#AAC5FD
Closest named color: Pastel Blue (#A2BFFE). oklch(82.3% 0.085 264.6), rgb(170, 197, 253).
Aa
Black text reads best on this color (12.11:1).
About this color
#AAC5FD is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.085 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.020 away. Black text reads best on it, at 12.11:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.11:1 |
| White text | 1.73:1 |
Values
| HEX | #AAC5FD |
| RGB | rgb(170, 197, 253) |
| HSL | hsl(220, 95%, 83%) |
| OKLCH | oklch(82.3% 0.085 264.6) |
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 #AAC5FD | 1.73:1 | Fails | Lc -35.3 | Non-text elements, placeholder text |
| Black text on #AAC5FD | 12.11:1 | AAA | Lc 72.5 | Content text, not long reading |
| #AAC5FD text on white | 1.73:1 | Fails | Lc 31.4 | Non-text elements, placeholder text |
| #AAC5FD text on black | 12.11:1 | AAA | Lc -71.3 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9F9
oklch(88.4% 0.047 265.5)
-
Step 300
300 (this color)
#AAC5FD
oklch(82.3% 0.085 264.6)
-
Step 400
400
#769EF5
oklch(70.7% 0.135 264.5)
-
Step 500
500
#5483F1
oklch(63.2% 0.173 264.6)
-
Step 600
600
#3A69DF
oklch(55.5% 0.188 264.6)
-
Step 700
700
#2D57C2
oklch(49.2% 0.174 264.6)
-
Step 800
800
#26489D
oklch(42.8% 0.144 264.6)
-
Step 900
900
#233D7D
oklch(37.7% 0.113 264.9)
-
Step 950
950
#142449
oklch(26.9% 0.072 264.5)
#AAC5FD 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) | #B2C9FF | 0.015 |
| Deuteranopia (no green cones) | #AAC1FC | 0.010 |
| Tritanopia (no blue cones) | #92D0D8 | 0.075 |
| Achromatopsia (no color) | #C5C5C5 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC5FD
#AAC5FD
oklch(82.3% 0.085 264.6)
- #DFC185
#DFC185
oklch(82.3% 0.085 84.1)
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 #AAC5FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.020
- Baby Blue #A2CFFE ΔE 0.027
- Light Periwinkle #C1C6FC ΔE 0.030
- Light Steel Blue #B0C4DE ΔE 0.044
- Light Sky Blue #87CEFA ΔE 0.044
- Sky #82CAFC ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.050
Use #AAC5FD 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.