#A1B3DC
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.7% 0.062 266.4), rgb(161, 179, 220).
Aa
Black text reads best on this color (9.99:1).
About this color
#A1B3DC is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.062 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.030 away. Black text reads best on it, at 9.99:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.99:1 |
| White text | 2.10:1 |
Values
| HEX | #A1B3DC |
| RGB | rgb(161, 179, 220) |
| HSL | hsl(222, 46%, 75%) |
| OKLCH | oklch(76.7% 0.062 266.4) |
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 #A1B3DC | 2.10:1 | Fails | Lc -45.7 | Large or bold text, headings |
| Black text on #A1B3DC | 9.99:1 | AAA | Lc 62.8 | Content text, not long reading |
| #A1B3DC text on white | 2.10:1 | Fails | Lc 41.1 | Non-text elements, placeholder text |
| #A1B3DC text on black | 9.99:1 | AAA | Lc -61.2 | 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
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300 (this color)
#A1B3DC
oklch(76.7% 0.062 266.4)
-
Step 400
400
#849FDF
oklch(70.7% 0.099 266.4)
-
Step 500
500
#6686D6
oklch(63.2% 0.126 266.4)
-
Step 600
600
#4D6EC4
oklch(55.6% 0.139 266.2)
-
Step 700
700
#3F5BA9
oklch(49% 0.129 266.8)
-
Step 800
800
#344B89
oklch(42.7% 0.107 266.6)
-
Step 900
900
#2D3F6E
oklch(37.7% 0.084 266.6)
-
Step 950
950
#1A2540
oklch(26.9% 0.053 266.2)
#A1B3DC 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) | #A6B6DE | 0.011 |
| Deuteranopia (no green cones) | #A1B1DB | 0.005 |
| Tritanopia (no blue cones) | #91BBC1 | 0.055 |
| Achromatopsia (no color) | #B3B3B3 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1B3DC
#A1B3DC
oklch(76.7% 0.062 266.4)
- #C5B186
#C5B186
oklch(76.7% 0.062 85.9)
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 #A1B3DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.030
- Light Cornflower Blue #98C1D9 ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.046
- French Gray #ADB5BD ΔE 0.049
- Pastel Blue #A2BFFE ΔE 0.051
- Light Steel Blue #B0C4DE ΔE 0.051
- Carolina Blue #8AB8FE ΔE 0.052
- Cool Steel #97A7B3 ΔE 0.063
Use #A1B3DC 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.