#909BFA
Closest named color: Periwinkle Blue (#8F99FB). oklch(72.1% 0.138 277.3), rgb(144, 155, 250).
Aa
Black text reads best on this color (8.25:1).
About this color
#909BFA is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.138 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.006 away. Black text reads best on it, at 8.25:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.25:1 |
| White text | 2.54:1 |
Values
| HEX | #909BFA |
| RGB | rgb(144, 155, 250) |
| HSL | hsl(234, 91%, 77%) |
| OKLCH | oklch(72.1% 0.138 277.3) |
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 #909BFA | 2.54:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #909BFA | 8.25:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #909BFA text on white | 2.54:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #909BFA text on black | 8.25:1 | AAA | Lc -52.2 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B2BCF9
oklch(80.9% 0.087 277.1)
-
Step 400
400 (this color)
#909BFA
oklch(72.1% 0.138 277.3)
-
Step 500
500
#727AF1
oklch(63.2% 0.175 277.2)
-
Step 600
600
#5D5FE0
oklch(55.6% 0.192 277.5)
-
Step 700
700
#4D4DC3
oklch(49.1% 0.18 277.5)
-
Step 800
800
#3F409D
oklch(42.7% 0.148 277.7)
-
Step 900
900
#34387D
oklch(37.7% 0.115 276.9)
-
Step 950
950
#1E2149
oklch(26.9% 0.073 277.1)
#909BFA 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) | #79A7FE | 0.038 |
| Deuteranopia (no green cones) | #719EF8 | 0.038 |
| Tritanopia (no blue cones) | #6DAEBF | 0.121 |
| Achromatopsia (no color) | #A2A2A2 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909BFA
#909BFA
oklch(72.1% 0.138 277.3)
- #BDA426
#BDA426
oklch(72% 0.138 97.1)
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 #909BFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.006
- Perrywinkle #8F8CE7 ΔE 0.043
- Lavender Blue #8B88F8 ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.060
- Periwinkle #8E82FE ΔE 0.064
- Carolina Blue #8AB8FE ΔE 0.074
- Pale Purple #B790D4 ΔE 0.076
- Liliac #C48EFD ΔE 0.080
Use #909BFA 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.