#A3BBF0
Closest named color: Pastel Blue (#A2BFFE). oklch(79.3% 0.08 265.7), rgb(163, 187, 240).
Aa
Black text reads best on this color (10.92:1).
About this color
#A3BBF0 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.080 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.020 away. Black text reads best on it, at 10.92:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.92:1 |
| White text | 1.92:1 |
Values
| HEX | #A3BBF0 |
| RGB | rgb(163, 187, 240) |
| HSL | hsl(221, 72%, 79%) |
| OKLCH | oklch(79.3% 0.08 265.7) |
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 #A3BBF0 | 1.92:1 | Fails | Lc -41.1 | Non-text elements, placeholder text |
| Black text on #A3BBF0 | 10.92:1 | AAA | Lc 67.2 | Content text, not long reading |
| #A3BBF0 text on white | 1.92:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #A3BBF0 text on black | 10.92:1 | 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
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F8
oklch(88.5% 0.045 266.2)
-
Step 300
300 (this color)
#A3BBF0
oklch(79.3% 0.08 265.7)
-
Step 400
400
#7A9EF1
oklch(70.8% 0.129 265.5)
-
Step 500
500
#5983EC
oklch(63.1% 0.164 265.5)
-
Step 600
600
#406ADA
oklch(55.6% 0.178 265.5)
-
Step 700
700
#3357BD
oklch(49% 0.166 265.8)
-
Step 800
800
#2A4899
oklch(42.7% 0.137 265.6)
-
Step 900
900
#263D7A
oklch(37.7% 0.108 265.9)
-
Step 950
950
#162447
oklch(26.9% 0.068 265.6)
#A3BBF0 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) | #AABFF2 | 0.015 |
| Deuteranopia (no green cones) | #A2B8EF | 0.008 |
| Tritanopia (no blue cones) | #8DC6CD | 0.072 |
| Achromatopsia (no color) | #BBBBBB | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBF0
#A3BBF0
oklch(79.3% 0.08 265.7)
- #D3B87F
#D3B87F
oklch(79.3% 0.081 85.3)
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 #A3BBF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.020
- Carolina Blue #8AB8FE ΔE 0.038
- Light Grey Blue #9DBCD4 ΔE 0.043
- Light Cornflower Blue #98C1D9 ΔE 0.044
- Light Steel Blue #B0C4DE ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.044
- Sky #82CAFC ΔE 0.048
- Lightblue #7BC8F6 ΔE 0.051
Use #A3BBF0 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.