#A3BBFF
Closest named color: Pastel Blue (#A2BFFE). oklch(79.9% 0.101 269.1), rgb(163, 187, 255).
Aa
Black text reads best on this color (11.10:1).
About this color
#A3BBFF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.101 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.011 away. Black text reads best on it, at 11.10:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.10:1 |
| White text | 1.89:1 |
Values
| HEX | #A3BBFF |
| RGB | rgb(163, 187, 255) |
| HSL | hsl(224, 100%, 82%) |
| OKLCH | oklch(79.9% 0.101 269.1) |
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 #A3BBFF | 1.89:1 | Fails | Lc -40.1 | Non-text elements, placeholder text |
| Black text on #A3BBFF | 11.10:1 | AAA | Lc 68.0 | Content text, not long reading |
| #A3BBFF text on white | 1.89:1 | Fails | Lc 35.9 | Non-text elements, placeholder text |
| #A3BBFF text on black | 11.10:1 | AAA | Lc -66.6 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFE
oklch(93.7% 0.028 268.4)
-
Step 200
200
#CAD8FF
oklch(88.4% 0.056 269.7)
-
Step 300
300 (this color)
#A3BBFF
oklch(79.9% 0.101 269.1)
-
Step 400
400
#7A9AFF
oklch(70.7% 0.152 269)
-
Step 500
500
#5A7CFF
oklch(63% 0.198 269.1)
-
Step 600
600
#425FF3
oklch(55.6% 0.223 269.2)
-
Step 700
700
#354DD4
oklch(49.1% 0.208 269.2)
-
Step 800
800
#2B40AB
oklch(42.6% 0.172 269.1)
-
Step 900
900
#263887
oklch(37.6% 0.134 269.2)
-
Step 950
950
#16224F
oklch(27% 0.084 268.9)
#A3BBFF 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) | #A5C1FF | 0.016 |
| Deuteranopia (no green cones) | #9CB9FD | 0.011 |
| Tritanopia (no blue cones) | #87C9D3 | 0.090 |
| Achromatopsia (no color) | #BCBCBC | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBFF
#A3BBFF
oklch(79.9% 0.101 269.1)
- #D7BB6F
#D7BB6F
oklch(80% 0.101 89.8)
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 #A3BBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.011
- Carolina Blue #8AB8FE ΔE 0.032
- Light Periwinkle #C1C6FC ΔE 0.052
- Sky #82CAFC ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.054
- Lightblue #7BC8F6 ΔE 0.057
- Light Sky Blue #87CEFA ΔE 0.059
- Light Steel Blue #B0C4DE ΔE 0.062
Use #A3BBFF 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.