#AAD9FA
Closest named color: Light Blue (#ADD8E6). oklch(86.3% 0.067 239.2), rgb(170, 217, 250).
Aa
Black text reads best on this color (14.01:1).
About this color
#AAD9FA is a light, muted blue. In OKLCH its lightness is 86%, its chroma 0.067 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.028 away. Black text reads best on it, at 14.01:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.01:1 |
| White text | 1.49:1 |
Values
| HEX | #AAD9FA |
| RGB | rgb(170, 217, 250) |
| HSL | hsl(205, 89%, 82%) |
| OKLCH | oklch(86.3% 0.067 239.2) |
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 #AAD9FA | 1.49:1 | Fails | Lc -26.5 | Dividers and decoration only |
| Black text on #AAD9FA | 14.01:1 | AAA | Lc 80.4 | Fine for body text |
| #AAD9FA text on white | 1.49:1 | Fails | Lc 23.3 | Dividers and decoration only |
| #AAD9FA text on black | 14.01:1 | AAA | Lc -79.9 | 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
#DBEDF9
oklch(93.6% 0.025 236.8)
-
Step 200
200 (this color)
#AAD9FA
oklch(86.3% 0.067 239.2)
-
Step 300
300
#8CC9F3
oklch(81% 0.086 239.3)
-
Step 400
400
#3AABED
oklch(70.7% 0.138 239.2)
-
Step 500
500
#0093D6
oklch(63.1% 0.143 239.3)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#AAD9FA 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) | #CBD8FC | 0.040 |
| Deuteranopia (no green cones) | #C0CFF9 | 0.035 |
| Tritanopia (no blue cones) | #90E1E4 | 0.052 |
| Achromatopsia (no color) | #D3D3D3 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAD9FA
#AAD9FA
oklch(86.3% 0.067 239.2)
- #F4C8A7
#F4C8A7
oklch(86.3% 0.067 58.6)
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 #AAD9FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.028
- Baby Blue #A2CFFE ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.039
- Celeste #A8DADC ΔE 0.044
- Light Blue Grey #B7C9E2 ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.051
- Sky Blue #87CEEB ΔE 0.054
- Light Periwinkle #C1C6FC ΔE 0.056
Use #AAD9FA 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.