#A1BBF3
Closest named color: Pastel Blue (#A2BFFE). oklch(79.3% 0.085 265.2), rgb(161, 187, 243).
Aa
Black text reads best on this color (10.91:1).
About this color
#A1BBF3 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.085 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.017 away. Black text reads best on it, at 10.91:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.91:1 |
| White text | 1.92:1 |
Values
| HEX | #A1BBF3 |
| RGB | rgb(161, 187, 243) |
| HSL | hsl(221, 77%, 79%) |
| OKLCH | oklch(79.3% 0.085 265.2) |
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 #A1BBF3 | 1.92:1 | Fails | Lc -41.1 | Non-text elements, placeholder text |
| Black text on #A1BBF3 | 10.91:1 | AAA | Lc 67.1 | Content text, not long reading |
| #A1BBF3 text on white | 1.92:1 | Fails | Lc 36.8 | Non-text elements, placeholder text |
| #A1BBF3 text on black | 10.91:1 | AAA | Lc -65.7 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CAD9F9
oklch(88.4% 0.047 265.5)
-
Step 300
300 (this color)
#A1BBF3
oklch(79.3% 0.085 265.2)
-
Step 400
400
#779DF5
oklch(70.6% 0.136 265.4)
-
Step 500
500
#5582F1
oklch(63% 0.174 265.2)
-
Step 600
600
#3C69E0
oklch(55.7% 0.188 265.1)
-
Step 700
700
#2E56C3
oklch(49.1% 0.177 265.1)
-
Step 800
800
#27479D
oklch(42.6% 0.145 265.3)
-
Step 900
900
#233D7D
oklch(37.7% 0.113 264.9)
-
Step 950
950
#152449
oklch(27% 0.072 265.3)
#A1BBF3 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) | #A8BFF6 | 0.015 |
| Deuteranopia (no green cones) | #A1B8F2 | 0.008 |
| Tritanopia (no blue cones) | #89C6CE | 0.076 |
| Achromatopsia (no color) | #BBBBBB | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1BBF3
#A1BBF3
oklch(79.3% 0.085 265.2)
- #D4B87B
#D4B87B
oklch(79.3% 0.085 85.9)
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 #A1BBF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.017
- Carolina Blue #8AB8FE ΔE 0.033
- Sky #82CAFC ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.049
- Lightblue #7BC8F6 ΔE 0.049
Use #A1BBF3 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.