#AAD9FF
Closest named color: Baby Blue (#A2CFFE). oklch(86.5% 0.072 243.1), rgb(170, 217, 255).
Aa
Black text reads best on this color (14.07:1).
About this color
#AAD9FF is a light, moderately saturated blue. In OKLCH its lightness is 87%, its chroma 0.072 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.029 away. Black text reads best on it, at 14.07:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 14.07:1 |
| White text | 1.49:1 |
Values
| HEX | #AAD9FF |
| RGB | rgb(170, 217, 255) |
| HSL | hsl(207, 100%, 83%) |
| OKLCH | oklch(86.5% 0.072 243.1) |
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 #AAD9FF | 1.49:1 | Fails | Lc -26.2 | Dividers and decoration only |
| Black text on #AAD9FF | 14.07:1 | AAA | Lc 80.7 | Fine for body text |
| #AAD9FF text on white | 1.49:1 | Fails | Lc 23.1 | Dividers and decoration only |
| #AAD9FF text on black | 14.07:1 | AAA | Lc -80.2 | Fine for body text |
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 200.
-
Step 50
50
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DBECFB
oklch(93.5% 0.027 244.7)
-
Step 200
200 (this color)
#AAD9FF
oklch(86.5% 0.072 243.1)
-
Step 300
300
#8BC8F8
oklch(80.9% 0.093 243)
-
Step 400
400
#39A9F5
oklch(70.7% 0.149 243.2)
-
Step 500
500
#0091DD
oklch(63.1% 0.152 242.9)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005483
oklch(42.8% 0.104 243)
-
Step 900
900
#00466E
oklch(37.8% 0.091 242.8)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#AAD9FF 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) | #C9D9FF | 0.037 |
| Deuteranopia (no green cones) | #BECFFE | 0.033 |
| Tritanopia (no blue cones) | #8FE2E5 | 0.059 |
| Achromatopsia (no color) | #D3D3D3 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAD9FF
#AAD9FF
oklch(86.5% 0.072 243.1)
- #F5C9A2
#F5C9A2
oklch(86.5% 0.072 63.2)
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 #AAD9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.029
- Light Blue #ADD8E6 ΔE 0.035
- Powder Blue #B0E0E6 ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.051
- Celeste #A8DADC ΔE 0.051
- Light Periwinkle #C1C6FC ΔE 0.053
- Sky Blue #87CEEB ΔE 0.056
Use #AAD9FF 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.