#AEC5DD
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.4% 0.042 249.5), rgb(174, 197, 221).
Aa
Black text reads best on this color (11.83:1).
About this color
#AEC5DD is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.042 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.004 away. Black text reads best on it, at 11.83:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.83:1 |
| White text | 1.77:1 |
Values
| HEX | #AEC5DD |
| RGB | rgb(174, 197, 221) |
| HSL | hsl(211, 41%, 77%) |
| OKLCH | oklch(81.4% 0.042 249.5) |
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 #AEC5DD | 1.77:1 | Fails | Lc -36.7 | Non-text elements, placeholder text |
| Black text on #AEC5DD | 11.83:1 | AAA | Lc 71.2 | Content text, not long reading |
| #AEC5DD text on white | 1.77:1 | Fails | Lc 32.7 | Non-text elements, placeholder text |
| #AEC5DD text on black | 11.83:1 | AAA | Lc -70.0 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDBE8
oklch(88.6% 0.023 248.1)
-
Step 300
300 (this color)
#AEC5DD
oklch(81.4% 0.042 249.5)
-
Step 400
400
#80A4CA
oklch(70.6% 0.069 250.2)
-
Step 500
500
#608EBC
oklch(63.2% 0.086 249.3)
-
Step 600
600
#4577A8
oklch(55.6% 0.094 249.4)
-
Step 700
700
#376490
oklch(49.1% 0.087 249.5)
-
Step 800
800
#2E5275
oklch(42.8% 0.072 249.2)
-
Step 900
900
#29445E
oklch(37.7% 0.056 248.6)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#AEC5DD 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) | #BCC5DE | 0.018 |
| Deuteranopia (no green cones) | #B7C0DD | 0.017 |
| Tritanopia (no blue cones) | #A2CACD | 0.034 |
| Achromatopsia (no color) | #C2C2C2 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC5DD
#AEC5DD
oklch(81.4% 0.042 249.5)
- #D5BEA5
#D5BEA5
oklch(81.4% 0.043 69.5)
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 #AEC5DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.004
- Cloudy Blue #ACC2D9 ΔE 0.009
- Light Blue Grey #B7C9E2 ΔE 0.017
- Light Cornflower Blue #98C1D9 ΔE 0.031
- Light Grey Blue #9DBCD4 ΔE 0.035
- Silver #C0C0C0 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.046
- Baby Blue #A2CFFE ΔE 0.047
Use #AEC5DD 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.