#909EEE
Closest named color: Periwinkle Blue (#8F99FB). oklch(72% 0.118 275.5), rgb(144, 158, 238).
Aa
Black text reads best on this color (8.31:1).
About this color
#909EEE is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.118 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.026 away. Black text reads best on it, at 8.31:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.31:1 |
| White text | 2.52:1 |
Values
| HEX | #909EEE |
| RGB | rgb(144, 158, 238) |
| HSL | hsl(231, 73%, 75%) |
| OKLCH | oklch(72% 0.118 275.5) |
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 #909EEE | 2.52:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #909EEE | 8.31:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #909EEE text on white | 2.52:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #909EEE text on black | 8.31:1 | AAA | Lc -52.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D1D8F5
oklch(88.6% 0.041 274.8)
-
Step 300
300
#B3BDF1
oklch(80.9% 0.074 276.1)
-
Step 400
400 (this color)
#909EEE
oklch(72% 0.118 275.5)
-
Step 500
500
#717FE3
oklch(63.2% 0.15 275.3)
-
Step 600
600
#5B66D1
oklch(55.7% 0.163 275.4)
-
Step 700
700
#4B54B5
oklch(49.2% 0.152 275.3)
-
Step 800
800
#3D4592
oklch(42.6% 0.125 275.3)
-
Step 900
900
#343B75
oklch(37.8% 0.098 275.5)
-
Step 950
950
#1E2344
oklch(27% 0.061 275)
#909EEE 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) | #83A7F1 | 0.026 |
| Deuteranopia (no green cones) | #7C9FEC | 0.025 |
| Tritanopia (no blue cones) | #73AEBB | 0.105 |
| Achromatopsia (no color) | #A3A3A3 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #909EEE
#909EEE
oklch(72% 0.118 275.5)
- #BBA445
#BBA445
oklch(72% 0.117 95.7)
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 #909EEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.026
- Perrywinkle #8F8CE7 ΔE 0.046
- Cornflower Blue #6495ED ΔE 0.061
- Lavender Blue #8B88F8 ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.066
- Pale Purple #B790D4 ΔE 0.068
- Periwinkle #8E82FE ΔE 0.079
- Chefchaouen Blue #4895EF ΔE 0.084
Use #909EEE 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.