#AEC7DD
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.8% 0.041 244.9), rgb(174, 199, 221).
Aa
Black text reads best on this color (12.01:1).
About this color
#AEC7DD is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.041 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.009 away. Black text reads best on it, at 12.01:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 12.01:1 |
| White text | 1.74:1 |
Values
| HEX | #AEC7DD |
| RGB | rgb(174, 199, 221) |
| HSL | hsl(208, 41%, 77%) |
| OKLCH | oklch(81.8% 0.041 244.9) |
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 #AEC7DD | 1.74:1 | Fails | Lc -35.8 | Non-text elements, placeholder text |
| Black text on #AEC7DD | 12.01:1 | AAA | Lc 72.0 | Content text, not long reading |
| #AEC7DD text on white | 1.74:1 | Fails | Lc 31.9 | Non-text elements, placeholder text |
| #AEC7DD text on black | 12.01:1 | AAA | Lc -70.8 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300 (this color)
#AEC7DD
oklch(81.8% 0.041 244.9)
-
Step 400
400
#7EA5C7
oklch(70.6% 0.066 245.2)
-
Step 500
500
#5C8FB9
oklch(63.1% 0.084 244.5)
-
Step 600
600
#4178A5
oklch(55.5% 0.091 245.2)
-
Step 700
700
#32658E
oklch(49% 0.086 245.1)
-
Step 800
800
#2B5373
oklch(42.8% 0.07 244.6)
-
Step 900
900
#27455D
oklch(37.8% 0.055 244.1)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#AEC7DD 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) | #BEC7DE | 0.021 |
| Deuteranopia (no green cones) | #B8C2DD | 0.018 |
| Tritanopia (no blue cones) | #A1CCCE | 0.033 |
| Achromatopsia (no color) | #C4C4C4 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AEC7DD
#AEC7DD
oklch(81.8% 0.041 244.9)
- #D7BFA8
#D7BFA8
oklch(81.9% 0.042 66)
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 #AEC7DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.009
- Cloudy Blue #ACC2D9 ΔE 0.014
- Light Blue Grey #B7C9E2 ΔE 0.015
- Light Cornflower Blue #98C1D9 ΔE 0.033
- Light Grey Blue #9DBCD4 ΔE 0.039
- Silver #C0C0C0 ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.044
- Sky Blue #87CEEB ΔE 0.045
Use #AEC7DD 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.