#AAB4FB
Closest named color: Pastel Blue (#A2BFFE). oklch(78.8% 0.102 277.6), rgb(170, 180, 251).
Aa
Black text reads best on this color (10.63:1).
About this color
#AAB4FB is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.102 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.028 away. Black text reads best on it, at 10.63:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.63:1 |
| White text | 1.97:1 |
Values
| HEX | #AAB4FB |
| RGB | rgb(170, 180, 251) |
| HSL | hsl(233, 91%, 83%) |
| OKLCH | oklch(78.8% 0.102 277.6) |
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 #AAB4FB | 1.97:1 | Fails | Lc -42.5 | Non-text elements, placeholder text |
| Black text on #AAB4FB | 10.63:1 | AAA | Lc 65.8 | Content text, not long reading |
| #AAB4FB text on white | 1.97:1 | Fails | Lc 38.1 | Non-text elements, placeholder text |
| #AAB4FB text on black | 10.63:1 | AAA | Lc -64.3 | 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
#E5E9FE
oklch(93.7% 0.029 277.2)
-
Step 200
200
#CFD6FF
oklch(88.4% 0.057 277.5)
-
Step 300
300 (this color)
#AAB4FB
oklch(78.8% 0.102 277.6)
-
Step 400
400
#8B95FF
oklch(70.8% 0.154 277.6)
-
Step 500
500
#7175FF
oklch(63.1% 0.201 277.7)
-
Step 600
600
#5C56F2
oklch(55.5% 0.226 277.8)
-
Step 700
700
#4C45D3
oklch(49.1% 0.21 277.5)
-
Step 800
800
#3E3AAB
oklch(42.7% 0.175 277.6)
-
Step 900
900
#343487
oklch(37.7% 0.135 277.7)
-
Step 950
950
#1E1F4F
oklch(26.9% 0.086 278)
#AAB4FB 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) | #9EBCFE | 0.023 |
| Deuteranopia (no green cones) | #99B6F9 | 0.022 |
| Tritanopia (no blue cones) | #94C1CD | 0.090 |
| Achromatopsia (no color) | #B8B8B8 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAB4FB
#AAB4FB
oklch(78.8% 0.102 277.6)
- #CCBB6C
#CCBB6C
oklch(78.9% 0.102 97.5)
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 #AAB4FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.028
- Carolina Blue #8AB8FE ΔE 0.039
- Pale Violet #CEAEFA ΔE 0.051
- Light Periwinkle #C1C6FC ΔE 0.059
- Light Violet #D6B4FC ΔE 0.062
- Lilac #CEA2FD ΔE 0.065
- Pastel Purple #CAA0FF ΔE 0.065
- Sky #82CAFC ΔE 0.069
Use #AAB4FB 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.