#AEC9FF
Closest named color: Baby Blue (#A2CFFE). oklch(83.5% 0.082 264), rgb(174, 201, 255).
Aa
Black text reads best on this color (12.59:1).
About this color
#AEC9FF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.082 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.020 away. Black text reads best on it, at 12.59:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.59:1 |
| White text | 1.66:1 |
Values
| HEX | #AEC9FF |
| RGB | rgb(174, 201, 255) |
| HSL | hsl(220, 100%, 84%) |
| OKLCH | oklch(83.5% 0.082 264) |
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 #AEC9FF | 1.66:1 | Fails | Lc -33.0 | Non-text elements, placeholder text |
| Black text on #AEC9FF | 12.59:1 | AAA | Lc 74.5 | Content text, not long reading |
| #AEC9FF text on white | 1.66:1 | Fails | Lc 29.3 | Dividers and decoration only |
| #AEC9FF text on black | 12.59:1 | AAA | Lc -73.6 | 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
#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)
#AEC9FF
oklch(83.5% 0.082 264)
-
Step 400
400
#779EF2
oklch(70.6% 0.131 264.4)
-
Step 500
500
#5484ED
oklch(63.1% 0.166 263.8)
-
Step 600
600
#3A6ADC
oklch(55.5% 0.182 264.1)
-
Step 700
700
#2D58BF
oklch(49.1% 0.169 264.1)
-
Step 800
800
#26499A
oklch(42.8% 0.139 263.9)
-
Step 900
900
#233E7B
oklch(37.8% 0.109 264)
-
Step 950
950
#152548
oklch(27.1% 0.069 263.9)
#AEC9FF 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) | #B7CCFF | 0.015 |
| Deuteranopia (no green cones) | #AFC5FE | 0.010 |
| Tritanopia (no blue cones) | #97D4DB | 0.073 |
| Achromatopsia (no color) | #C8C8C8 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9FF
#AEC9FF
oklch(83.5% 0.082 264)
- #E2C58B
#E2C58B
oklch(83.5% 0.082 84.2)
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 #AEC9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.020
- Light Periwinkle #C1C6FC ΔE 0.024
- Pastel Blue #A2BFFE ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.046
- Sky #82CAFC ΔE 0.049
- Cloudy Blue #ACC2D9 ΔE 0.053
Use #AEC9FF 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.