#AAC4DC
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.9% 0.044 246.2), rgb(170, 196, 220).
Aa
Black text reads best on this color (11.63:1).
About this color
#AAC4DC is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.044 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.006 away. Black text reads best on it, at 11.63:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.63:1 |
| White text | 1.80:1 |
Values
| HEX | #AAC4DC |
| RGB | rgb(170, 196, 220) |
| HSL | hsl(209, 42%, 76%) |
| OKLCH | oklch(80.9% 0.044 246.2) |
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 #AAC4DC | 1.80:1 | Fails | Lc -37.6 | Non-text elements, placeholder text |
| Black text on #AAC4DC | 11.63:1 | AAA | Lc 70.3 | Content text, not long reading |
| #AAC4DC text on white | 1.80:1 | Fails | Lc 33.5 | Non-text elements, placeholder text |
| #AAC4DC 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300 (this color)
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7CA5CB
oklch(70.6% 0.072 246.9)
-
Step 500
500
#5A8FBD
oklch(63.2% 0.09 246)
-
Step 600
600
#3E78A9
oklch(55.5% 0.098 246.3)
-
Step 700
700
#306591
oklch(49.1% 0.091 246.1)
-
Step 800
800
#285276
oklch(42.6% 0.076 246.7)
-
Step 900
900
#26445F
oklch(37.6% 0.059 247.2)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#AAC4DC 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) | #BBC4DD | 0.022 |
| Deuteranopia (no green cones) | #B5BEDC | 0.020 |
| Tritanopia (no blue cones) | #9CCACC | 0.037 |
| Achromatopsia (no color) | #C1C1C1 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC4DC
#AAC4DC
oklch(80.9% 0.044 246.2)
- #D5BBA3
#D5BBA3
oklch(80.8% 0.044 64.9)
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 #AAC4DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.006
- Light Steel Blue #B0C4DE ΔE 0.008
- Light Blue Grey #B7C9E2 ΔE 0.023
- Light Cornflower Blue #98C1D9 ΔE 0.025
- Light Grey Blue #9DBCD4 ΔE 0.029
- Sky Blue #87CEEB ΔE 0.044
- Silver #C0C0C0 ΔE 0.044
- Baby Blue #A2CFFE ΔE 0.048
Use #AAC4DC 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.