#AEC1DC
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.5% 0.044 257.1), rgb(174, 193, 220).
Aa
Black text reads best on this color (11.46:1).
About this color
#AEC1DC is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.044 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.006 away. Black text reads best on it, at 11.46:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.46:1 |
| White text | 1.83:1 |
Values
| HEX | #AEC1DC |
| RGB | rgb(174, 193, 220) |
| HSL | hsl(215, 40%, 77%) |
| OKLCH | oklch(80.5% 0.044 257.1) |
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 #AEC1DC | 1.83:1 | Fails | Lc -38.5 | Non-text elements, placeholder text |
| Black text on #AEC1DC | 11.46:1 | AAA | Lc 69.5 | Content text, not long reading |
| #AEC1DC text on white | 1.83:1 | Fails | Lc 34.3 | Non-text elements, placeholder text |
| #AEC1DC text on black | 11.46:1 | AAA | Lc -68.3 | 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
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#CFDAE9
oklch(88.5% 0.024 256.1)
-
Step 300
300 (this color)
#AEC1DC
oklch(80.5% 0.044 257.1)
-
Step 400
400
#85A3CC
oklch(70.8% 0.069 256.3)
-
Step 500
500
#668BBF
oklch(63% 0.089 257)
-
Step 600
600
#4D74AB
oklch(55.5% 0.097 257.1)
-
Step 700
700
#3E6293
oklch(49.2% 0.089 256.4)
-
Step 800
800
#345077
oklch(42.8% 0.074 256.8)
-
Step 900
900
#2D4260
oklch(37.6% 0.058 257.3)
-
Step 950
950
#1B2738
oklch(27% 0.036 257.1)
#AEC1DC 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) | #B8C2DD | 0.014 |
| Deuteranopia (no green cones) | #B3BDDB | 0.012 |
| Tritanopia (no blue cones) | #A2C7CA | 0.038 |
| Achromatopsia (no color) | #BFBFBF | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC1DC
#AEC1DC
oklch(80.5% 0.044 257.1)
- #D0BCA1
#D0BCA1
oklch(80.5% 0.043 75.3)
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 #AEC1DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.006
- Light Steel Blue #B0C4DE ΔE 0.009
- Light Blue Grey #B7C9E2 ΔE 0.025
- Light Cornflower Blue #98C1D9 ΔE 0.028
- Light Grey Blue #9DBCD4 ΔE 0.028
- Silver #C0C0C0 ΔE 0.044
- French Gray #ADB5BD ΔE 0.047
- Sky Blue #87CEEB ΔE 0.051
Use #AEC1DC 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.