 #817FEF | 3.37:1 | AA large text | Lc -66.5 | Content text, not long reading |
| Black text on #817FEF | 6.21:1 | AA | Lc 43.0 | Non-text elements, placeholder text |
| #817FEF text on white | 3.37:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #817FEF text on black | 6.21:1 | AA | Lc -40.6 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F7
oklch(88.5% 0.045 282.7)
-
Step 300
300
#B7BBF4
oklch(80.9% 0.08 281.3)
-
Step 400
400
#9496EE
oklch(70.8% 0.128 281.6)
-
Step 500
500 (this color)
#817FEF
oklch(65% 0.163 281.7)
-
Step 600
600
#665FD6
oklch(55.5% 0.177 281.6)
-
Step 700
700
#554EBA
oklch(49.2% 0.165 281.4)
-
Step 800
800
#464096
oklch(42.7% 0.136 282.1)
-
Step 900
900
#3A3778
oklch(37.6% 0.108 282)
-
Step 950
950
#222146
oklch(27% 0.067 282.1)
#817FEF 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) | #5090F3 | 0.065 |
| Deuteranopia (no green cones) | #4988EC | 0.065 |
| Tritanopia (no blue cones) | #5B97AC | 0.141 |
| Achromatopsia (no color) | #8C8C8C | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817FEF
#817FEF
oklch(65% 0.163 281.7)
- #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 #817FEF, closest first.
No curated palette has a color within ΔE 0.04 of #817FEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Blue #8B88F8 ΔE 0.030
- Periwinkle #8E82FE ΔE 0.030
- Cornflower #6A79F7 ΔE 0.039
- Soft Blue #6488EA ΔE 0.042
- Perrywinkle #8F8CE7 ΔE 0.044
- Medium Purple #9370DB ΔE 0.048
- Medium Slate Blue #7B68EE ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.063
Use #817FEF 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.