#909EFF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.9% 0.141 276.1), rgb(144, 158, 255).
Aa
Black text reads best on this color (8.52:1).
About this color
#909EFF is a medium-light, vivid blue. In OKLCH its lightness is 73%, its chroma 0.141 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.013 away. Black text reads best on it, at 8.52:1.
| Hue family | Blues |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.52:1 |
| White text | 2.46:1 |
Values
| HEX | #909EFF |
| RGB | rgb(144, 158, 255) |
| HSL | hsl(232, 100%, 78%) |
| OKLCH | oklch(72.9% 0.141 276.1) |
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 #909EFF | 2.46:1 | Fails | Lc -53.4 | Large or bold text, headings |
| Black text on #909EFF | 8.52:1 | AAA | Lc 55.7 | Large or bold text, headings |
| #909EFF text on white | 2.46:1 | Fails | Lc 48.3 | Large or bold text, headings |
| #909EFF text on black | 8.52:1 | AAA | Lc -53.6 | 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
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCFA
oklch(80.9% 0.089 276.4)
-
Step 400
400 (this color)
#909EFF
oklch(72.9% 0.141 276.1)
-
Step 500
500
#6F7AF4
oklch(63.2% 0.18 276.1)
-
Step 600
600
#595FE3
oklch(55.6% 0.197 276)
-
Step 700
700
#4A4DC5
oklch(49% 0.183 276.2)
-
Step 800
800
#3C409F
oklch(42.6% 0.151 276.1)
-
Step 900
900
#33387E
oklch(37.7% 0.117 276.2)
-
Step 950
950
#1D214A
oklch(26.9% 0.075 275.9)
#909EFF 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) | #7BAAFF | 0.037 |
| Deuteranopia (no green cones) | #72A1FD | 0.036 |
| Tritanopia (no blue cones) | #6AB2C2 | 0.126 |
| Achromatopsia (no color) | #A5A5A5 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909EFF
#909EFF
oklch(72.9% 0.141 276.1)
- #C2A623
#C2A623
oklch(72.9% 0.141 95.9)
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 #909EFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.013
- Perrywinkle #8F8CE7 ΔE 0.052
- Lavender Blue #8B88F8 ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.065
- Carolina Blue #8AB8FE ΔE 0.068
- Periwinkle #8E82FE ΔE 0.070
- Liliac #C48EFD ΔE 0.081
- Pale Purple #B790D4 ΔE 0.081
Use #909EFF 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.