#AEC4E1
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.3% 0.048 255.4), rgb(174, 196, 225).
Aa
Black text reads best on this color (11.78:1).
About this color
#AEC4E1 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.048 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.005 away. Black text reads best on it, at 11.78:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.78:1 |
| White text | 1.78:1 |
Values
| HEX | #AEC4E1 |
| RGB | rgb(174, 196, 225) |
| HSL | hsl(214, 46%, 78%) |
| OKLCH | oklch(81.3% 0.048 255.4) |
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 #AEC4E1 | 1.78:1 | Fails | Lc -36.9 | Non-text elements, placeholder text |
| Black text on #AEC4E1 | 11.78:1 | AAA | Lc 71.0 | Content text, not long reading |
| #AEC4E1 text on white | 1.78:1 | Fails | Lc 32.9 | Non-text elements, placeholder text |
| #AEC4E1 text on black | 11.78:1 | AAA | Lc -69.8 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CEDAEB
oklch(88.4% 0.027 257)
-
Step 300
300 (this color)
#AEC4E1
oklch(81.3% 0.048 255.4)
-
Step 400
400
#81A3D0
oklch(70.7% 0.076 255.6)
-
Step 500
500
#618CC4
oklch(63.2% 0.097 255.4)
-
Step 600
600
#4775B0
oklch(55.6% 0.105 255.3)
-
Step 700
700
#386297
oklch(49.1% 0.098 255.1)
-
Step 800
800
#2F507B
oklch(42.7% 0.082 255.6)
-
Step 900
900
#2A4363
oklch(37.8% 0.063 255.1)
-
Step 950
950
#19273A
oklch(27% 0.041 256.3)
#AEC4E1 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) | #BAC5E2 | 0.016 |
| Deuteranopia (no green cones) | #B4C0E0 | 0.012 |
| Tritanopia (no blue cones) | #A1CACD | 0.041 |
| Achromatopsia (no color) | #C2C2C2 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4E1
#AEC4E1
oklch(81.3% 0.048 255.4)
- #D4BEA0
#D4BEA0
oklch(81.2% 0.048 75.5)
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 #AEC4E1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.005
- Cloudy Blue #ACC2D9 ΔE 0.012
- Light Blue Grey #B7C9E2 ΔE 0.019
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Light Grey Blue #9DBCD4 ΔE 0.035
- Baby Blue #A2CFFE ΔE 0.043
- Sky Blue #87CEEB ΔE 0.047
- Light Periwinkle #C1C6FC ΔE 0.047
Use #AEC4E1 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.