#B9C9FA
Closest named color: Light Periwinkle (#C1C6FC). oklch(84% 0.071 270.7), rgb(185, 201, 250).
Aa
Black text reads best on this color (12.79:1).
About this color
#B9C9FA is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.071 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.013 away. Black text reads best on it, at 12.79:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.79:1 |
| White text | 1.64:1 |
Values
| HEX | #B9C9FA |
| RGB | rgb(185, 201, 250) |
| HSL | hsl(225, 87%, 85%) |
| OKLCH | oklch(84% 0.071 270.7) |
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 #B9C9FA | 1.64:1 | Fails | Lc -32.1 | Non-text elements, placeholder text |
| Black text on #B9C9FA | 12.79:1 | AAA | Lc 75.4 | Fine for body text |
| #B9C9FA text on white | 1.64:1 | Fails | Lc 28.4 | Dividers and decoration only |
| #B9C9FA text on black | 12.79:1 | AAA | Lc -74.4 | Content text, not long reading |
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 300.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F8
oklch(93.5% 0.021 271.2)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300 (this color)
#B9C9FA
oklch(84% 0.071 270.7)
-
Step 400
400
#869CE8
oklch(70.7% 0.114 270.9)
-
Step 500
500
#6982E1
oklch(63.1% 0.146 270.7)
-
Step 600
600
#5269CE
oklch(55.5% 0.157 270.8)
-
Step 700
700
#4357B3
oklch(49.1% 0.147 270.8)
-
Step 800
800
#374891
oklch(42.8% 0.122 270.6)
-
Step 900
900
#2F3D73
oklch(37.7% 0.094 270.4)
-
Step 950
950
#1C2444
oklch(27.1% 0.06 271.3)
#B9C9FA 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) | #BACDFC | 0.010 |
| Deuteranopia (no green cones) | #B5C7F9 | 0.008 |
| Tritanopia (no blue cones) | #A8D2D9 | 0.064 |
| Achromatopsia (no color) | #CACACA | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9C9FA
#B9C9FA
oklch(84% 0.071 270.7)
- #DCCA96
#DCCA96
oklch(84.1% 0.071 91.2)
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 #B9C9FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.013
- Baby Blue #A2CFFE ΔE 0.029
- Light Blue Grey #B7C9E2 ΔE 0.035
- Light Steel Blue #B0C4DE ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.051
- Light Lavender #DFC5FE ΔE 0.053
- Light Sky Blue #87CEFA ΔE 0.057
Use #B9C9FA 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.