#AC9EFB
Closest named color: Periwinkle Blue (#8F99FB). oklch(74.8% 0.132 289.7), rgb(172, 158, 251).
Aa
Black text reads best on this color (9.03:1).
About this color
#AC9EFB is a medium-light, moderately saturated purple. In OKLCH its lightness is 75%, its chroma 0.132 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.044 away. Black text reads best on it, at 9.03:1.
| Hue family | Purples |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 9.03:1 |
| White text | 2.32:1 |
Values
| HEX | #AC9EFB |
| RGB | rgb(172, 158, 251) |
| HSL | hsl(249, 92%, 80%) |
| OKLCH | oklch(74.8% 0.132 289.7) |
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 #AC9EFB | 2.32:1 | Fails | Lc -50.6 | Large or bold text, headings |
| Black text on #AC9EFB | 9.03:1 | AAA | Lc 58.2 | Large or bold text, headings |
| #AC9EFB text on white | 2.32:1 | Fails | Lc 45.7 | Large or bold text, headings |
| #AC9EFB text on black | 9.03:1 | AAA | Lc -56.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#BFB8F3
oklch(80.9% 0.083 289.8)
-
Step 400
400 (this color)
#AC9EFB
oklch(74.8% 0.132 289.7)
-
Step 500
500
#8A73E7
oklch(63.1% 0.169 289.8)
-
Step 600
600
#7558D5
oklch(55.5% 0.184 289.8)
-
Step 700
700
#6347B9
oklch(49.1% 0.172 289.9)
-
Step 800
800
#503B96
oklch(42.6% 0.143 289.6)
-
Step 900
900
#423477
oklch(37.7% 0.11 289.7)
-
Step 950
950
#261F46
oklch(27% 0.07 289.1)
#AC9EFB 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) | #82ACFF | 0.060 |
| Deuteranopia (no green cones) | #83A8F9 | 0.057 |
| Tritanopia (no blue cones) | #99AFC1 | 0.111 |
| Achromatopsia (no color) | #AAAAAA | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC9EFB
#AC9EFB
oklch(74.8% 0.132 289.7)
- #B3B445
#B3B445
oklch(74.8% 0.133 109.7)
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 #AC9EFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.044
- Baby Purple #CA9BF7 ΔE 0.045
- Pastel Purple #CAA0FF ΔE 0.046
- Liliac #C48EFD ΔE 0.051
- Lilac #CEA2FD ΔE 0.053
- Pale Purple #B790D4 ΔE 0.060
- Pale Violet #CEAEFA ΔE 0.068
- Perrywinkle #8F8CE7 ΔE 0.068
Use #AC9EFB 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.