#817BFB
Closest named color: Periwinkle (#8E82FE). oklch(65.1% 0.185 282.1), rgb(129, 123, 251).
Aa
Black text reads best on this color (6.15:1).
About this color
#817BFB is a medium-light, vivid purple. In OKLCH its lightness is 65%, its chroma 0.185 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle (#8E82FE), ΔE 0.027 away. Black text reads best on it, at 6.15:1.
| Hue family | Purples |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Periwinkle (#8E82FE) |
| Black text | 6.15:1 |
| White text | 3.40:1 |
Values
| HEX | #817BFB |
| RGB | rgb(129, 123, 251) |
| HSL | hsl(243, 94%, 73%) |
| OKLCH | oklch(65.1% 0.185 282.1) |
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 #817BFB | 3.40:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #817BFB | 6.15:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #817BFB text on white | 3.40:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #817BFB text on black | 6.15:1 | AA | Lc -40.4 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D3D6FA
oklch(88.5% 0.05 281.6)
-
Step 300
300
#B7BAFA
oklch(80.9% 0.09 282.1)
-
Step 400
400
#9393F8
oklch(70.6% 0.146 282)
-
Step 500
500 (this color)
#817BFB
oklch(65.1% 0.185 282.1)
-
Step 600
600
#6759E3
oklch(55.6% 0.201 282.2)
-
Step 700
700
#5648C5
oklch(49.1% 0.187 282.1)
-
Step 800
800
#463C9F
oklch(42.6% 0.154 282.2)
-
Step 900
900
#3A357F
oklch(37.8% 0.121 282)
-
Step 950
950
#22204A
oklch(27.1% 0.076 282.2)
#817BFB 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) | #3B8FFF | 0.081 |
| Deuteranopia (no green cones) | #3187F8 | 0.083 |
| Tritanopia (no blue cones) | #5497AF | 0.159 |
| Achromatopsia (no color) | #8B8B8B | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817BFB
#817BFB
oklch(65.1% 0.185 282.1)
- #A09100
#A09100
oklch(65% 0.136 102.1)
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 #817BFB, closest first.
No curated palette has a color within ΔE 0.04 of #817BFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle #8E82FE ΔE 0.027
- Cornflower #6A79F7 ΔE 0.033
- Lavender Blue #8B88F8 ΔE 0.037
- Medium Slate Blue #7B68EE ΔE 0.048
- Soft Blue #6488EA ΔE 0.055
- Medium Purple #9370DB ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.077
Use #817BFB 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.