#AEC4D3
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.8% 0.032 237.7), rgb(174, 196, 211).
Aa
Black text reads best on this color (11.63:1).
About this color
#AEC4D3 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.032 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.012 away. Black text reads best on it, at 11.63:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.63:1 |
| White text | 1.80:1 |
Values
| HEX | #AEC4D3 |
| RGB | rgb(174, 196, 211) |
| HSL | hsl(204, 30%, 75%) |
| OKLCH | oklch(80.8% 0.032 237.7) |
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 #AEC4D3 | 1.80:1 | Fails | Lc -37.6 | Non-text elements, placeholder text |
| Black text on #AEC4D3 | 11.63:1 | AAA | Lc 70.3 | Content text, not long reading |
| #AEC4D3 text on white | 1.80:1 | Fails | Lc 33.5 | Non-text elements, placeholder text |
| #AEC4D3 text on black | 11.63:1 | AAA | Lc -69.1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CFDBE4
oklch(88.5% 0.018 240)
-
Step 300
300 (this color)
#AEC4D3
oklch(80.8% 0.032 237.7)
-
Step 400
400
#83A6BD
oklch(70.7% 0.051 237.2)
-
Step 500
500
#6390AD
oklch(63.2% 0.066 237.5)
-
Step 600
600
#497A98
oklch(55.7% 0.071 236.8)
-
Step 700
700
#3A6682
oklch(49.1% 0.066 238.1)
-
Step 800
800
#30536A
oklch(42.6% 0.056 238.8)
-
Step 900
900
#2B4556
oklch(37.7% 0.043 238.1)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#AEC4D3 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) | #BEC3D4 | 0.021 |
| Deuteranopia (no green cones) | #B8BFD3 | 0.018 |
| Tritanopia (no blue cones) | #A4C8C9 | 0.024 |
| Achromatopsia (no color) | #C1C1C1 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4D3
#AEC4D3
oklch(80.8% 0.032 237.7)
- #D1BCAD
#D1BCAD
oklch(80.9% 0.032 57.8)
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 #AEC4D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.012
- Light Steel Blue #B0C4DE ΔE 0.016
- Light Blue Grey #B7C9E2 ΔE 0.026
- Light Cornflower Blue #98C1D9 ΔE 0.030
- Silver #C0C0C0 ΔE 0.032
- Light Grey Blue #9DBCD4 ΔE 0.033
- French Gray #ADB5BD ΔE 0.043
- Sky Blue #87CEEB ΔE 0.051
Use #AEC4D3 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.