#AEC3D7
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.8% 0.036 247), rgb(174, 195, 215).
Aa
Black text reads best on this color (11.58:1).
About this color
#AEC3D7 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.036 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.005 away. Black text reads best on it, at 11.58:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.58:1 |
| White text | 1.81:1 |
Values
| HEX | #AEC3D7 |
| RGB | rgb(174, 195, 215) |
| HSL | hsl(209, 34%, 76%) |
| OKLCH | oklch(80.8% 0.036 247) |
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 #AEC3D7 | 1.81:1 | Fails | Lc -37.8 | Non-text elements, placeholder text |
| Black text on #AEC3D7 | 11.58:1 | AAA | Lc 70.1 | Content text, not long reading |
| #AEC3D7 text on white | 1.81:1 | Fails | Lc 33.8 | Non-text elements, placeholder text |
| #AEC3D7 text on black | 11.58:1 | AAA | Lc -68.8 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300 (this color)
#AEC3D7
oklch(80.8% 0.036 247)
-
Step 400
400
#84A5C4
oklch(70.8% 0.058 247)
-
Step 500
500
#648EB5
oklch(63.1% 0.075 247.3)
-
Step 600
600
#4A78A0
oklch(55.7% 0.08 246.1)
-
Step 700
700
#3B6489
oklch(49% 0.076 247.2)
-
Step 800
800
#31526F
oklch(42.6% 0.062 246.4)
-
Step 900
900
#2C445A
oklch(37.7% 0.048 247.1)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#AEC3D7 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) | #BBC3D8 | 0.017 |
| Deuteranopia (no green cones) | #B6BED7 | 0.016 |
| Tritanopia (no blue cones) | #A3C8C9 | 0.031 |
| Achromatopsia (no color) | #C0C0C0 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC3D7
#AEC3D7
oklch(80.8% 0.036 247)
- #D1BCA8
#D1BCA8
oklch(80.8% 0.036 65.9)
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 #AEC3D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.005
- Light Steel Blue #B0C4DE ΔE 0.010
- Light Blue Grey #B7C9E2 ΔE 0.024
- Light Cornflower Blue #98C1D9 ΔE 0.028
- Light Grey Blue #9DBCD4 ΔE 0.030
- Silver #C0C0C0 ΔE 0.036
- French Gray #ADB5BD ΔE 0.044
- Sky Blue #87CEEB ΔE 0.050
Use #AEC3D7 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.