#AC99FD
Closest named color: Periwinkle Blue (#8F99FB). oklch(74% 0.142 291.2), rgb(172, 153, 253).
Aa
Black text reads best on this color (8.72:1).
About this color
#AC99FD is a medium-light, vivid purple. In OKLCH its lightness is 74%, its chroma 0.142 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.041 away. Black text reads best on it, at 8.72:1.
| Hue family | Purples |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.142) |
| Temperature | in between |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.72:1 |
| White text | 2.40:1 |
Values
| HEX | #AC99FD |
| RGB | rgb(172, 153, 253) |
| HSL | hsl(251, 96%, 80%) |
| OKLCH | oklch(74% 0.142 291.2) |
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 #AC99FD | 2.40:1 | Fails | Lc -52.3 | Large or bold text, headings |
| Black text on #AC99FD | 8.72:1 | AAA | Lc 56.7 | Large or bold text, headings |
| #AC99FD text on white | 2.40:1 | Fails | Lc 47.3 | Large or bold text, headings |
| #AC99FD text on black | 8.72:1 | AAA | Lc -54.7 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C0B7F6
oklch(80.9% 0.088 290.8)
-
Step 400
400 (this color)
#AC99FD
oklch(74% 0.142 291.2)
-
Step 500
500
#8D6FED
oklch(63.1% 0.182 291.2)
-
Step 600
600
#7953DB
oklch(55.6% 0.198 291.5)
-
Step 700
700
#6643BE
oklch(49.2% 0.183 291.3)
-
Step 800
800
#53389A
oklch(42.8% 0.152 291.3)
-
Step 900
900
#44327A
oklch(37.7% 0.118 291.2)
-
Step 950
950
#281E48
oklch(27.1% 0.075 291.5)
#AC99FD 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) | #7BA9FF | 0.070 |
| Deuteranopia (no green cones) | #7CA5FB | 0.066 |
| Tritanopia (no blue cones) | #99ABBF | 0.118 |
| Achromatopsia (no color) | #A7A7A7 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC99FD
#AC99FD
oklch(74% 0.142 291.2)
- #AFB337
#AFB337
oklch(74.1% 0.143 111.2)
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 #AC99FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.041
- Liliac #C48EFD ΔE 0.043
- Baby Purple #CA9BF7 ΔE 0.047
- Pastel Purple #CAA0FF ΔE 0.050
- Lilac #CEA2FD ΔE 0.058
- Pale Purple #B790D4 ΔE 0.060
- Perrywinkle #8F8CE7 ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.067
Use #AC99FD 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.