#AAC5FA
Closest named color: Pastel Blue (#A2BFFE). oklch(82.2% 0.081 263.6), rgb(170, 197, 250).
Aa
Black text reads best on this color (12.07:1).
About this color
#AAC5FA is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.081 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.022 away. Black text reads best on it, at 12.07:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.07:1 |
| White text | 1.73:1 |
Values
| HEX | #AAC5FA |
| RGB | rgb(170, 197, 250) |
| HSL | hsl(220, 89%, 82%) |
| OKLCH | oklch(82.2% 0.081 263.6) |
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 #AAC5FA | 1.73:1 | Fails | Lc -35.5 | Non-text elements, placeholder text |
| Black text on #AAC5FA | 12.07:1 | AAA | Lc 72.3 | Content text, not long reading |
| #AAC5FA text on white | 1.73:1 | Fails | Lc 31.6 | Non-text elements, placeholder text |
| #AAC5FA text on black | 12.07:1 | AAA | Lc -71.2 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF8
oklch(88.6% 0.045 263.1)
-
Step 300
300 (this color)
#AAC5FA
oklch(82.2% 0.081 263.6)
-
Step 400
400
#769FF1
oklch(70.7% 0.129 263.3)
-
Step 500
500
#5484EC
oklch(63.1% 0.165 263.7)
-
Step 600
600
#3A6BDA
oklch(55.6% 0.179 263.7)
-
Step 700
700
#2C59BE
oklch(49.2% 0.167 263.4)
-
Step 800
800
#254999
oklch(42.7% 0.138 263.5)
-
Step 900
900
#233E7A
oklch(37.7% 0.107 263.8)
-
Step 950
950
#152547
oklch(27.1% 0.067 263.6)
#AAC5FA 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) | #B3C8FC | 0.015 |
| Deuteranopia (no green cones) | #ACC1F9 | 0.010 |
| Tritanopia (no blue cones) | #93D0D7 | 0.072 |
| Achromatopsia (no color) | #C4C4C4 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC5FA
#AAC5FA
oklch(82.2% 0.081 263.6)
- #DEC188
#DEC188
oklch(82.3% 0.081 83.8)
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 #AAC5FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.022
- Baby Blue #A2CFFE ΔE 0.026
- Light Periwinkle #C1C6FC ΔE 0.030
- Light Steel Blue #B0C4DE ΔE 0.040
- Light Blue Grey #B7C9E2 ΔE 0.042
- Light Sky Blue #87CEFA ΔE 0.043
- Sky #82CAFC ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.046
Use #AAC5FA 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.