#A3DAFF
Closest named color: Baby Blue (#A2CFFE). oklch(86.3% 0.077 238.2), rgb(163, 218, 255).
Aa
Black text reads best on this color (14.02:1).
About this color
#A3DAFF is a light, moderately saturated blue. In OKLCH its lightness is 86%, its chroma 0.077 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.029 away. Black text reads best on it, at 14.02:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 14.02:1 |
| White text | 1.49:1 |
Values
| HEX | #A3DAFF |
| RGB | rgb(163, 218, 255) |
| HSL | hsl(204, 100%, 82%) |
| OKLCH | oklch(86.3% 0.077 238.2) |
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 #A3DAFF | 1.49:1 | Fails | Lc -26.4 | Dividers and decoration only |
| Black text on #A3DAFF | 14.02:1 | AAA | Lc 80.5 | Fine for body text |
| #A3DAFF text on white | 1.49:1 | Fails | Lc 23.2 | Dividers and decoration only |
| #A3DAFF text on black | 14.02:1 | AAA | Lc -80.0 | 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
#EEF7FD
oklch(97.1% 0.013 236.6)
-
Step 100
100
#D9EDFB
oklch(93.6% 0.028 238.2)
-
Step 200
200 (this color)
#A3DAFF
oklch(86.3% 0.077 238.2)
-
Step 300
300
#82CAF9
oklch(80.9% 0.098 238.3)
-
Step 400
400
#00ACF6
oklch(70.7% 0.157 238.1)
-
Step 500
500
#0093D4
oklch(63% 0.141 238.5)
-
Step 600
600
#007CB3
oklch(55.7% 0.124 238.2)
-
Step 700
700
#006897
oklch(49.1% 0.109 238.1)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#004769
oklch(37.8% 0.084 238.3)
-
Step 950
950
#002A40
oklch(27% 0.06 237.8)
#A3DAFF 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) | #CAD9FF | 0.046 |
| Deuteranopia (no green cones) | #BDCFFE | 0.039 |
| Tritanopia (no blue cones) | #83E3E6 | 0.059 |
| Achromatopsia (no color) | #D3D3D3 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3DAFF
#A3DAFF
oklch(86.3% 0.077 238.2)
- #F9C6A1
#F9C6A1
oklch(86.3% 0.076 57.5)
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 #A3DAFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.029
- Light Blue #ADD8E6 ΔE 0.035
- Powder Blue #B0E0E6 ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.046
- Celeste #A8DADC ΔE 0.050
- Sky Blue #87CEEB ΔE 0.052
- Light Blue Grey #B7C9E2 ΔE 0.052
- Sky #82CAFC ΔE 0.058
Use #A3DAFF 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.