#999AFF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.8% 0.145 281.7), rgb(153, 154, 255).
Aa
Black text reads best on this color (8.42:1).
About this color
#999AFF is a medium-light, vivid purple. In OKLCH its lightness is 73%, its chroma 0.145 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.015 away. Black text reads best on it, at 8.42:1.
| Hue family | Purples |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.42:1 |
| White text | 2.49:1 |
Values
| HEX | #999AFF |
| RGB | rgb(153, 154, 255) |
| HSL | hsl(239, 100%, 80%) |
| OKLCH | oklch(72.8% 0.145 281.7) |
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 #999AFF | 2.49:1 | Fails | Lc -53.9 | Large or bold text, headings |
| Black text on #999AFF | 8.42:1 | AAA | Lc 55.1 | Large or bold text, headings |
| #999AFF text on white | 2.49:1 | Fails | Lc 48.9 | Large or bold text, headings |
| #999AFF text on black | 8.42:1 | AAA | Lc -53.1 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D3D6FA
oklch(88.5% 0.05 281.6)
-
Step 300
300
#B6BAFA
oklch(80.9% 0.09 281.4)
-
Step 400
400 (this color)
#999AFF
oklch(72.8% 0.145 281.7)
-
Step 500
500
#7B75F4
oklch(63.1% 0.184 281.8)
-
Step 600
600
#665AE3
oklch(55.7% 0.2 281.6)
-
Step 700
700
#5548C5
oklch(49% 0.187 281.7)
-
Step 800
800
#453CA0
oklch(42.6% 0.156 281.6)
-
Step 900
900
#3A357F
oklch(37.8% 0.121 282)
-
Step 950
950
#21204A
oklch(27% 0.076 281.1)
#999AFF 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) | #77A8FF | 0.051 |
| Deuteranopia (no green cones) | #72A0FD | 0.049 |
| Tritanopia (no blue cones) | #7BAEC0 | 0.126 |
| Achromatopsia (no color) | #A4A4A4 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #999AFF
#999AFF
oklch(72.8% 0.145 281.7)
- #BAA91F
#BAA91F
oklch(72.7% 0.145 101.7)
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 #999AFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.015
- Perrywinkle #8F8CE7 ΔE 0.049
- Lavender Blue #8B88F8 ΔE 0.051
- Periwinkle #8E82FE ΔE 0.063
- Liliac #C48EFD ΔE 0.067
- Baby Purple #CA9BF7 ΔE 0.073
- Cornflower Blue #6495ED ΔE 0.073
- Pale Purple #B790D4 ΔE 0.074
Use #999AFF 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.