#AAB3FB
Closest named color: Pastel Blue (#A2BFFE). oklch(78.6% 0.103 278.3), rgb(170, 179, 251).
Aa
Black text reads best on this color (10.55:1).
About this color
#AAB3FB is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.103 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.031 away. Black text reads best on it, at 10.55:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.55:1 |
| White text | 1.99:1 |
Values
| HEX | #AAB3FB |
| RGB | rgb(170, 179, 251) |
| HSL | hsl(233, 91%, 83%) |
| OKLCH | oklch(78.6% 0.103 278.3) |
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 #AAB3FB | 1.99:1 | Fails | Lc -42.9 | Non-text elements, placeholder text |
| Black text on #AAB3FB | 10.55:1 | AAA | Lc 65.5 | Content text, not long reading |
| #AAB3FB text on white | 1.99:1 | Fails | Lc 38.5 | Non-text elements, placeholder text |
| #AAB3FB text on black | 10.55:1 | AAA | Lc -63.9 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FE
oklch(93.5% 0.03 279.6)
-
Step 200
200
#D0D6FF
oklch(88.5% 0.057 278.6)
-
Step 300
300 (this color)
#AAB3FB
oklch(78.6% 0.103 278.3)
-
Step 400
400
#8C94FF
oklch(70.7% 0.155 278.4)
-
Step 500
500
#7274FF
oklch(63% 0.202 278.3)
-
Step 600
600
#5D55F4
oklch(55.6% 0.229 278.1)
-
Step 700
700
#4E44D4
oklch(49.1% 0.212 278.3)
-
Step 800
800
#3F39AC
oklch(42.7% 0.177 278.1)
-
Step 900
900
#353388
oklch(37.7% 0.138 278.5)
-
Step 950
950
#1E1F4F
oklch(26.9% 0.086 278)
#AAB3FB 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) | #9DBBFE | 0.024 |
| Deuteranopia (no green cones) | #98B5F9 | 0.023 |
| Tritanopia (no blue cones) | #94C1CC | 0.093 |
| Achromatopsia (no color) | #B8B8B8 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAB3FB
#AAB3FB
oklch(78.6% 0.103 278.3)
- #CBBA6A
#CBBA6A
oklch(78.6% 0.103 97.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #AAB3FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.031
- Carolina Blue #8AB8FE ΔE 0.039
- Pale Violet #CEAEFA ΔE 0.050
- Light Periwinkle #C1C6FC ΔE 0.061
- Light Violet #D6B4FC ΔE 0.062
- Lilac #CEA2FD ΔE 0.064
- Pastel Purple #CAA0FF ΔE 0.064
- Baby Purple #CA9BF7 ΔE 0.070
Use #AAB3FB 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.