#AAC1DD
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.3% 0.047 253.5), rgb(170, 193, 221).
Aa
Black text reads best on this color (11.38:1).
About this color
#AAC1DD is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.047 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.007 away. Black text reads best on it, at 11.38:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.38:1 |
| White text | 1.84:1 |
Values
| HEX | #AAC1DD |
| RGB | rgb(170, 193, 221) |
| HSL | hsl(213, 43%, 77%) |
| OKLCH | oklch(80.3% 0.047 253.5) |
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 #AAC1DD | 1.84:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #AAC1DD | 11.38:1 | AAA | Lc 69.2 | Content text, not long reading |
| #AAC1DD text on white | 1.84:1 | Fails | Lc 34.7 | Non-text elements, placeholder text |
| #AAC1DD text on black | 11.38:1 | AAA | Lc -67.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300 (this color)
#AAC1DD
oklch(80.3% 0.047 253.5)
-
Step 400
400
#80A4CF
oklch(70.8% 0.075 253.2)
-
Step 500
500
#5F8CC3
oklch(63.1% 0.097 254.1)
-
Step 600
600
#4476AF
oklch(55.7% 0.104 252.9)
-
Step 700
700
#366396
oklch(49.2% 0.096 252.9)
-
Step 800
800
#2D517A
oklch(42.8% 0.08 252.9)
-
Step 900
900
#294362
oklch(37.7% 0.062 253.6)
-
Step 950
950
#182739
oklch(26.8% 0.04 253.6)
#AAC1DD 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) | #B7C2DE | 0.017 |
| Deuteranopia (no green cones) | #B1BCDC | 0.015 |
| Tritanopia (no blue cones) | #9CC7CA | 0.041 |
| Achromatopsia (no color) | #BFBFBF | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC1DD
#AAC1DD
oklch(80.3% 0.047 253.5)
- #D2BB9E
#D2BB9E
oklch(80.4% 0.047 73.5)
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 #AAC1DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.007
- Light Steel Blue #B0C4DE ΔE 0.012
- Light Cornflower Blue #98C1D9 ΔE 0.023
- Light Grey Blue #9DBCD4 ΔE 0.025
- Light Blue Grey #B7C9E2 ΔE 0.028
- French Gray #ADB5BD ΔE 0.047
- Sky Blue #87CEEB ΔE 0.047
- Silver #C0C0C0 ΔE 0.047
Use #AAC1DD 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.