#AEC9CD
Closest named color: Cloudy Blue (#ACC2D9). oklch(81.7% 0.03 207.4), rgb(174, 201, 205).
Aa
Black text reads best on this color (12.03:1).
About this color
#AEC9CD is a light close to neutral grey. In OKLCH its lightness is 82%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.030 away. Black text reads best on it, at 12.03:1.
| Hue family | Neutrals |
| Lightness | light (82%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 12.03:1 |
| White text | 1.74:1 |
Values
| HEX | #AEC9CD |
| RGB | rgb(174, 201, 205) |
| HSL | hsl(188, 24%, 74%) |
| OKLCH | oklch(81.7% 0.03 207.4) |
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 #AEC9CD | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #AEC9CD | 12.03:1 | AAA | Lc 72.1 | Content text, not long reading |
| #AEC9CD text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #AEC9CD text on black | 12.03:1 | 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
#E4ECED
oklch(93.7% 0.009 205.9)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300 (this color)
#AEC9CD
oklch(81.7% 0.03 207.4)
-
Step 400
400
#7EA9B0
oklch(70.6% 0.047 208.6)
-
Step 500
500
#5C949C
oklch(63.1% 0.06 207.3)
-
Step 600
600
#3F7E87
oklch(55.5% 0.066 207.6)
-
Step 700
700
#316B73
oklch(49.2% 0.062 207.4)
-
Step 800
800
#2A575D
oklch(42.7% 0.05 206.8)
-
Step 900
900
#27484C
oklch(37.8% 0.039 205.6)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#AEC9CD 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) | #C4C7CD | 0.029 |
| Deuteranopia (no green cones) | #BFC2CD | 0.028 |
| Tritanopia (no blue cones) | #A5CCCA | 0.015 |
| Achromatopsia (no color) | #C4C4C4 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC9CD
#AEC9CD
oklch(81.7% 0.03 207.4)
- #D6BCB9
#D6BCB9
oklch(81.6% 0.03 25.6)
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 #AEC9CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.030
- Silver #C0C0C0 ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Celeste #A8DADC ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.044
- Ash Gray #BFC8AD ΔE 0.046
Use #AEC9CD 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.