#AAC0CB
Closest named color: Cloudy Blue (#ACC2D9). oklch(79.5% 0.029 229.3), rgb(170, 192, 203).
Aa
Black text reads best on this color (11.11:1).
About this color
#AAC0CB is a light close to neutral grey. In OKLCH its lightness is 79%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.020 away. Black text reads best on it, at 11.11:1.
| Hue family | Neutrals |
| Lightness | light (79%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.11:1 |
| White text | 1.88:1 |
Values
| HEX | #AAC0CB |
| RGB | rgb(170, 192, 203) |
| HSL | hsl(200, 24%, 73%) |
| OKLCH | oklch(79.5% 0.029 229.3) |
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 #AAC0CB | 1.88:1 | Fails | Lc -40.2 | Non-text elements, placeholder text |
| Black text on #AAC0CB | 11.11:1 | AAA | Lc 68.0 | Content text, not long reading |
| #AAC0CB text on white | 1.88:1 | Fails | Lc 35.9 | Non-text elements, placeholder text |
| #AAC0CB text on black | 11.11:1 | AAA | Lc -66.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300 (this color)
#AAC0CB
oklch(79.5% 0.029 229.3)
-
Step 400
400
#84A7B8
oklch(70.8% 0.046 229.1)
-
Step 500
500
#6491A6
oklch(63.2% 0.058 228.8)
-
Step 600
600
#4A7B91
oklch(55.7% 0.063 228.5)
-
Step 700
700
#3B677C
oklch(49.1% 0.059 230.3)
-
Step 800
800
#315465
oklch(42.7% 0.049 230.5)
-
Step 900
900
#2B4652
oklch(37.8% 0.039 227.9)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#AAC0CB 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) | #BABFCC | 0.021 |
| Deuteranopia (no green cones) | #B6BBCB | 0.020 |
| Tritanopia (no blue cones) | #A1C3C3 | 0.020 |
| Achromatopsia (no color) | #BCBCBC | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC0CB
#AAC0CB
oklch(79.5% 0.029 229.3)
- #CCB7AC
#CCB7AC
oklch(79.4% 0.029 49.5)
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 #AAC0CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.020
- Light Grey Blue #9DBCD4 ΔE 0.025
- Light Cornflower Blue #98C1D9 ΔE 0.027
- Light Steel Blue #B0C4DE ΔE 0.028
- French Gray #ADB5BD ΔE 0.030
- Silver #C0C0C0 ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.041
- Sky Blue #87CEEB ΔE 0.057
Use #AAC0CB 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.