#AEC5FE
Closest named color: Pastel Blue (#A2BFFE). oklch(82.6% 0.084 267.5), rgb(174, 197, 254).
Aa
Black text reads best on this color (12.21:1).
About this color
#AEC5FE is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.084 and its hue 267°. 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 12.21:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.21:1 |
| White text | 1.71:1 |
Values
| HEX | #AEC5FE |
| RGB | rgb(174, 197, 254) |
| HSL | hsl(223, 98%, 84%) |
| OKLCH | oklch(82.6% 0.084 267.5) |
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 #AEC5FE | 1.71:1 | Fails | Lc -34.8 | Non-text elements, placeholder text |
| Black text on #AEC5FE | 12.21:1 | AAA | Lc 72.9 | Content text, not long reading |
| #AEC5FE text on white | 1.71:1 | Fails | Lc 30.9 | Non-text elements, placeholder text |
| #AEC5FE text on black | 12.21:1 | AAA | Lc -71.8 | 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
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300 (this color)
#AEC5FE
oklch(82.6% 0.084 267.5)
-
Step 400
400
#7B9CF5
oklch(70.6% 0.136 267.5)
-
Step 500
500
#5C81F1
oklch(63.2% 0.173 267.5)
-
Step 600
600
#4467DF
oklch(55.6% 0.187 267.6)
-
Step 700
700
#3655C2
oklch(49.2% 0.174 267.5)
-
Step 800
800
#2D469D
oklch(42.7% 0.145 267.7)
-
Step 900
900
#273C7D
oklch(37.7% 0.113 267.3)
-
Step 950
950
#172449
oklch(27.1% 0.071 267.1)
#AEC5FE 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) | #B3C9FF | 0.013 |
| Deuteranopia (no green cones) | #ACC2FD | 0.008 |
| Tritanopia (no blue cones) | #97D0D8 | 0.076 |
| Achromatopsia (no color) | #C5C5C5 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC5FE
#AEC5FE
oklch(82.6% 0.084 267.5)
- #DDC386
#DDC386
oklch(82.5% 0.084 87.4)
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 #AEC5FE, 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 0.045
- Light Blue Grey #B7C9E2 ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.049
- Sky #82CAFC ΔE 0.050
- Cloudy Blue #ACC2D9 ΔE 0.052
Use #AEC5FE 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.