#A3C8EC
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.8% 0.065 247.9), rgb(163, 200, 236).
Aa
Black text reads best on this color (12.03:1).
About this color
#A3C8EC is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.065 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.023 away. Black text reads best on it, at 12.03:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 12.03:1 |
| White text | 1.74:1 |
Values
| HEX | #A3C8EC |
| RGB | rgb(163, 200, 236) |
| HSL | hsl(210, 66%, 78%) |
| OKLCH | oklch(81.8% 0.065 247.9) |
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 #A3C8EC | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #A3C8EC | 12.03:1 | AAA | Lc 72.1 | Content text, not long reading |
| #A3C8EC text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #A3C8EC text on black | 12.03:1 | AAA | Lc -70.9 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300 (this color)
#A3C8EC
oklch(81.8% 0.065 247.9)
-
Step 400
400
#6AA6DE
oklch(70.7% 0.104 247.9)
-
Step 500
500
#3E8FD5
oklch(63.2% 0.132 247.8)
-
Step 600
600
#1177C2
oklch(55.5% 0.144 248)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#085288
oklch(42.8% 0.111 247.9)
-
Step 900
900
#14446D
oklch(37.7% 0.087 248.4)
-
Step 950
950
#0E2840
oklch(27% 0.055 249)
#A3C8EC 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) | #BAC8EE | 0.029 |
| Deuteranopia (no green cones) | #B1C1EB | 0.024 |
| Tritanopia (no blue cones) | #8DD0D4 | 0.053 |
| Achromatopsia (no color) | #C4C4C4 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3C8EC
#A3C8EC
oklch(81.8% 0.065 247.9)
- #E0BC97
#E0BC97
oklch(81.7% 0.064 67.5)
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 #A3C8EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.023
- Baby Blue #A2CFFE ΔE 0.027
- Cloudy Blue #ACC2D9 ΔE 0.028
- Light Blue Grey #B7C9E2 ΔE 0.028
- Sky Blue #87CEEB ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.033
- Light Sky Blue #87CEFA ΔE 0.034
- Sky #82CAFC ΔE 0.039
Use #A3C8EC 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.