#A3B5EA
Closest named color: Pastel Blue (#A2BFFE). oklch(77.8% 0.079 270), rgb(163, 181, 234).
Aa
Black text reads best on this color (10.35:1).
About this color
#A3B5EA is a medium-light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.079 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.033 away. Black text reads best on it, at 10.35:1.
| Hue family | Blues |
| Lightness | medium-light (78%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.35:1 |
| White text | 2.02:1 |
Values
| HEX | #A3B5EA |
| RGB | rgb(163, 181, 234) |
| HSL | hsl(225, 63%, 78%) |
| OKLCH | oklch(77.8% 0.079 270) |
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 #A3B5EA | 2.02:1 | Fails | Lc -43.9 | Non-text elements, placeholder text |
| Black text on #A3B5EA | 10.35:1 | AAA | Lc 64.5 | Content text, not long reading |
| #A3B5EA text on white | 2.02:1 | Fails | Lc 39.4 | Non-text elements, placeholder text |
| #A3B5EA text on black | 10.35:1 | AAA | Lc -62.9 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4EAFA
oklch(93.7% 0.023 269.4)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300 (this color)
#A3B5EA
oklch(77.8% 0.079 270)
-
Step 400
400
#829CEF
oklch(70.7% 0.125 269.8)
-
Step 500
500
#6481EA
oklch(63.2% 0.161 269.7)
-
Step 600
600
#4D67D8
oklch(55.5% 0.175 270.1)
-
Step 700
700
#3E55BB
oklch(49% 0.162 269.9)
-
Step 800
800
#334697
oklch(42.6% 0.134 269.9)
-
Step 900
900
#2C3C79
oklch(37.7% 0.105 269.7)
-
Step 950
950
#1A2447
oklch(27.1% 0.066 269.6)
#A3B5EA 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) | #A4B9EC | 0.011 |
| Deuteranopia (no green cones) | #9FB3E9 | 0.008 |
| Tritanopia (no blue cones) | #90BFC7 | 0.070 |
| Achromatopsia (no color) | #B6B6B6 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B5EA
#A3B5EA
oklch(77.8% 0.079 270)
- #CAB57C
#CAB57C
oklch(77.8% 0.079 90.1)
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 #A3B5EA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.033
- Carolina Blue #8AB8FE ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.043
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.051
- Light Steel Blue #B0C4DE ΔE 0.053
- Lightblue #7BC8F6 ΔE 0.060
- Sky #82CAFC ΔE 0.061
Use #A3B5EA 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.