#AEC4FF
Closest named color: Pastel Blue (#A2BFFE). oklch(82.5% 0.087 268.6), rgb(174, 196, 255).
Aa
Black text reads best on this color (12.13:1).
About this color
#AEC4FF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.087 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.021 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 | #AEC4FF |
| RGB | rgb(174, 196, 255) |
| HSL | hsl(224, 100%, 84%) |
| OKLCH | oklch(82.5% 0.087 268.6) |
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 #AEC4FF | 1.72:1 | Fails | Lc -35.2 | Non-text elements, placeholder text |
| Black text on #AEC4FF | 12.13:1 | AAA | Lc 72.6 | Content text, not long reading |
| #AEC4FF text on white | 1.72:1 | Fails | Lc 31.3 | Non-text elements, placeholder text |
| #AEC4FF 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
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9FA
oklch(88.6% 0.048 268.4)
-
Step 300
300 (this color)
#AEC4FF
oklch(82.5% 0.087 268.6)
-
Step 400
400
#7D9BF7
oklch(70.6% 0.139 269)
-
Step 500
500
#5D7FF4
oklch(63% 0.179 268.7)
-
Step 600
600
#4665E2
oklch(55.5% 0.193 268.8)
-
Step 700
700
#3853C5
oklch(49.1% 0.18 268.7)
-
Step 800
800
#2E459F
oklch(42.7% 0.149 268.5)
-
Step 900
900
#283B7E
oklch(37.6% 0.116 268.4)
-
Step 950
950
#18234A
oklch(27% 0.074 269.2)
#AEC4FF 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) | #B1C9FF | 0.014 |
| Deuteranopia (no green cones) | #AAC2FE | 0.008 |
| Tritanopia (no blue cones) | #97D0D8 | 0.079 |
| Achromatopsia (no color) | #C5C5C5 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4FF
#AEC4FF
oklch(82.5% 0.087 268.6)
- #DDC383
#DDC383
oklch(82.5% 0.087 88.3)
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 #AEC4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.021
- Light Periwinkle #C1C6FC ΔE 0.026
- Baby Blue #A2CFFE ΔE 0.031
- Light Steel Blue #B0C4DE ΔE 0.048
- Light Blue Grey #B7C9E2 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.050
- Sky #82CAFC ΔE 0.051
- Cloudy Blue #ACC2D9 ΔE 0.054
Use #AEC4FF 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.