#817EB5
Closest named color: Lavender Gray (#7E7F9A). oklch(61.7% 0.082 286.2), rgb(129, 126, 181).
Aa
Black text reads best on this color (5.58:1).
About this color
#817EB5 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 62%, its chroma 0.082 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.043 away. Black text reads best on it, at 5.58:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.58:1 |
| White text | 3.76:1 |
Values
| HEX | #817EB5 |
| RGB | rgb(129, 126, 181) |
| HSL | hsl(243, 27%, 60%) |
| OKLCH | oklch(61.7% 0.082 286.2) |
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 #817EB5 | 3.76:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #817EB5 | 5.58:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #817EB5 text on white | 3.76:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #817EB5 text on black | 5.58:1 | AA | Lc -36.5 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E8
oklch(88.4% 0.023 285.9)
-
Step 300
300
#BEBDDA
oklch(80.8% 0.041 287)
-
Step 400
400
#9D9BC8
oklch(70.7% 0.065 286.6)
-
Step 500
500 (this color)
#817EB5
oklch(61.7% 0.082 286.2)
-
Step 600
600
#6F6BA5
oklch(55.6% 0.089 286.3)
-
Step 700
700
#5D598E
oklch(49.1% 0.084 286.3)
-
Step 800
800
#4C4973
oklch(42.7% 0.069 286.4)
-
Step 900
900
#3F3D5D
oklch(37.6% 0.054 286.3)
-
Step 950
950
#252436
oklch(27% 0.033 286.5)
#817EB5 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) | #6F85B7 | 0.029 |
| Deuteranopia (no green cones) | #6E82B4 | 0.028 |
| Tritanopia (no blue cones) | #758892 | 0.071 |
| Achromatopsia (no color) | #848484 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817EB5
#817EB5
oklch(61.7% 0.082 286.2)
- #8C894C
#8C894C
oklch(61.9% 0.082 106.1)
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 #817EB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.043
- Faded Blue #658CBB ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.052
- Deep Lilac #966EBD ΔE 0.054
- Faded Purple #916E99 ΔE 0.055
- Dusty Blue #5A86AD ΔE 0.056
- Purpley Grey #947E94 ΔE 0.057
- Dark Lilac #9C6DA5 ΔE 0.058
Use #817EB5 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.