#A3BBF9
Closest named color: Pastel Blue (#A2BFFE). oklch(79.7% 0.092 267.9), rgb(163, 187, 249).
Aa
Black text reads best on this color (11.03:1).
About this color
#A3BBF9 is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.092 and its hue 268°. 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 11.03:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.03:1 |
| White text | 1.90:1 |
Values
| HEX | #A3BBF9 |
| RGB | rgb(163, 187, 249) |
| HSL | hsl(223, 88%, 81%) |
| OKLCH | oklch(79.7% 0.092 267.9) |
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 #A3BBF9 | 1.90:1 | Fails | Lc -40.5 | Non-text elements, placeholder text |
| Black text on #A3BBF9 | 11.03:1 | AAA | Lc 67.7 | Content text, not long reading |
| #A3BBF9 text on white | 1.90:1 | Fails | Lc 36.2 | Non-text elements, placeholder text |
| #A3BBF9 text on black | 11.03:1 | AAA | Lc -66.3 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FC
oklch(88.5% 0.051 267)
-
Step 300
300 (this color)
#A3BBF9
oklch(79.7% 0.092 267.9)
-
Step 400
400
#799BFC
oklch(70.7% 0.147 267.9)
-
Step 500
500
#597EFA
oklch(63% 0.189 268.1)
-
Step 600
600
#4164E9
oklch(55.6% 0.205 267.9)
-
Step 700
700
#3452CB
oklch(49.2% 0.19 267.9)
-
Step 800
800
#2B44A4
oklch(42.8% 0.158 267.9)
-
Step 900
900
#263A82
oklch(37.6% 0.124 268.2)
-
Step 950
950
#16234C
oklch(27% 0.078 267.7)
#A3BBF9 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) | #A7C0FC | 0.014 |
| Deuteranopia (no green cones) | #9FB8F8 | 0.010 |
| Tritanopia (no blue cones) | #8AC7D0 | 0.083 |
| Achromatopsia (no color) | #BCBCBC | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBF9
#A3BBF9
oklch(79.7% 0.092 267.9)
- #D6BA76
#D6BA76
oklch(79.8% 0.093 87.9)
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 #A3BBF9, 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
- Sky #82CAFC ΔE 0.049
- Light Periwinkle #C1C6FC ΔE 0.051
- Baby Blue #A2CFFE ΔE 0.052
- Lightblue #7BC8F6 ΔE 0.054
- Light Steel Blue #B0C4DE ΔE 0.054
- Light Sky Blue #87CEFA ΔE 0.056
Use #A3BBF9 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.