#AEC9E0
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.3% 0.044 244), rgb(174, 201, 224).
Aa
Black text reads best on this color (12.23:1).
About this color
#AEC9E0 is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.044 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.012 away. Black text reads best on it, at 12.23:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.23:1 |
| White text | 1.71:1 |
Values
| HEX | #AEC9E0 |
| RGB | rgb(174, 201, 224) |
| HSL | hsl(208, 45%, 78%) |
| OKLCH | oklch(82.3% 0.044 244) |
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 #AEC9E0 | 1.71:1 | Fails | Lc -34.8 | Non-text elements, placeholder text |
| Black text on #AEC9E0 | 12.23:1 | AAA | Lc 72.9 | Content text, not long reading |
| #AEC9E0 text on white | 1.71:1 | Fails | Lc 30.9 | Non-text elements, placeholder text |
| #AEC9E0 text on black | 12.23:1 | AAA | Lc -71.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300 (this color)
#AEC9E0
oklch(82.3% 0.044 244)
-
Step 400
400
#7BA6C9
oklch(70.7% 0.069 243.5)
-
Step 500
500
#588FBC
oklch(63% 0.09 244.6)
-
Step 600
600
#3C79A8
oklch(55.6% 0.097 244.1)
-
Step 700
700
#2D6690
oklch(49.2% 0.09 243.5)
-
Step 800
800
#275375
oklch(42.7% 0.075 244.2)
-
Step 900
900
#24455E
oklch(37.7% 0.058 243)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#AEC9E0 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) | #C0C9E1 | 0.023 |
| Deuteranopia (no green cones) | #BAC3E0 | 0.021 |
| Tritanopia (no blue cones) | #A0CED0 | 0.035 |
| Achromatopsia (no color) | #C6C6C6 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9E0
#AEC9E0
oklch(82.3% 0.044 244)
- #DAC0A8
#DAC0A8
oklch(82.4% 0.044 64.9)
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 #AEC9E0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.012
- Light Steel Blue #B0C4DE ΔE 0.013
- Cloudy Blue #ACC2D9 ΔE 0.019
- Light Cornflower Blue #98C1D9 ΔE 0.037
- Light Blue #ADD8E6 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.042
- Light Grey Blue #9DBCD4 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.044
Use #AEC9E0 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.