#AAC0EA
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.6% 0.064 263.3), rgb(170, 192, 234).
Aa
Black text reads best on this color (11.43:1).
About this color
#AAC0EA is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.064 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.024 away. Black text reads best on it, at 11.43:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.43:1 |
| White text | 1.83:1 |
Values
| HEX | #AAC0EA |
| RGB | rgb(170, 192, 234) |
| HSL | hsl(219, 60%, 79%) |
| OKLCH | oklch(80.6% 0.064 263.3) |
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 #AAC0EA | 1.83:1 | Fails | Lc -38.6 | Non-text elements, placeholder text |
| Black text on #AAC0EA | 11.43:1 | AAA | Lc 69.5 | Content text, not long reading |
| #AAC0EA text on white | 1.83:1 | Fails | Lc 34.4 | Non-text elements, placeholder text |
| #AAC0EA text on black | 11.43:1 | AAA | Lc -68.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDDAF2
oklch(88.6% 0.036 262.8)
-
Step 300
300 (this color)
#AAC0EA
oklch(80.6% 0.064 263.3)
-
Step 400
400
#7FA0E1
oklch(70.7% 0.103 263.3)
-
Step 500
500
#5F87D9
oklch(63.1% 0.132 263.4)
-
Step 600
600
#456FC6
oklch(55.5% 0.143 263.1)
-
Step 700
700
#375DAB
oklch(49.2% 0.132 262.9)
-
Step 800
800
#2E4C8B
oklch(42.7% 0.111 263.3)
-
Step 900
900
#29406F
oklch(37.8% 0.086 263.2)
-
Step 950
950
#182641
oklch(27.1% 0.054 262.5)
#AAC0EA 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) | #B2C2EC | 0.012 |
| Deuteranopia (no green cones) | #ACBDE9 | 0.008 |
| Tritanopia (no blue cones) | #99C8CE | 0.056 |
| Achromatopsia (no color) | #BFBFBF | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC0EA
#AAC0EA
oklch(80.6% 0.064 263.3)
- #D4BC90
#D4BC90
oklch(80.5% 0.065 82.5)
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 #AAC0EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.024
- Cloudy Blue #ACC2D9 ΔE 0.027
- Pastel Blue #A2BFFE ΔE 0.031
- Light Blue Grey #B7C9E2 ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Light Grey Blue #9DBCD4 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.041
- Light Periwinkle #C1C6FC ΔE 0.043
Use #AAC0EA 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.