#AAC1EB
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.8% 0.065 262.4), rgb(170, 193, 235).
Aa
Black text reads best on this color (11.53:1).
About this color
#AAC1EB is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.065 and its hue 262°. 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 11.53:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.53:1 |
| White text | 1.82:1 |
Values
| HEX | #AAC1EB |
| RGB | rgb(170, 193, 235) |
| HSL | hsl(219, 62%, 79%) |
| OKLCH | oklch(80.8% 0.065 262.4) |
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 #AAC1EB | 1.82:1 | Fails | Lc -38.1 | Non-text elements, placeholder text |
| Black text on #AAC1EB | 11.53:1 | AAA | Lc 69.9 | Content text, not long reading |
| #AAC1EB text on white | 1.82:1 | Fails | Lc 34.0 | Non-text elements, placeholder text |
| #AAC1EB text on black | 11.53:1 | AAA | Lc -68.6 | 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
#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)
#AAC1EB
oklch(80.8% 0.065 262.4)
-
Step 400
400
#7DA0E2
oklch(70.6% 0.105 262.6)
-
Step 500
500
#5D87D9
oklch(63% 0.133 262.7)
-
Step 600
600
#4370C7
oklch(55.7% 0.144 262.2)
-
Step 700
700
#355DAC
oklch(49.1% 0.134 262.4)
-
Step 800
800
#2C4C8B
oklch(42.6% 0.111 262.4)
-
Step 900
900
#28406F
oklch(37.7% 0.086 262.6)
-
Step 950
950
#182641
oklch(27.1% 0.054 262.5)
#AAC1EB 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) | #B3C3ED | 0.013 |
| Deuteranopia (no green cones) | #ADBDEA | 0.011 |
| Tritanopia (no blue cones) | #98CACF | 0.058 |
| Achromatopsia (no color) | #C0C0C0 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC1EB
#AAC1EB
oklch(80.8% 0.065 262.4)
- #D5BD91
#D5BD91
oklch(80.8% 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 #AAC1EB, 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 0.034
- Light Cornflower Blue #98C1D9 ΔE 0.036
- Light Grey Blue #9DBCD4 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.039
- Light Periwinkle #C1C6FC ΔE 0.041
Use #AAC1EB 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.