#A1B9FF
Closest named color: Pastel Blue (#A2BFFE). oklch(79.4% 0.103 269.4), rgb(161, 185, 255).
Aa
Black text reads best on this color (10.89:1).
About this color
#A1B9FF is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.103 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.017 away. Black text reads best on it, at 10.89:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.89:1 |
| White text | 1.92:1 |
Values
| HEX | #A1B9FF |
| RGB | rgb(161, 185, 255) |
| HSL | hsl(225, 100%, 82%) |
| OKLCH | oklch(79.4% 0.103 269.4) |
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 #A1B9FF | 1.92:1 | Fails | Lc -41.2 | Non-text elements, placeholder text |
| Black text on #A1B9FF | 10.89:1 | AAA | Lc 67.1 | Content text, not long reading |
| #A1B9FF text on white | 1.92:1 | Fails | Lc 36.8 | Non-text elements, placeholder text |
| #A1B9FF text on black | 10.89:1 | AAA | Lc -65.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFF
oklch(93.7% 0.03 269.1)
-
Step 200
200
#CAD8FF
oklch(88.4% 0.056 269.7)
-
Step 300
300 (this color)
#A1B9FF
oklch(79.4% 0.103 269.4)
-
Step 400
400
#7B9AFF
oklch(70.8% 0.152 269.4)
-
Step 500
500
#5B7CFF
oklch(63.1% 0.198 269.4)
-
Step 600
600
#425DF7
oklch(55.6% 0.23 269.5)
-
Step 700
700
#354BD7
oklch(49.1% 0.214 269.5)
-
Step 800
800
#2B3FAE
oklch(42.7% 0.177 269.3)
-
Step 900
900
#263789
oklch(37.6% 0.138 269.6)
-
Step 950
950
#162150
oklch(26.9% 0.087 269.7)
#A1B9FF 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) | #A2BFFF | 0.016 |
| Deuteranopia (no green cones) | #99B7FD | 0.012 |
| Tritanopia (no blue cones) | #84C7D1 | 0.093 |
| Achromatopsia (no color) | #BBBBBB | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1B9FF
#A1B9FF
oklch(79.4% 0.103 269.4)
- #D6B96B
#D6B96B
oklch(79.4% 0.103 89.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #A1B9FF
These curated palettes and gradients contain exactly #A1B9FF. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.017
- Carolina Blue #8AB8FE ΔE 0.028
- Sky #82CAFC ΔE 0.055
- Light Periwinkle #C1C6FC ΔE 0.057
- Lightblue #7BC8F6 ΔE 0.059
- Baby Blue #A2CFFE ΔE 0.059
- Light Sky Blue #87CEFA ΔE 0.062
- Pale Violet #CEAEFA ΔE 0.064
Use #A1B9FF 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.