#AEC9F0
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.9% 0.062 257.5), rgb(174, 201, 240).
Aa
Black text reads best on this color (12.41:1).
About this color
#AEC9F0 is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.062 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.022 away. Black text reads best on it, at 12.41:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.41:1 |
| White text | 1.69:1 |
Values
| HEX | #AEC9F0 |
| RGB | rgb(174, 201, 240) |
| HSL | hsl(215, 69%, 81%) |
| OKLCH | oklch(82.9% 0.062 257.5) |
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 #AEC9F0 | 1.69:1 | Fails | Lc -33.9 | Non-text elements, placeholder text |
| Black text on #AEC9F0 | 12.41:1 | AAA | Lc 73.7 | Content text, not long reading |
| #AEC9F0 text on white | 1.69:1 | Fails | Lc 30.1 | Non-text elements, placeholder text |
| #AEC9F0 text on black | 12.41:1 | AAA | Lc -72.7 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDAF0
oklch(88.4% 0.034 257.9)
-
Step 300
300 (this color)
#AEC9F0
oklch(82.9% 0.062 257.5)
-
Step 400
400
#79A2DF
oklch(70.7% 0.101 258.1)
-
Step 500
500
#568AD5
oklch(63.1% 0.127 257.6)
-
Step 600
600
#3A73C3
oklch(55.7% 0.138 257.3)
-
Step 700
700
#2C60A8
oklch(49.2% 0.128 257.2)
-
Step 800
800
#264E88
oklch(42.6% 0.107 257.9)
-
Step 900
900
#23426D
oklch(37.8% 0.083 257)
-
Step 950
950
#152740
oklch(27.1% 0.053 256.9)
#AEC9F0 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) | #BCCBF2 | 0.019 |
| Deuteranopia (no green cones) | #B5C4EF | 0.015 |
| Tritanopia (no blue cones) | #9CD1D6 | 0.054 |
| Achromatopsia (no color) | #C7C7C7 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9F0
#AEC9F0
oklch(82.9% 0.062 257.5)
- #DEC39A
#DEC39A
oklch(83% 0.062 78.1)
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 #AEC9F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.022
- Baby Blue #A2CFFE ΔE 0.024
- Light Steel Blue #B0C4DE ΔE 0.025
- Light Periwinkle #C1C6FC ΔE 0.033
- Cloudy Blue #ACC2D9 ΔE 0.033
- Pastel Blue #A2BFFE ΔE 0.041
- Light Sky Blue #87CEFA ΔE 0.043
- Sky Blue #87CEEB ΔE 0.046
Use #AEC9F0 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.