#AAD3FE
Closest named color: Baby Blue (#A2CFFE). oklch(85.2% 0.074 249.9), rgb(170, 211, 254).
Aa
Black text reads best on this color (13.45:1).
About this color
#AAD3FE is a light, moderately saturated blue. In OKLCH its lightness is 85%, its chroma 0.074 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.015 away. Black text reads best on it, at 13.45:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.45:1 |
| White text | 1.56:1 |
Values
| HEX | #AAD3FE |
| RGB | rgb(170, 211, 254) |
| HSL | hsl(211, 98%, 83%) |
| OKLCH | oklch(85.2% 0.074 249.9) |
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 #AAD3FE | 1.56:1 | Fails | Lc -29.0 | Dividers and decoration only |
| Black text on #AAD3FE | 13.45:1 | AAA | Lc 78.1 | Fine for body text |
| #AAD3FE text on white | 1.56:1 | Fails | Lc 25.6 | Dividers and decoration only |
| #AAD3FE text on black | 13.45:1 | AAA | Lc -77.4 | 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
#EFF6FE
oklch(97% 0.013 251.6)
-
Step 100
100
#DCECFC
oklch(93.6% 0.028 248.1)
-
Step 200
200 (this color)
#AAD3FE
oklch(85.2% 0.074 249.9)
-
Step 300
300
#91C6FC
oklch(81% 0.095 249.5)
-
Step 400
400
#4BA5FB
oklch(70.6% 0.153 250)
-
Step 500
500
#008CEF
oklch(63% 0.178 249.9)
-
Step 600
600
#0076CA
oklch(55.7% 0.156 249.7)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518E
oklch(42.8% 0.121 249.9)
-
Step 900
900
#004377
oklch(37.7% 0.106 249.9)
-
Step 950
950
#00274A
oklch(26.9% 0.077 250.5)
#AAD3FE 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) | #C3D4FF | 0.031 |
| Deuteranopia (no green cones) | #B9CBFD | 0.026 |
| Tritanopia (no blue cones) | #90DDE1 | 0.064 |
| Achromatopsia (no color) | #CFCFCF | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAD3FE
#AAD3FE
oklch(85.2% 0.074 249.9)
- #EFC79A
#EFC79A
oklch(85.4% 0.074 69.9)
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 #AAD3FE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.015
- Light Blue #ADD8E6 ΔE 0.041
- Light Blue Grey #B7C9E2 ΔE 0.041
- Light Periwinkle #C1C6FC ΔE 0.041
- Light Sky Blue #87CEFA ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.050
- Sky Blue #87CEEB ΔE 0.050
- Sky #82CAFC ΔE 0.052
Use #AAD3FE 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.