#AAC3FA
Closest named color: Pastel Blue (#A2BFFE). oklch(81.8% 0.083 265.6), rgb(170, 195, 250).
Aa
Black text reads best on this color (11.89:1).
About this color
#AAC3FA is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.083 and its hue 266°. 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 11.89:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.89:1 |
| White text | 1.76:1 |
Values
| HEX | #AAC3FA |
| RGB | rgb(170, 195, 250) |
| HSL | hsl(221, 89%, 82%) |
| OKLCH | oklch(81.8% 0.083 265.6) |
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 #AAC3FA | 1.76:1 | Fails | Lc -36.3 | Non-text elements, placeholder text |
| Black text on #AAC3FA | 11.89:1 | AAA | Lc 71.5 | Content text, not long reading |
| #AAC3FA text on white | 1.76:1 | Fails | Lc 32.4 | Non-text elements, placeholder text |
| #AAC3FA text on black | 11.89:1 | AAA | Lc -70.3 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300 (this color)
#AAC3FA
oklch(81.8% 0.083 265.6)
-
Step 400
400
#799DF3
oklch(70.6% 0.133 265.9)
-
Step 500
500
#5882EF
oklch(63% 0.17 265.9)
-
Step 600
600
#3F69DD
oklch(55.6% 0.184 265.7)
-
Step 700
700
#3157C0
oklch(49.2% 0.171 265.4)
-
Step 800
800
#29489B
oklch(42.8% 0.141 265.4)
-
Step 900
900
#253D7B
oklch(37.7% 0.11 265.5)
-
Step 950
950
#162448
oklch(26.9% 0.07 265.9)
#AAC3FA 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) | #B1C7FD | 0.015 |
| Deuteranopia (no green cones) | #AAC0F9 | 0.008 |
| Tritanopia (no blue cones) | #93CED6 | 0.073 |
| Achromatopsia (no color) | #C3C3C3 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC3FA
#AAC3FA
oklch(81.8% 0.083 265.6)
- #DCC085
#DCC085
oklch(81.8% 0.083 85.3)
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 #AAC3FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.017
- Baby Blue #A2CFFE ΔE 0.031
- Light Periwinkle #C1C6FC ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.042
- Light Blue Grey #B7C9E2 ΔE 0.045
- Sky #82CAFC ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.047
Use #AAC3FA 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.