#AEC5FF
Closest named color: Pastel Blue (#A2BFFE). oklch(82.7% 0.086 267.7), rgb(174, 197, 255).
Aa
Black text reads best on this color (12.23:1).
About this color
#AEC5FF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.086 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.023 away. Black text reads best on it, at 12.23:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.23:1 |
| White text | 1.71:1 |
Values
| HEX | #AEC5FF |
| RGB | rgb(174, 197, 255) |
| HSL | hsl(223, 100%, 84%) |
| OKLCH | oklch(82.7% 0.086 267.7) |
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 #AEC5FF | 1.71:1 | Fails | Lc -34.7 | Non-text elements, placeholder text |
| Black text on #AEC5FF | 12.23:1 | AAA | Lc 73.0 | Content text, not long reading |
| #AEC5FF text on white | 1.71:1 | Fails | Lc 30.9 | Non-text elements, placeholder text |
| #AEC5FF text on black | 12.23:1 | AAA | Lc -71.9 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9FA
oklch(88.5% 0.048 267.2)
-
Step 300
300 (this color)
#AEC5FF
oklch(82.7% 0.086 267.7)
-
Step 400
400
#7B9CF6
oklch(70.7% 0.137 267.6)
-
Step 500
500
#5C80F2
oklch(63% 0.175 267.9)
-
Step 600
600
#4466E1
oklch(55.5% 0.191 267.9)
-
Step 700
700
#3654C3
oklch(49% 0.177 267.8)
-
Step 800
800
#2D469E
oklch(42.8% 0.146 267.8)
-
Step 900
900
#273C7D
oklch(37.7% 0.113 267.3)
-
Step 950
950
#172349
oklch(26.8% 0.072 268.1)
#AEC5FF 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 | 0.012 |
| Deuteranopia (no green cones) | #ABC2FE | 0.009 |
| Tritanopia (no blue cones) | #97D0D9 | 0.076 |
| Achromatopsia (no color) | #C5C5C5 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC5FF
#AEC5FF
oklch(82.7% 0.086 267.7)
- #DEC485
#DEC485
oklch(82.8% 0.086 88)
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 #AEC5FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.023
- Light Periwinkle #C1C6FC ΔE 0.025
- Baby Blue #A2CFFE ΔE 0.029
- Light Steel Blue #B0C4DE ΔE 0.047
- Light Blue Grey #B7C9E2 ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.049
- Sky #82CAFC ΔE 0.050
- Cloudy Blue #ACC2D9 ΔE 0.054
Use #AEC5FF 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.