#9399FB
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.9% 0.142 279.5), rgb(147, 153, 251).
Aa
Black text reads best on this color (8.19:1).
About this color
#9399FB is a medium-light, vivid blue. In OKLCH its lightness is 72%, its chroma 0.142 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.005 away. Black text reads best on it, at 8.19:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #9399FB |
| RGB | rgb(147, 153, 251) |
| HSL | hsl(237, 93%, 78%) |
| OKLCH | oklch(71.9% 0.142 279.5) |
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 #9399FB | 2.56:1 | Fails | Lc -55.2 | Large or bold text, headings |
| Black text on #9399FB | 8.19:1 | AAA | Lc 53.9 | Large or bold text, headings |
| #9399FB text on white | 2.56:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #9399FB text on black | 8.19:1 | AAA | Lc -51.9 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B4BBF9
oklch(80.9% 0.088 279.2)
-
Step 400
400 (this color)
#9399FB
oklch(71.9% 0.142 279.5)
-
Step 500
500
#7677F3
oklch(63% 0.181 279.5)
-
Step 600
600
#615CE2
oklch(55.5% 0.197 279.5)
-
Step 700
700
#514BC4
oklch(49.1% 0.183 279.5)
-
Step 800
800
#423E9F
oklch(42.7% 0.152 279.6)
-
Step 900
900
#37367E
oklch(37.6% 0.119 279.7)
-
Step 950
950
#20204A
oklch(26.9% 0.076 280)
#9399FB 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) | #76A6FF | 0.044 |
| Deuteranopia (no green cones) | #709EF9 | 0.043 |
| Tritanopia (no blue cones) | #72ADBE | 0.125 |
| Achromatopsia (no color) | #A2A2A2 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9399FB
#9399FB
oklch(71.9% 0.142 279.5)
- #BAA51F
#BAA51F
oklch(71.9% 0.142 99.5)
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 #9399FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.005
- Perrywinkle #8F8CE7 ΔE 0.041
- Lavender Blue #8B88F8 ΔE 0.045
- Periwinkle #8E82FE ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.063
- Pale Purple #B790D4 ΔE 0.074
- Liliac #C48EFD ΔE 0.075
- Carolina Blue #8AB8FE ΔE 0.079
Use #9399FB 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.