#AAC3EE
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.3% 0.067 261.2), rgb(170, 195, 238).
Aa
Black text reads best on this color (11.74:1).
About this color
#AAC3EE is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.067 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.025 away. Black text reads best on it, at 11.74:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.74:1 |
| White text | 1.78:1 |
Values
| HEX | #AAC3EE |
| RGB | rgb(170, 195, 238) |
| HSL | hsl(218, 67%, 80%) |
| OKLCH | oklch(81.3% 0.067 261.2) |
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 #AAC3EE | 1.78:1 | Fails | Lc -37.0 | Non-text elements, placeholder text |
| Black text on #AAC3EE | 11.74:1 | AAA | Lc 70.8 | Content text, not long reading |
| #AAC3EE text on white | 1.78:1 | Fails | Lc 33.0 | Non-text elements, placeholder text |
| #AAC3EE text on black | 11.74:1 | AAA | Lc -69.6 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300 (this color)
#AAC3EE
oklch(81.3% 0.067 261.2)
-
Step 400
400
#7BA1E3
oklch(70.8% 0.106 261.1)
-
Step 500
500
#5988DB
oklch(63.1% 0.136 261)
-
Step 600
600
#3F70C9
oklch(55.7% 0.148 261.3)
-
Step 700
700
#315DAE
oklch(49.1% 0.138 261.4)
-
Step 800
800
#294C8D
oklch(42.6% 0.115 261.5)
-
Step 900
900
#254070
oklch(37.6% 0.089 261.1)
-
Step 950
950
#162642
oklch(27% 0.057 260.9)
#AAC3EE 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) | #B5C5F0 | 0.016 |
| Deuteranopia (no green cones) | #AEBFED | 0.011 |
| Tritanopia (no blue cones) | #97CCD1 | 0.060 |
| Achromatopsia (no color) | #C2C2C2 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC3EE
#AAC3EE
oklch(81.3% 0.067 261.2)
- #D8BE91
#D8BE91
oklch(81.3% 0.067 81.1)
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 #AAC3EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.025
- Cloudy Blue #ACC2D9 ΔE 0.030
- Pastel Blue #A2BFFE ΔE 0.030
- Light Blue Grey #B7C9E2 ΔE 0.032
- Baby Blue #A2CFFE ΔE 0.033
- Light Periwinkle #C1C6FC ΔE 0.038
- Light Cornflower Blue #98C1D9 ΔE 0.039
- Light Grey Blue #9DBCD4 ΔE 0.043
Use #AAC3EE 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.