#A3C1EA
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.3% 0.067 256.3), rgb(163, 193, 234).
Aa
Black text reads best on this color (11.37:1).
About this color
#A3C1EA is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.067 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.026 away. Black text reads best on it, at 11.37:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.37:1 |
| White text | 1.84:1 |
Values
| HEX | #A3C1EA |
| RGB | rgb(163, 193, 234) |
| HSL | hsl(215, 63%, 78%) |
| OKLCH | oklch(80.3% 0.067 256.3) |
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 #A3C1EA | 1.84:1 | Fails | Lc -38.9 | Non-text elements, placeholder text |
| Black text on #A3C1EA | 11.37:1 | AAA | Lc 69.2 | Content text, not long reading |
| #A3C1EA text on white | 1.84:1 | Fails | Lc 34.7 | Non-text elements, placeholder text |
| #A3C1EA text on black | 11.37:1 | AAA | Lc -67.9 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF7
oklch(93.7% 0.019 255.5)
-
Step 200
200
#CADBF2
oklch(88.6% 0.037 256)
-
Step 300
300 (this color)
#A3C1EA
oklch(80.3% 0.067 256.3)
-
Step 400
400
#74A3E3
oklch(70.8% 0.107 256.3)
-
Step 500
500
#4E8ADB
oklch(63.1% 0.138 256.5)
-
Step 600
600
#3073C8
oklch(55.7% 0.148 256)
-
Step 700
700
#2360AD
oklch(49.2% 0.138 256.1)
-
Step 800
800
#1F4E8C
oklch(42.6% 0.115 256.6)
-
Step 900
900
#1F4270
oklch(37.8% 0.089 256.1)
-
Step 950
950
#132742
oklch(27.1% 0.057 256.4)
#A3C1EA 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) | #B3C3EC | 0.022 |
| Deuteranopia (no green cones) | #ABBCE9 | 0.015 |
| Tritanopia (no blue cones) | #8ECACE | 0.060 |
| Achromatopsia (no color) | #BFBFBF | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3C1EA
#A3C1EA
oklch(80.3% 0.067 256.3)
- #D8B98E
#D8B98E
oklch(80.2% 0.067 75.6)
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 #A3C1EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.026
- Cloudy Blue #ACC2D9 ΔE 0.027
- Light Cornflower Blue #98C1D9 ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.031
- Light Grey Blue #9DBCD4 ΔE 0.033
- Light Blue Grey #B7C9E2 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.040
- Sky #82CAFC ΔE 0.042
Use #A3C1EA 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.