#AAC3FF
Closest named color: Pastel Blue (#A2BFFE). oklch(82% 0.089 266.9), rgb(170, 195, 255).
Aa
Black text reads best on this color (11.95:1).
About this color
#AAC3FF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.089 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.015 away. Black text reads best on it, at 11.95:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.95:1 |
| White text | 1.75:1 |
Values
| HEX | #AAC3FF |
| RGB | rgb(170, 195, 255) |
| HSL | hsl(222, 100%, 83%) |
| OKLCH | oklch(82% 0.089 266.9) |
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 #AAC3FF | 1.75:1 | Fails | Lc -36.0 | Non-text elements, placeholder text |
| Black text on #AAC3FF | 11.95:1 | AAA | Lc 71.8 | Content text, not long reading |
| #AAC3FF text on white | 1.75:1 | Fails | Lc 32.1 | Non-text elements, placeholder text |
| #AAC3FF text on black | 11.95:1 | AAA | Lc -70.6 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FB
oklch(88.5% 0.05 266.5)
-
Step 300
300 (this color)
#AAC3FF
oklch(82% 0.089 266.9)
-
Step 400
400
#789CFA
oklch(70.7% 0.144 266.9)
-
Step 500
500
#5780F7
oklch(63.1% 0.183 266.8)
-
Step 600
600
#3F66E5
oklch(55.6% 0.198 266.8)
-
Step 700
700
#3253C7
oklch(49% 0.185 267.1)
-
Step 800
800
#2945A1
oklch(42.6% 0.153 266.8)
-
Step 900
900
#253B80
oklch(37.6% 0.12 267.1)
-
Step 950
950
#16234B
oklch(26.9% 0.076 267.6)
#AAC3FF 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) | #AFC7FF | 0.013 |
| Deuteranopia (no green cones) | #A8C0FE | 0.008 |
| Tritanopia (no blue cones) | #91CFD7 | 0.081 |
| Achromatopsia (no color) | #C3C3C3 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC3FF
#AAC3FF
oklch(82% 0.089 266.9)
- #DDC180
#DDC180
oklch(82% 0.089 87.1)
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 #AAC3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.015
- Light Periwinkle #C1C6FC ΔE 0.032
- Baby Blue #A2CFFE ΔE 0.033
- Sky #82CAFC ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.049
- Carolina Blue #8AB8FE ΔE 0.051
- Light Blue Grey #B7C9E2 ΔE 0.051
Use #AAC3FF 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.