#AAC1DF
Closest named color: Cloudy Blue (#ACC2D9). oklch(80.4% 0.05 255.1), rgb(170, 193, 223).
Aa
Black text reads best on this color (11.40:1).
About this color
#AAC1DF is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.050 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.010 away. Black text reads best on it, at 11.40:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.40:1 |
| White text | 1.84:1 |
Values
| HEX | #AAC1DF |
| RGB | rgb(170, 193, 223) |
| HSL | hsl(214, 45%, 77%) |
| OKLCH | oklch(80.4% 0.05 255.1) |
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 #AAC1DF | 1.84:1 | Fails | Lc -38.7 | Non-text elements, placeholder text |
| Black text on #AAC1DF | 11.40:1 | AAA | Lc 69.3 | Content text, not long reading |
| #AAC1DF text on white | 1.84:1 | Fails | Lc 34.6 | Non-text elements, placeholder text |
| #AAC1DF text on black | 11.40:1 | AAA | Lc -68.0 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EBF4
oklch(93.7% 0.014 254.6)
-
Step 200
200
#CDDAEC
oklch(88.4% 0.029 256.5)
-
Step 300
300 (this color)
#AAC1DF
oklch(80.4% 0.05 255.1)
-
Step 400
400
#7FA3D2
oklch(70.7% 0.08 255.3)
-
Step 500
500
#5E8CC6
oklch(63.2% 0.101 254.8)
-
Step 600
600
#4475B2
oklch(55.6% 0.109 254.8)
-
Step 700
700
#366299
oklch(49.1% 0.101 255)
-
Step 800
800
#2D507C
oklch(42.7% 0.084 255)
-
Step 900
900
#294364
oklch(37.8% 0.065 255)
-
Step 950
950
#18273B
oklch(27% 0.043 255.9)
#AAC1DF 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) | #B7C2E0 | 0.017 |
| Deuteranopia (no green cones) | #B1BDDE | 0.013 |
| Tritanopia (no blue cones) | #9CC7CB | 0.042 |
| Achromatopsia (no color) | #BFBFBF | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC1DF
#AAC1DF
oklch(80.4% 0.05 255.1)
- #D2BB9C
#D2BB9C
oklch(80.4% 0.05 75.2)
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 #AAC1DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.010
- Light Steel Blue #B0C4DE ΔE 0.012
- Light Cornflower Blue #98C1D9 ΔE 0.024
- Light Grey Blue #9DBCD4 ΔE 0.026
- Light Blue Grey #B7C9E2 ΔE 0.028
- Sky Blue #87CEEB ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.047
- Baby Blue #A2CFFE ΔE 0.048
Use #AAC1DF 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.