#AAC5FF
Closest named color: Pastel Blue (#A2BFFE). oklch(82.4% 0.087 265.2), rgb(170, 197, 255).
Aa
Black text reads best on this color (12.13:1).
About this color
#AAC5FF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.087 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.020 away. Black text reads best on it, at 12.13:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.13:1 |
| White text | 1.72:1 |
Values
| HEX | #AAC5FF |
| RGB | rgb(170, 197, 255) |
| HSL | hsl(221, 100%, 83%) |
| OKLCH | oklch(82.4% 0.087 265.2) |
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 #AAC5FF | 1.72:1 | Fails | Lc -35.2 | Non-text elements, placeholder text |
| Black text on #AAC5FF | 12.13:1 | AAA | Lc 72.6 | Content text, not long reading |
| #AAC5FF text on white | 1.72:1 | Fails | Lc 31.3 | Non-text elements, placeholder text |
| #AAC5FF text on black | 12.13:1 | AAA | Lc -71.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300 (this color)
#AAC5FF
oklch(82.4% 0.087 265.2)
-
Step 400
400
#769DF7
oklch(70.6% 0.139 265.3)
-
Step 500
500
#5482F4
oklch(63.2% 0.178 265.2)
-
Step 600
600
#3A68E3
oklch(55.6% 0.194 265.1)
-
Step 700
700
#2D55C5
oklch(49% 0.181 265.3)
-
Step 800
800
#26479F
oklch(42.8% 0.148 265.1)
-
Step 900
900
#233C7E
oklch(37.6% 0.116 265.5)
-
Step 950
950
#14244A
oklch(27% 0.074 264.7)
#AAC5FF 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) | #B2C9FF | 0.015 |
| Deuteranopia (no green cones) | #AAC1FE | 0.010 |
| Tritanopia (no blue cones) | #91D1D9 | 0.078 |
| Achromatopsia (no color) | #C5C5C5 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC5FF
#AAC5FF
oklch(82.4% 0.087 265.2)
- #DFC283
#DFC283
oklch(82.5% 0.087 85.8)
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 #AAC5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.020
- Baby Blue #A2CFFE ΔE 0.028
- Light Periwinkle #C1C6FC ΔE 0.030
- Light Sky Blue #87CEFA ΔE 0.045
- Sky #82CAFC ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.047
- Light Blue Grey #B7C9E2 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.053
Use #AAC5FF 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.