#AEC4FC
Closest named color: Pastel Blue (#A2BFFE). oklch(82.4% 0.083 267.9), rgb(174, 196, 252).
Aa
Black text reads best on this color (12.10:1).
About this color
#AEC4FC is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.083 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.022 away. Black text reads best on it, at 12.10:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 12.10:1 |
| White text | 1.73:1 |
Values
| HEX | #AEC4FC |
| RGB | rgb(174, 196, 252) |
| HSL | hsl(223, 93%, 84%) |
| OKLCH | oklch(82.4% 0.083 267.9) |
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 #AEC4FC | 1.73:1 | Fails | Lc -35.3 | Non-text elements, placeholder text |
| Black text on #AEC4FC | 12.10:1 | AAA | Lc 72.4 | Content text, not long reading |
| #AEC4FC text on white | 1.73:1 | Fails | Lc 31.5 | Non-text elements, placeholder text |
| #AEC4FC text on black | 12.10:1 | AAA | Lc -71.3 | 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
#CCD9F9
oklch(88.6% 0.046 267.9)
-
Step 300
300 (this color)
#AEC4FC
oklch(82.4% 0.083 267.9)
-
Step 400
400
#7D9CF3
oklch(70.6% 0.132 268.1)
-
Step 500
500
#5E81EF
oklch(63.2% 0.169 268)
-
Step 600
600
#4667DD
oklch(55.5% 0.184 268.1)
-
Step 700
700
#3855C0
oklch(49.1% 0.171 268)
-
Step 800
800
#2E469B
oklch(42.6% 0.142 268)
-
Step 900
900
#283C7B
oklch(37.6% 0.11 267.6)
-
Step 950
950
#182448
oklch(27.1% 0.069 267.8)
#AEC4FC 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) | #B2C8FF | 0.012 |
| Deuteranopia (no green cones) | #ABC1FB | 0.009 |
| Tritanopia (no blue cones) | #98CFD7 | 0.074 |
| Achromatopsia (no color) | #C4C4C4 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4FC
#AEC4FC
oklch(82.4% 0.083 267.9)
- #DCC387
#DCC387
oklch(82.4% 0.083 87.9)
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 #AEC4FC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.022
- Light Periwinkle #C1C6FC ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.030
- Light Steel Blue #B0C4DE ΔE 0.043
- Light Blue Grey #B7C9E2 ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.049
- Sky #82CAFC ΔE 0.050
- Cloudy Blue #ACC2D9 ΔE 0.050
Use #AEC4FC 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.