#AAC0EE
Closest named color: Pastel Blue (#A2BFFE). oklch(80.7% 0.07 264.9), rgb(170, 192, 238).
Aa
Black text reads best on this color (11.48:1).
About this color
#AAC0EE is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.070 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.026 away. Black text reads best on it, at 11.48:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.48:1 |
| White text | 1.82:1 |
Values
| HEX | #AAC0EE |
| RGB | rgb(170, 192, 238) |
| HSL | hsl(221, 67%, 80%) |
| OKLCH | oklch(80.7% 0.07 264.9) |
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 #AAC0EE | 1.82:1 | Fails | Lc -38.3 | Non-text elements, placeholder text |
| Black text on #AAC0EE | 11.48:1 | AAA | Lc 69.7 | Content text, not long reading |
| #AAC0EE text on white | 1.82:1 | Fails | Lc 34.2 | Non-text elements, placeholder text |
| #AAC0EE text on black | 11.48:1 | AAA | Lc -68.4 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F4
oklch(88.5% 0.039 266.5)
-
Step 300
300 (this color)
#AAC0EE
oklch(80.7% 0.07 264.9)
-
Step 400
400
#7E9FE7
oklch(70.7% 0.112 264.9)
-
Step 500
500
#5E85DF
oklch(63% 0.143 264.9)
-
Step 600
600
#456DCD
oklch(55.6% 0.155 264.8)
-
Step 700
700
#375BB1
oklch(49.2% 0.143 264.6)
-
Step 800
800
#2E4A90
oklch(42.6% 0.12 265.3)
-
Step 900
900
#293F73
oklch(37.8% 0.093 265)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#AAC0EE 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) | #B1C3F0 | 0.013 |
| Deuteranopia (no green cones) | #ABBDED | 0.008 |
| Tritanopia (no blue cones) | #97C9CF | 0.063 |
| Achromatopsia (no color) | #C0C0C0 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC0EE
#AAC0EE
oklch(80.7% 0.07 264.9)
- #D5BD8C
#D5BD8C
oklch(80.7% 0.07 84.8)
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 #AAC0EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.029
- Cloudy Blue #ACC2D9 ΔE 0.033
- Light Blue Grey #B7C9E2 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.039
- Light Periwinkle #C1C6FC ΔE 0.040
- Light Cornflower Blue #98C1D9 ΔE 0.040
- Light Grey Blue #9DBCD4 ΔE 0.042
Use #AAC0EE 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.