#AAC9FD
Closest named color: Baby Blue (#A2CFFE). oklch(83.1% 0.081 260.7), rgb(170, 201, 253).
Aa
Black text reads best on this color (12.48:1).
About this color
#AAC9FD is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.081 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.017 away. Black text reads best on it, at 12.48:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 12.48:1 |
| White text | 1.68:1 |
Values
| HEX | #AAC9FD |
| RGB | rgb(170, 201, 253) |
| HSL | hsl(218, 95%, 83%) |
| OKLCH | oklch(83.1% 0.081 260.7) |
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 #AAC9FD | 1.68:1 | Fails | Lc -33.5 | Non-text elements, placeholder text |
| Black text on #AAC9FD | 12.48:1 | AAA | Lc 74.0 | Content text, not long reading |
| #AAC9FD text on white | 1.68:1 | Fails | Lc 29.8 | Dividers and decoration only |
| #AAC9FD text on black | 12.48:1 | AAA | Lc -73.0 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF8
oklch(88.5% 0.045 261.9)
-
Step 300
300 (this color)
#AAC9FD
oklch(83.1% 0.081 260.7)
-
Step 400
400
#71A0F1
oklch(70.7% 0.13 260.8)
-
Step 500
500
#4C86EC
oklch(63.1% 0.165 260.8)
-
Step 600
600
#2E6DDA
oklch(55.6% 0.179 260.6)
-
Step 700
700
#215ABD
oklch(49% 0.167 260.7)
-
Step 800
800
#1D4A99
oklch(42.6% 0.139 260.8)
-
Step 900
900
#1D3F7A
oklch(37.7% 0.108 260.6)
-
Step 950
950
#122547
oklch(26.9% 0.068 261.1)
#AAC9FD 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) | #B7CCFF | 0.019 |
| Deuteranopia (no green cones) | #AFC4FC | 0.014 |
| Tritanopia (no blue cones) | #91D4DA | 0.073 |
| Achromatopsia (no color) | #C7C7C7 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC9FD
#AAC9FD
oklch(83.1% 0.081 260.7)
- #E3C38B
#E3C38B
oklch(83.2% 0.081 81.2)
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 #AAC9FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.017
- Light Periwinkle #C1C6FC ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.030
- Light Sky Blue #87CEFA ΔE 0.040
- Light Blue Grey #B7C9E2 ΔE 0.041
- Light Steel Blue #B0C4DE ΔE 0.042
- Sky #82CAFC ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.049
Use #AAC9FD 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.