#AEC9EB
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.7% 0.056 254.3), rgb(174, 201, 235).
Aa
Black text reads best on this color (12.35:1).
About this color
#AEC9EB is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.056 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.016 away. Black text reads best on it, at 12.35:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.35:1 |
| White text | 1.69:1 |
Values
| HEX | #AEC9EB |
| RGB | rgb(174, 201, 235) |
| HSL | hsl(213, 60%, 80%) |
| OKLCH | oklch(82.7% 0.056 254.3) |
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 #AEC9EB | 1.69:1 | Fails | Lc -34.2 | Non-text elements, placeholder text |
| Black text on #AEC9EB | 12.35:1 | AAA | Lc 73.5 | Content text, not long reading |
| #AEC9EB text on white | 1.69:1 | Fails | Lc 30.4 | Non-text elements, placeholder text |
| #AEC9EB text on black | 12.35:1 | AAA | Lc -72.4 | 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
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDBEE
oklch(88.6% 0.031 254.3)
-
Step 300
300 (this color)
#AEC9EB
oklch(82.7% 0.056 254.3)
-
Step 400
400
#79A4D8
oklch(70.8% 0.09 253.7)
-
Step 500
500
#568CCD
oklch(63.1% 0.114 254)
-
Step 600
600
#3A75BA
oklch(55.6% 0.124 253.9)
-
Step 700
700
#2C62A1
oklch(49.2% 0.116 254.1)
-
Step 800
800
#265082
oklch(42.7% 0.096 254.3)
-
Step 900
900
#244368
oklch(37.8% 0.074 253.9)
-
Step 950
950
#15273D
oklch(26.9% 0.048 254.2)
#AEC9EB 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) | #BDCAED | 0.020 |
| Deuteranopia (no green cones) | #B6C4EA | 0.015 |
| Tritanopia (no blue cones) | #9DD0D4 | 0.048 |
| Achromatopsia (no color) | #C6C6C6 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9EB
#AEC9EB
oklch(82.7% 0.056 254.3)
- #DDC29E
#DDC29E
oklch(82.8% 0.057 74.8)
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 #AEC9EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.016
- Light Steel Blue #B0C4DE ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.028
- Baby Blue #A2CFFE ΔE 0.028
- Light Periwinkle #C1C6FC ΔE 0.038
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.044
Use #AEC9EB 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.