#817FCF
Closest named color: Medium Purple (#9370DB). oklch(63.2% 0.119 283.6), rgb(129, 127, 207).
Aa
Black text reads best on this color (5.87:1).
About this color
#817FCF is a medium-light, moderately saturated purple. In OKLCH its lightness is 63%, its chroma 0.119 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Purple (#9370DB), ΔE 0.050 away. Black text reads best on it, at 5.87:1.
| Hue family | Purples |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Medium Purple (#9370DB) |
| Black text | 5.87:1 |
| White text | 3.57:1 |
Values
| HEX | #817FCF |
| RGB | rgb(129, 127, 207) |
| HSL | hsl(242, 45%, 65%) |
| OKLCH | oklch(63.2% 0.119 283.6) |
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 #817FCF | 3.57:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #817FCF | 5.87:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #817FCF text on white | 3.57:1 | AA large text | Lc 63.3 | Content text, not long reading |
| #817FCF text on black | 5.87:1 | AA | Lc -38.4 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BBBCE6
oklch(80.8% 0.059 283.9)
-
Step 400
400
#9999D9
oklch(70.7% 0.093 283.8)
-
Step 500
500 (this color)
#817FCF
oklch(63.2% 0.119 283.6)
-
Step 600
600
#6B67BC
oklch(55.7% 0.129 283.5)
-
Step 700
700
#5955A2
oklch(49.1% 0.12 283.4)
-
Step 800
800
#494683
oklch(42.8% 0.099 283.6)
-
Step 900
900
#3D3B69
oklch(37.7% 0.077 284)
-
Step 950
950
#23233E
oklch(27% 0.05 282.6)
#817FCF 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) | #658AD2 | 0.043 |
| Deuteranopia (no green cones) | #6285CD | 0.042 |
| Tritanopia (no blue cones) | #6B8E9D | 0.102 |
| Achromatopsia (no color) | #878787 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817FCF
#817FCF
oklch(63.2% 0.119 283.6)
- #978D27
#978D27
oklch(63.4% 0.119 103.6)
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 #817FCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Purple #9370DB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.051
- Deep Lilac #966EBD ΔE 0.053
- Soft Blue #6488EA ΔE 0.053
- Wisteria #A87DC2 ΔE 0.062
- Faded Blue #658CBB ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.064
- Cornflower Blue #6495ED ΔE 0.069
Use #817FCF 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.