#AAC3DD
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.7% 0.046 249.4), rgb(170, 195, 221).
Aa
Black text reads best on this color (11.55:1).
About this color
#AAC3DD is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.046 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.006 away. Black text reads best on it, at 11.55:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.55:1 |
| White text | 1.81:1 |
Values
| HEX | #AAC3DD |
| RGB | rgb(170, 195, 221) |
| HSL | hsl(211, 43%, 77%) |
| OKLCH | oklch(80.7% 0.046 249.4) |
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 #AAC3DD | 1.81:1 | Fails | Lc -38.0 | Non-text elements, placeholder text |
| Black text on #AAC3DD | 11.55:1 | AAA | Lc 70.0 | Content text, not long reading |
| #AAC3DD text on white | 1.81:1 | Fails | Lc 33.9 | Non-text elements, placeholder text |
| #AAC3DD text on black | 11.55:1 | AAA | Lc -68.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300 (this color)
#AAC3DD
oklch(80.7% 0.046 249.4)
-
Step 400
400
#7DA5CD
oklch(70.8% 0.073 248.9)
-
Step 500
500
#5B8EC0
oklch(63.2% 0.094 249)
-
Step 600
600
#4077AC
oklch(55.6% 0.102 249.3)
-
Step 700
700
#326494
oklch(49.1% 0.094 249.5)
-
Step 800
800
#2A5278
oklch(42.8% 0.078 249)
-
Step 900
900
#274461
oklch(37.8% 0.061 249.7)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#AAC3DD 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) | #B9C3DE | 0.020 |
| Deuteranopia (no green cones) | #B3BEDC | 0.016 |
| Tritanopia (no blue cones) | #9CC9CB | 0.039 |
| Achromatopsia (no color) | #C0C0C0 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC3DD
#AAC3DD
oklch(80.7% 0.046 249.4)
- #D4BBA1
#D4BBA1
oklch(80.7% 0.046 68.2)
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 #AAC3DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.006
- Light Steel Blue #B0C4DE ΔE 0.008
- Light Cornflower Blue #98C1D9 ΔE 0.024
- Light Blue Grey #B7C9E2 ΔE 0.025
- Light Grey Blue #9DBCD4 ΔE 0.028
- Sky Blue #87CEEB ΔE 0.045
- Silver #C0C0C0 ΔE 0.046
- Baby Blue #A2CFFE ΔE 0.048
Use #AAC3DD 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.