#AEC3E5
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.3% 0.053 260), rgb(174, 195, 229).
Aa
Black text reads best on this color (11.73:1).
About this color
#AEC3E5 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.053 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.011 away. Black text reads best on it, at 11.73:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.73:1 |
| White text | 1.78:1 |
Values
| HEX | #AEC3E5 |
| RGB | rgb(174, 195, 229) |
| HSL | hsl(217, 51%, 79%) |
| OKLCH | oklch(81.3% 0.053 260) |
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 #AEC3E5 | 1.78:1 | Fails | Lc -37.1 | Non-text elements, placeholder text |
| Black text on #AEC3E5 | 11.73:1 | AAA | Lc 70.8 | Content text, not long reading |
| #AEC3E5 text on white | 1.78:1 | Fails | Lc 33.1 | Non-text elements, placeholder text |
| #AEC3E5 text on black | 11.73:1 | AAA | Lc -69.6 | 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
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300 (this color)
#AEC3E5
oklch(81.3% 0.053 260)
-
Step 400
400
#81A2D6
oklch(70.7% 0.085 259.3)
-
Step 500
500
#628ACB
oklch(63.2% 0.108 259.8)
-
Step 600
600
#4872B8
oklch(55.5% 0.119 260.1)
-
Step 700
700
#3A609F
oklch(49.2% 0.11 260)
-
Step 800
800
#304E81
oklch(42.6% 0.092 260.4)
-
Step 900
900
#2B4167
oklch(37.6% 0.071 260.8)
-
Step 950
950
#19263C
oklch(26.8% 0.045 260.5)
#AEC3E5 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) | #B8C5E7 | 0.015 |
| Deuteranopia (no green cones) | #B2BFE4 | 0.011 |
| Tritanopia (no blue cones) | #A0CACE | 0.047 |
| Achromatopsia (no color) | #C2C2C2 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC3E5
#AEC3E5
oklch(81.3% 0.053 260)
- #D4BF9B
#D4BF9B
oklch(81.3% 0.054 81.1)
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 #AEC3E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.011
- Cloudy Blue #ACC2D9 ΔE 0.017
- Light Blue Grey #B7C9E2 ΔE 0.022
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Light Grey Blue #9DBCD4 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.040
- Light Periwinkle #C1C6FC ΔE 0.043
- Pastel Blue #A2BFFE ΔE 0.043
Use #AEC3E5 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.