#A3ADDF
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.7% 0.073 275.7), rgb(163, 173, 223).
Aa
Black text reads best on this color (9.60:1).
About this color
#A3ADDF is a medium-light, moderately saturated blue. In OKLCH its lightness is 76%, its chroma 0.073 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.048 away. Black text reads best on it, at 9.60:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.60:1 |
| White text | 2.18:1 |
Values
| HEX | #A3ADDF |
| RGB | rgb(163, 173, 223) |
| HSL | hsl(230, 48%, 76%) |
| OKLCH | oklch(75.7% 0.073 275.7) |
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 #A3ADDF | 2.18:1 | Fails | Lc -47.8 | Large or bold text, headings |
| Black text on #A3ADDF | 9.60:1 | AAA | Lc 60.9 | Content text, not long reading |
| #A3ADDF text on white | 2.18:1 | Fails | Lc 43.0 | Non-text elements, placeholder text |
| #A3ADDF text on black | 9.60:1 | AAA | Lc -59.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B8BFDF
oklch(81% 0.046 275.6)
-
Step 400
400 (this color)
#A3ADDF
oklch(75.7% 0.073 275.7)
-
Step 500
500
#7A85C2
oklch(63.2% 0.093 275.6)
-
Step 600
600
#636DAE
oklch(55.5% 0.102 275.9)
-
Step 700
700
#525B96
oklch(49.1% 0.095 275.8)
-
Step 800
800
#434B79
oklch(42.7% 0.077 275.2)
-
Step 900
900
#393F62
oklch(37.9% 0.06 275.7)
-
Step 950
950
#212539
oklch(27% 0.038 274.9)
#A3ADDF 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) | #9FB2E1 | 0.013 |
| Deuteranopia (no green cones) | #9BADDE | 0.011 |
| Tritanopia (no blue cones) | #94B6BE | 0.065 |
| Achromatopsia (no color) | #AFAFAF | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3ADDF
#A3ADDF
oklch(75.7% 0.073 275.7)
- #BEB17B
#BEB17B
oklch(75.8% 0.073 96.2)
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 #A3ADDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.048
- Carolina Blue #8AB8FE ΔE 0.052
- Pastel Blue #A2BFFE ΔE 0.056
- Light Cornflower Blue #98C1D9 ΔE 0.058
- French Gray #ADB5BD ΔE 0.061
- Cloudy Blue #ACC2D9 ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.066
- Light Steel Blue #B0C4DE ΔE 0.067
Use #A3ADDF 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.