#817DB0
Closest named color: Lavender Gray (#7E7F9A). oklch(61.3% 0.077 287.5), rgb(129, 125, 176).
Aa
Black text reads best on this color (5.49:1).
About this color
#817DB0 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 61%, its chroma 0.077 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.037 away. Black text reads best on it, at 5.49:1.
| Hue family | Purples |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.49:1 |
| White text | 3.82:1 |
Values
| HEX | #817DB0 |
| RGB | rgb(129, 125, 176) |
| HSL | hsl(245, 24%, 59%) |
| OKLCH | oklch(61.3% 0.077 287.5) |
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 #817DB0 | 3.82:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #817DB0 | 5.49:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #817DB0 text on white | 3.82:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #817DB0 text on black | 5.49:1 | AA | Lc -36.0 | 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
#E9E9F1
oklch(93.6% 0.011 286.2)
-
Step 200
200
#D8D7E7
oklch(88.5% 0.022 288.8)
-
Step 300
300
#BFBDD8
oklch(80.9% 0.038 288.9)
-
Step 400
400
#9E9BC5
oklch(70.7% 0.061 288)
-
Step 500
500 (this color)
#817DB0
oklch(61.3% 0.077 287.5)
-
Step 600
600
#706BA2
oklch(55.5% 0.085 287.5)
-
Step 700
700
#5E598A
oklch(49% 0.078 287.8)
-
Step 800
800
#4D4970
oklch(42.6% 0.064 288.1)
-
Step 900
900
#403D5B
oklch(37.6% 0.051 288.3)
-
Step 950
950
#252435
oklch(26.9% 0.031 286.8)
#817DB0 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) | #6F84B2 | 0.029 |
| Deuteranopia (no green cones) | #6F81AF | 0.027 |
| Tritanopia (no blue cones) | #76868F | 0.066 |
| Achromatopsia (no color) | #828282 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817DB0
#817DB0
oklch(61.3% 0.077 287.5)
- #898850
#898850
oklch(61.4% 0.077 107.6)
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 #817DB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.037
- Faded Purple #916E99 ΔE 0.049
- Silver Lake Blue #778DA9 ΔE 0.050
- Faded Blue #658CBB ΔE 0.050
- Purpley Grey #947E94 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.055
- Dark Lilac #9C6DA5 ΔE 0.055
- Light Slate Gray #778899 ΔE 0.056
Use #817DB0 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.