#A3D9FF
Closest named color: Baby Blue (#A2CFFE). oklch(86.1% 0.077 239.5), rgb(163, 217, 255).
Aa
Black text reads best on this color (13.92:1).
About this color
#A3D9FF is a light, moderately saturated blue. In OKLCH its lightness is 86%, its chroma 0.077 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.027 away. Black text reads best on it, at 13.92:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.92:1 |
| White text | 1.50:1 |
Values
| HEX | #A3D9FF |
| RGB | rgb(163, 217, 255) |
| HSL | hsl(205, 100%, 82%) |
| OKLCH | oklch(86.1% 0.077 239.5) |
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 #A3D9FF | 1.50:1 | Fails | Lc -26.8 | Dividers and decoration only |
| Black text on #A3D9FF | 13.92:1 | AAA | Lc 80.1 | Fine for body text |
| #A3D9FF text on white | 1.50:1 | Fails | Lc 23.7 | Dividers and decoration only |
| #A3D9FF text on black | 13.92:1 | AAA | Lc -79.5 | Fine for body text |
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 200.
-
Step 50
50
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#D9EDFB
oklch(93.6% 0.028 238.2)
-
Step 200
200 (this color)
#A3D9FF
oklch(86.1% 0.077 239.5)
-
Step 300
300
#83CAFA
oklch(81% 0.099 239.2)
-
Step 400
400
#0EABF8
oklch(70.6% 0.159 239.7)
-
Step 500
500
#0093D6
oklch(63.1% 0.143 239.3)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006899
oklch(49.2% 0.111 239.3)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#A3D9FF 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) | #C9D8FF | 0.045 |
| Deuteranopia (no green cones) | #BCCEFE | 0.038 |
| Tritanopia (no blue cones) | #83E3E5 | 0.062 |
| Achromatopsia (no color) | #D2D2D2 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3D9FF
#A3D9FF
oklch(86.1% 0.077 239.5)
- #F8C69F
#F8C69F
oklch(86.1% 0.077 59.5)
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 #A3D9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.027
- Light Blue #ADD8E6 ΔE 0.035
- Light Sky Blue #87CEFA ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.050
- Celeste #A8DADC ΔE 0.051
- Light Blue Grey #B7C9E2 ΔE 0.051
- Sky #82CAFC ΔE 0.056
Use #A3D9FF 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.