#A3D3FA
Closest named color: Baby Blue (#A2CFFE). oklch(84.7% 0.074 243.3), rgb(163, 211, 250).
Aa
Black text reads best on this color (13.25:1).
About this color
#A3D3FA is a light, moderately saturated blue. In OKLCH its lightness is 85%, its chroma 0.074 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.014 away. Black text reads best on it, at 13.25:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.25:1 |
| White text | 1.58:1 |
Values
| HEX | #A3D3FA |
| RGB | rgb(163, 211, 250) |
| HSL | hsl(207, 90%, 81%) |
| OKLCH | oklch(84.7% 0.074 243.3) |
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 #A3D3FA | 1.58:1 | Fails | Lc -29.9 | Dividers and decoration only |
| Black text on #A3D3FA | 13.25:1 | AAA | Lc 77.3 | Fine for body text |
| #A3D3FA text on white | 1.58:1 | Fails | Lc 26.5 | Dividers and decoration only |
| #A3D3FA text on black | 13.25:1 | AAA | Lc -76.5 | 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 300.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF3
oklch(88.5% 0.041 243.7)
-
Step 300
300 (this color)
#A3D3FA
oklch(84.7% 0.074 243.3)
-
Step 400
400
#58A8E5
oklch(70.6% 0.119 243.7)
-
Step 500
500
#0791DD
oklch(63.1% 0.152 243.2)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005483
oklch(42.8% 0.104 243)
-
Step 900
900
#00456E
oklch(37.6% 0.092 243.7)
-
Step 950
950
#022942
oklch(27% 0.062 242.6)
#A3D3FA 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) | #C3D3FC | 0.039 |
| Deuteranopia (no green cones) | #B8C9F9 | 0.034 |
| Tritanopia (no blue cones) | #86DCE0 | 0.060 |
| Achromatopsia (no color) | #CDCDCD | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3D3FA
#A3D3FA
oklch(84.7% 0.074 243.3)
- #F0C39B
#F0C39B
oklch(84.7% 0.074 63.2)
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 #A3D3FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.014
- Light Sky Blue #87CEFA ΔE 0.034
- Light Blue #ADD8E6 ΔE 0.037
- Light Blue Grey #B7C9E2 ΔE 0.040
- Sky Blue #87CEEB ΔE 0.040
- Sky #82CAFC ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.047
- Light Periwinkle #C1C6FC ΔE 0.048
Use #A3D3FA 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.