#A3CAEA
Closest named color: Light Steel Blue (#B0C4DE). oklch(82.2% 0.061 243.3), rgb(163, 202, 234).
Aa
Black text reads best on this color (12.19:1).
About this color
#A3CAEA is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.061 and its hue 243°. 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 12.19:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 12.19:1 |
| White text | 1.72:1 |
Values
| HEX | #A3CAEA |
| RGB | rgb(163, 202, 234) |
| HSL | hsl(207, 63%, 78%) |
| OKLCH | oklch(82.2% 0.061 243.3) |
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 #A3CAEA | 1.72:1 | Fails | Lc -34.9 | Non-text elements, placeholder text |
| Black text on #A3CAEA | 12.19:1 | AAA | Lc 72.8 | Content text, not long reading |
| #A3CAEA text on white | 1.72:1 | Fails | Lc 31.0 | Non-text elements, placeholder text |
| #A3CAEA text on black | 12.19:1 | AAA | Lc -71.7 | 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
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300 (this color)
#A3CAEA
oklch(82.2% 0.061 243.3)
-
Step 400
400
#68A8D9
oklch(70.8% 0.098 242.8)
-
Step 500
500
#3891CF
oklch(63.2% 0.125 243)
-
Step 600
600
#007ABC
oklch(55.7% 0.136 243.3)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005483
oklch(42.8% 0.104 243)
-
Step 900
900
#0F4569
oklch(37.6% 0.082 243.4)
-
Step 950
950
#0C293E
oklch(27.1% 0.052 243.5)
#A3CAEA 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) | #BDCAEC | 0.033 |
| Deuteranopia (no green cones) | #B4C2E9 | 0.028 |
| Tritanopia (no blue cones) | #8DD2D4 | 0.051 |
| Achromatopsia (no color) | #C5C5C5 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3CAEA
#A3CAEA
oklch(82.2% 0.061 243.3)
- #E2BD9C
#E2BD9C
oklch(82.2% 0.061 63.5)
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 #A3CAEA, 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
- Light Blue Grey #B7C9E2 ΔE 0.025
- Cloudy Blue #ACC2D9 ΔE 0.027
- Baby Blue #A2CFFE ΔE 0.028
- Sky Blue #87CEEB ΔE 0.031
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Light Sky Blue #87CEFA ΔE 0.034
- Sky #82CAFC ΔE 0.042
Use #A3CAEA 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.