#AAC7DC
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.5% 0.043 239.5), rgb(170, 199, 220).
Aa
Black text reads best on this color (11.91:1).
About this color
#AAC7DC is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.043 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.012 away. Black text reads best on it, at 11.91:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.91:1 |
| White text | 1.76:1 |
Values
| HEX | #AAC7DC |
| RGB | rgb(170, 199, 220) |
| HSL | hsl(205, 42%, 76%) |
| OKLCH | oklch(81.5% 0.043 239.5) |
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 #AAC7DC | 1.76:1 | Fails | Lc -36.3 | Non-text elements, placeholder text |
| Black text on #AAC7DC | 11.91:1 | AAA | Lc 71.5 | Content text, not long reading |
| #AAC7DC text on white | 1.76:1 | Fails | Lc 32.3 | Non-text elements, placeholder text |
| #AAC7DC text on black | 11.91:1 | AAA | Lc -70.4 | 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
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300 (this color)
#AAC7DC
oklch(81.5% 0.043 239.5)
-
Step 400
400
#79A7C8
oklch(70.8% 0.069 240.2)
-
Step 500
500
#5491B9
oklch(63.2% 0.088 239)
-
Step 600
600
#367AA5
oklch(55.5% 0.096 239.5)
-
Step 700
700
#28678E
oklch(49.1% 0.089 239.5)
-
Step 800
800
#235473
oklch(42.7% 0.074 239.5)
-
Step 900
900
#22465D
oklch(37.8% 0.057 238.8)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#AAC7DC 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) | #BEC6DD | 0.026 |
| Deuteranopia (no green cones) | #B7C1DC | 0.022 |
| Tritanopia (no blue cones) | #9CCCCE | 0.033 |
| Achromatopsia (no color) | #C3C3C3 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC7DC
#AAC7DC
oklch(81.5% 0.043 239.5)
- #D8BDA7
#D8BDA7
oklch(81.6% 0.043 61.3)
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 #AAC7DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.012
- Cloudy Blue #ACC2D9 ΔE 0.013
- Light Blue Grey #B7C9E2 ΔE 0.020
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Light Grey Blue #9DBCD4 ΔE 0.035
- Sky Blue #87CEEB ΔE 0.041
- Silver #C0C0C0 ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.045
Use #AAC7DC 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.