#A3B4DA
Closest named color: Light Grey Blue (#9DBCD4). oklch(77% 0.058 266.1), rgb(163, 180, 218).
Aa
Black text reads best on this color (10.09:1).
About this color
#A3B4DA is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.058 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.027 away. Black text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.09:1 |
| White text | 2.07:1 |
Values
| HEX | #A3B4DA |
| RGB | rgb(163, 180, 218) |
| HSL | hsl(221, 43%, 75%) |
| OKLCH | oklch(77% 0.058 266.1) |
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 #A3B4DA | 2.07:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #A3B4DA | 10.09:1 | AAA | Lc 63.3 | Content text, not long reading |
| #A3B4DA text on white | 2.07:1 | Fails | Lc 40.6 | Non-text elements, placeholder text |
| #A3B4DA text on black | 10.09:1 | AAA | Lc -61.7 | Content text, not long reading |
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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300 (this color)
#A3B4DA
oklch(77% 0.058 266.1)
-
Step 400
400
#869FDB
oklch(70.7% 0.093 266.7)
-
Step 500
500
#6887D1
oklch(63.2% 0.117 265.9)
-
Step 600
600
#506FBE
oklch(55.6% 0.128 266.2)
-
Step 700
700
#415CA4
oklch(49% 0.12 266.6)
-
Step 800
800
#354C85
oklch(42.7% 0.099 265.8)
-
Step 900
900
#2E406A
oklch(37.7% 0.076 265.4)
-
Step 950
950
#1B253E
oklch(26.8% 0.049 266.6)
#A3B4DA 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) | #A8B6DC | 0.009 |
| Deuteranopia (no green cones) | #A3B2D9 | 0.005 |
| Tritanopia (no blue cones) | #95BBC1 | 0.050 |
| Achromatopsia (no color) | #B4B4B4 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B4DA
#A3B4DA
oklch(77% 0.058 266.1)
- #C5B28A
#C5B28A
oklch(77% 0.058 85.5)
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 #A3B4DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.027
- Light Cornflower Blue #98C1D9 ΔE 0.037
- Cloudy Blue #ACC2D9 ΔE 0.041
- French Gray #ADB5BD ΔE 0.044
- Light Steel Blue #B0C4DE ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.056
- Cool Steel #97A7B3 ΔE 0.062
Use #A3B4DA 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.