#817FDB
Closest named color: Perrywinkle (#8F8CE7). oklch(63.9% 0.136 282.8), rgb(129, 127, 219).
Aa
Black text reads best on this color (5.99:1).
About this color
#817FDB is a medium-light, moderately saturated purple. In OKLCH its lightness is 64%, its chroma 0.136 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.042 away. Black text reads best on it, at 5.99:1.
| Hue family | Purples |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #817FDB |
| RGB | rgb(129, 127, 219) |
| HSL | hsl(241, 56%, 68%) |
| OKLCH | oklch(63.9% 0.136 282.8) |
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 #817FDB | 3.50:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #817FDB | 5.99:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #817FDB text on white | 3.50:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #817FDB text on black | 5.99:1 | AA | Lc -39.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F7
oklch(93.7% 0.019 282.8)
-
Step 200
200
#D5D7F2
oklch(88.6% 0.037 282.2)
-
Step 300
300
#BABCEB
oklch(81% 0.066 282.9)
-
Step 400
400
#9798E1
oklch(70.7% 0.106 282.7)
-
Step 500
500 (this color)
#817FDB
oklch(63.9% 0.136 282.8)
-
Step 600
600
#6964C6
oklch(55.6% 0.148 282.8)
-
Step 700
700
#5852AB
oklch(49% 0.138 283.1)
-
Step 800
800
#48448A
oklch(42.7% 0.113 283.1)
-
Step 900
900
#3C3A6F
oklch(37.8% 0.089 283)
-
Step 950
950
#232241
oklch(27% 0.057 283.4)
#817FDB 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) | #5E8CDE | 0.051 |
| Deuteranopia (no green cones) | #5A86D9 | 0.050 |
| Tritanopia (no blue cones) | #6691A2 | 0.117 |
| Achromatopsia (no color) | #898989 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817FDB
#817FDB
oklch(63.9% 0.136 282.8)
- #9B8E00
#9B8E00
oklch(63.8% 0.134 103)
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 #817FDB, closest first.
No curated palette has a color within ΔE 0.04 of #817FDB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.042
- Medium Purple #9370DB ΔE 0.043
- Soft Blue #6488EA ΔE 0.044
- Lavender Blue #8B88F8 ΔE 0.049
- Periwinkle #8E82FE ΔE 0.056
- Cornflower #6A79F7 ΔE 0.057
- Deep Lilac #966EBD ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.063
Use #817FDB 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.