#AEC1CF
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.1% 0.029 239.8), rgb(174, 193, 207).
Aa
Black text reads best on this color (11.32:1).
About this color
#AEC1CF is a light close to neutral grey. In OKLCH its lightness is 80%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.014 away. Black text reads best on it, at 11.32:1.
| Hue family | Neutrals |
| Lightness | light (80%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.32:1 |
| White text | 1.85:1 |
Values
| HEX | #AEC1CF |
| RGB | rgb(174, 193, 207) |
| HSL | hsl(205, 26%, 75%) |
| OKLCH | oklch(80.1% 0.029 239.8) |
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 #AEC1CF | 1.85:1 | Fails | Lc -39.1 | Non-text elements, placeholder text |
| Black text on #AEC1CF | 11.32:1 | AAA | Lc 69.0 | Content text, not long reading |
| #AEC1CF text on white | 1.85:1 | Fails | Lc 34.9 | Non-text elements, placeholder text |
| #AEC1CF text on black | 11.32:1 | AAA | Lc -67.6 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE3
oklch(88.5% 0.016 239.1)
-
Step 300
300 (this color)
#AEC1CF
oklch(80.1% 0.029 239.8)
-
Step 400
400
#87A5BB
oklch(70.7% 0.046 240.1)
-
Step 500
500
#698FAA
oklch(63.2% 0.059 239.8)
-
Step 600
600
#507995
oklch(55.7% 0.063 239.2)
-
Step 700
700
#40657F
oklch(49% 0.06 240.2)
-
Step 800
800
#355367
oklch(42.7% 0.049 238.6)
-
Step 900
900
#2E4554
oklch(37.8% 0.038 237.7)
-
Step 950
950
#1B2831
oklch(26.9% 0.025 239.1)
#AEC1CF 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) | #BBC0D0 | 0.017 |
| Deuteranopia (no green cones) | #B7BDCF | 0.015 |
| Tritanopia (no blue cones) | #A6C5C5 | 0.023 |
| Achromatopsia (no color) | #BEBEBE | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC1CF
#AEC1CF
oklch(80.1% 0.029 239.8)
- #CDBAAC
#CDBAAC
oklch(80.1% 0.029 58.7)
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 #AEC1CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.014
- Light Steel Blue #B0C4DE ΔE 0.021
- Light Grey Blue #9DBCD4 ΔE 0.028
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Silver #C0C0C0 ΔE 0.030
- Light Blue Grey #B7C9E2 ΔE 0.033
- French Gray #ADB5BD ΔE 0.035
- Sky Blue #87CEEB ΔE 0.056
Use #AEC1CF 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.