#AEC4E3
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.4% 0.05 257), rgb(174, 196, 227).
Aa
Black text reads best on this color (11.80:1).
About this color
#AEC4E3 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.050 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.007 away. Black text reads best on it, at 11.80:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.80:1 |
| White text | 1.77:1 |
Values
| HEX | #AEC4E3 |
| RGB | rgb(174, 196, 227) |
| HSL | hsl(215, 49%, 79%) |
| OKLCH | oklch(81.4% 0.05 257) |
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 #AEC4E3 | 1.77:1 | Fails | Lc -36.8 | Non-text elements, placeholder text |
| Black text on #AEC4E3 | 11.80:1 | AAA | Lc 71.1 | Content text, not long reading |
| #AEC4E3 text on white | 1.77:1 | Fails | Lc 32.8 | Non-text elements, placeholder text |
| #AEC4E3 text on black | 11.80:1 | AAA | Lc -69.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300 (this color)
#AEC4E3
oklch(81.4% 0.05 257)
-
Step 400
400
#81A3D3
oklch(70.8% 0.08 257)
-
Step 500
500
#608BC7
oklch(63.1% 0.103 256.9)
-
Step 600
600
#4774B3
oklch(55.6% 0.111 257)
-
Step 700
700
#38619A
oklch(49% 0.103 256.9)
-
Step 800
800
#2F4F7D
oklch(42.6% 0.086 257.5)
-
Step 900
900
#2A4265
oklch(37.7% 0.067 257.7)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#AEC4E3 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) | #BAC5E5 | 0.016 |
| Deuteranopia (no green cones) | #B4C0E2 | 0.012 |
| Tritanopia (no blue cones) | #A0CBCE | 0.045 |
| Achromatopsia (no color) | #C2C2C2 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC4E3
#AEC4E3
oklch(81.4% 0.05 257)
- #D5BF9F
#D5BF9F
oklch(81.5% 0.05 77.2)
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 #AEC4E3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.007
- Cloudy Blue #ACC2D9 ΔE 0.014
- Light Blue Grey #B7C9E2 ΔE 0.019
- Light Cornflower Blue #98C1D9 ΔE 0.033
- Light Grey Blue #9DBCD4 ΔE 0.036
- Baby Blue #A2CFFE ΔE 0.041
- Light Periwinkle #C1C6FC ΔE 0.045
- Pastel Blue #A2BFFE ΔE 0.047
Use #AEC4E3 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.