#A0B3D1
Closest named color: Light Grey Blue (#9DBCD4). oklch(76.2% 0.048 259.5), rgb(160, 179, 209).
Aa
Black text reads best on this color (9.86:1).
About this color
#A0B3D1 is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.048 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.023 away. Black text reads best on it, at 9.86:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.86:1 |
| White text | 2.12:1 |
Values
| HEX | #A0B3D1 |
| RGB | rgb(160, 179, 209) |
| HSL | hsl(217, 35%, 72%) |
| OKLCH | oklch(76.2% 0.048 259.5) |
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 #A0B3D1 | 2.12:1 | Fails | Lc -46.4 | Large or bold text, headings |
| Black text on #A0B3D1 | 9.86:1 | AAA | Lc 62.2 | Content text, not long reading |
| #A0B3D1 text on white | 2.12:1 | Fails | Lc 41.8 | Non-text elements, placeholder text |
| #A0B3D1 text on black | 9.86:1 | AAA | Lc -60.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300 (this color)
#A0B3D1
oklch(76.2% 0.048 259.5)
-
Step 400
400
#84A2D1
oklch(70.7% 0.077 259.2)
-
Step 500
500
#658AC5
oklch(63.1% 0.099 259.5)
-
Step 600
600
#4C73B1
oklch(55.5% 0.107 259.3)
-
Step 700
700
#3D6099
oklch(49% 0.101 259.7)
-
Step 800
800
#334F7C
oklch(42.7% 0.083 259.5)
-
Step 900
900
#2D4264
oklch(37.8% 0.064 259.7)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#A0B3D1 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) | #A9B4D2 | 0.013 |
| Deuteranopia (no green cones) | #A4B0D0 | 0.009 |
| Tritanopia (no blue cones) | #93B9BD | 0.042 |
| Achromatopsia (no color) | #B2B2B2 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0B3D1
#A0B3D1
oklch(76.2% 0.048 259.5)
- #C2AF90
#C2AF90
oklch(76.2% 0.048 80)
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 #A0B3D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.023
- French Gray #ADB5BD ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.036
- Cloudy Blue #ACC2D9 ΔE 0.044
- Cool Steel #97A7B3 ΔE 0.050
- Light Steel Blue #B0C4DE ΔE 0.052
- Dark Gray #A9A9A9 ΔE 0.055
- Pastel Blue #A2BFFE ΔE 0.065
Use #A0B3D1 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.