#AEC4DA
Closest named color: Cloudy Blue (#ACC2D9). oklch(81.1% 0.039 248.3), rgb(174, 196, 218).
Aa
Black text reads best on this color (11.70:1).
About this color
#AEC4DA is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.039 and its hue 248°. 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 11.70:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.70:1 |
| White text | 1.79:1 |
Values
| HEX | #AEC4DA |
| RGB | rgb(174, 196, 218) |
| HSL | hsl(210, 37%, 77%) |
| OKLCH | oklch(81.1% 0.039 248.3) |
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 #AEC4DA | 1.79:1 | Fails | Lc -37.3 | Non-text elements, placeholder text |
| Black text on #AEC4DA | 11.70:1 | AAA | Lc 70.6 | Content text, not long reading |
| #AEC4DA text on white | 1.79:1 | Fails | Lc 33.2 | Non-text elements, placeholder text |
| #AEC4DA text on black | 11.70:1 | AAA | Lc -69.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300 (this color)
#AEC4DA
oklch(81.1% 0.039 248.3)
-
Step 400
400
#82A5C7
oklch(70.8% 0.063 248)
-
Step 500
500
#628EB8
oklch(63.2% 0.08 248.1)
-
Step 600
600
#4877A4
oklch(55.5% 0.087 248.7)
-
Step 700
700
#39648D
oklch(49.1% 0.082 248.8)
-
Step 800
800
#305272
oklch(42.7% 0.067 248.2)
-
Step 900
900
#2A445C
oklch(37.7% 0.052 247.5)
-
Step 950
950
#192836
oklch(27% 0.033 247.4)
#AEC4DA 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) | #BCC4DB | 0.018 |
| Deuteranopia (no green cones) | #B7BFDA | 0.017 |
| Tritanopia (no blue cones) | #A2C9CB | 0.033 |
| Achromatopsia (no color) | #C1C1C1 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4DA
#AEC4DA
oklch(81.1% 0.039 248.3)
- #D3BDA7
#D3BDA7
oklch(81.1% 0.039 67.2)
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 #AEC4DA, 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 0.007
- Light Blue Grey #B7C9E2 ΔE 0.020
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Light Grey Blue #9DBCD4 ΔE 0.032
- Silver #C0C0C0 ΔE 0.039
- Sky Blue #87CEEB ΔE 0.048
- French Gray #ADB5BD ΔE 0.048
Use #AEC4DA 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.