#AEC9CC
Closest named color: Silver (#C0C0C0). oklch(81.7% 0.029 204.8), rgb(174, 201, 204).
Aa
Black text reads best on this color (12.02:1).
About this color
#AEC9CC is a light close to neutral grey. In OKLCH its lightness is 82%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Silver (#C0C0C0), ΔE 0.031 away. Black text reads best on it, at 12.02:1.
| Hue family | Neutrals |
| Lightness | light (82%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Silver (#C0C0C0) |
| Black text | 12.02:1 |
| White text | 1.74:1 |
Values
| HEX | #AEC9CC |
| RGB | rgb(174, 201, 204) |
| HSL | hsl(186, 23%, 74%) |
| OKLCH | oklch(81.7% 0.029 204.8) |
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 #AEC9CC | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #AEC9CC | 12.02:1 | AAA | Lc 72.0 | Content text, not long reading |
| #AEC9CC text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #AEC9CC text on black | 12.02:1 | AAA | Lc -70.9 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDCDE
oklch(88.4% 0.016 206.4)
-
Step 300
300 (this color)
#AEC9CC
oklch(81.7% 0.029 204.8)
-
Step 400
400
#7EAAAE
oklch(70.8% 0.048 203.1)
-
Step 500
500
#5C949B
oklch(63% 0.06 205.9)
-
Step 600
600
#407F85
oklch(55.7% 0.065 203.6)
-
Step 700
700
#316B71
oklch(49.2% 0.061 204.4)
-
Step 800
800
#2A575C
oklch(42.7% 0.05 205)
-
Step 900
900
#27484B
oklch(37.8% 0.039 203.2)
-
Step 950
950
#172A2C
oklch(27% 0.025 204.3)
#AEC9CC 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) | #C5C6CC | 0.030 |
| Deuteranopia (no green cones) | #BFC2CC | 0.028 |
| Tritanopia (no blue cones) | #A5CBCA | 0.013 |
| Achromatopsia (no color) | #C4C4C4 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9CC
#AEC9CC
oklch(81.7% 0.029 204.8)
- #D6BCBA
#D6BCBA
oklch(81.7% 0.03 23)
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 #AEC9CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver #C0C0C0 ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.033
- Light Blue Grey #B7C9E2 ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Celeste #A8DADC ΔE 0.044
- Ash Gray #BFC8AD ΔE 0.045
- Light Blue #ADD8E6 ΔE 0.045
Use #AEC9CC 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.