#AEC1DE
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.6% 0.046 258.8), rgb(174, 193, 222).
Aa
Black text reads best on this color (11.48:1).
About this color
#AEC1DE is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.046 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.009 away. Black text reads best on it, at 11.48:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.48:1 |
| White text | 1.82:1 |
Values
| HEX | #AEC1DE |
| RGB | rgb(174, 193, 222) |
| HSL | hsl(216, 42%, 78%) |
| OKLCH | oklch(80.6% 0.046 258.8) |
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 #AEC1DE | 1.82:1 | Fails | Lc -38.3 | Non-text elements, placeholder text |
| Black text on #AEC1DE | 11.48:1 | AAA | Lc 69.6 | Content text, not long reading |
| #AEC1DE text on white | 1.82:1 | Fails | Lc 34.2 | Non-text elements, placeholder text |
| #AEC1DE text on black | 11.48:1 | AAA | Lc -68.4 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#CFDAEA
oklch(88.5% 0.025 257.6)
-
Step 300
300 (this color)
#AEC1DE
oklch(80.6% 0.046 258.8)
-
Step 400
400
#85A2CF
oklch(70.7% 0.074 259)
-
Step 500
500
#668AC2
oklch(63% 0.094 259)
-
Step 600
600
#4D74AF
oklch(55.7% 0.102 258.4)
-
Step 700
700
#3E6196
oklch(49.1% 0.095 258.5)
-
Step 800
800
#334F7A
oklch(42.6% 0.08 258.7)
-
Step 900
900
#2D4262
oklch(37.7% 0.061 258.6)
-
Step 950
950
#1B2739
oklch(27.1% 0.038 258.3)
#AEC1DE 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) | #B7C2DF | 0.012 |
| Deuteranopia (no green cones) | #B2BDDD | 0.011 |
| Tritanopia (no blue cones) | #A2C7CA | 0.041 |
| Achromatopsia (no color) | #C0C0C0 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC1DE
#AEC1DE
oklch(80.6% 0.046 258.8)
- #D0BD9F
#D0BD9F
oklch(80.7% 0.046 79.2)
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 #AEC1DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.009
- Cloudy Blue #ACC2D9 ΔE 0.009
- Light Blue Grey #B7C9E2 ΔE 0.025
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Light Grey Blue #9DBCD4 ΔE 0.029
- Silver #C0C0C0 ΔE 0.046
- French Gray #ADB5BD ΔE 0.049
- Baby Blue #A2CFFE ΔE 0.049
Use #AEC1DE 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.