#817FAC
Closest named color: Lavender Gray (#7E7F9A). oklch(61.5% 0.068 286.3), rgb(129, 127, 172).
Aa
Black text reads best on this color (5.56:1).
About this color
#817FAC is a medium-dark, muted purple. In OKLCH its lightness is 62%, its chroma 0.068 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.029 away. Black text reads best on it, at 5.56:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.56:1 |
| White text | 3.77:1 |
Values
| HEX | #817FAC |
| RGB | rgb(129, 127, 172) |
| HSL | hsl(243, 21%, 59%) |
| OKLCH | oklch(61.5% 0.068 286.3) |
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 #817FAC | 3.77:1 | AA large text | Lc -70.8 | Content text, not long reading |
| Black text on #817FAC | 5.56:1 | AA | Lc 38.8 | Non-text elements, placeholder text |
| #817FAC text on white | 3.77:1 | AA large text | Lc 65.3 | Content text, not long reading |
| #817FAC text on black | 5.56:1 | AA | Lc -36.4 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D8E5
oklch(88.6% 0.018 286)
-
Step 300
300
#BEBED6
oklch(80.9% 0.034 285.6)
-
Step 400
400
#9D9CC1
oklch(70.6% 0.054 286.2)
-
Step 500
500 (this color)
#817FAC
oklch(61.5% 0.068 286.3)
-
Step 600
600
#706D9D
oklch(55.7% 0.074 286.6)
-
Step 700
700
#5D5B86
oklch(49.1% 0.068 285.7)
-
Step 800
800
#4C4A6D
oklch(42.6% 0.058 286.3)
-
Step 900
900
#3F3E58
oklch(37.6% 0.044 285.8)
-
Step 950
950
#252434
oklch(26.9% 0.03 287.1)
#817FAC 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) | #7385AE | 0.024 |
| Deuteranopia (no green cones) | #7282AB | 0.022 |
| Tritanopia (no blue cones) | #77878F | 0.059 |
| Achromatopsia (no color) | #838383 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #817FAC
#817FAC
oklch(61.5% 0.068 286.3)
- #8A8857
#8A8857
oklch(61.6% 0.068 106.2)
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 #817FAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.029
- Silver Lake Blue #778DA9 ΔE 0.042
- Purpley Grey #947E94 ΔE 0.045
- Light Slate Gray #778899 ΔE 0.047
- Faded Blue #658CBB ΔE 0.048
- Blue Grey #758DA3 ΔE 0.048
- Steel #738595 ΔE 0.049
- Faded Purple #916E99 ΔE 0.050
Use #817FAC 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.