#A3ADD5
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.4% 0.059 273.9), rgb(163, 173, 213).
Aa
Black text reads best on this color (9.49:1).
About this color
#A3ADD5 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.059 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.041 away. Black text reads best on it, at 9.49:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #A3ADD5 |
| RGB | rgb(163, 173, 213) |
| HSL | hsl(228, 37%, 74%) |
| OKLCH | oklch(75.4% 0.059 273.9) |
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 #A3ADD5 | 2.21:1 | Fails | Lc -48.3 | Large or bold text, headings |
| Black text on #A3ADD5 | 9.49:1 | AAA | Lc 60.4 | Content text, not long reading |
| #A3ADD5 text on white | 2.21:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #A3ADD5 text on black | 9.49:1 | AAA | Lc -58.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300
#B9BFD9
oklch(80.8% 0.037 275.2)
-
Step 400
400 (this color)
#A3ADD5
oklch(75.4% 0.059 273.9)
-
Step 500
500
#7B86B7
oklch(63% 0.075 274.3)
-
Step 600
600
#6470A3
oklch(55.6% 0.081 273.4)
-
Step 700
700
#535D8C
oklch(49% 0.076 274.1)
-
Step 800
800
#444C72
oklch(42.6% 0.064 274.3)
-
Step 900
900
#39405C
oklch(37.8% 0.049 273.1)
-
Step 950
950
#222536
oklch(27% 0.032 276.3)
#A3ADD5 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) | #A2B0D7 | 0.008 |
| Deuteranopia (no green cones) | #9EACD4 | 0.008 |
| Tritanopia (no blue cones) | #97B4BA | 0.052 |
| Achromatopsia (no color) | #AEAEAE | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3ADD5
#A3ADD5
oklch(75.4% 0.059 273.9)
- #BBAF85
#BBAF85
oklch(75.4% 0.059 94)
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 #A3ADD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.041
- French Gray #ADB5BD ΔE 0.049
- Cool Steel #97A7B3 ΔE 0.053
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Cloudy Blue #ACC2D9 ΔE 0.058
- Dark Gray #A9A9A9 ΔE 0.062
- Carolina Blue #8AB8FE ΔE 0.062
- Light Steel Blue #B0C4DE ΔE 0.064
Use #A3ADD5 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.