#A3BBD1
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.1% 0.041 246), rgb(163, 187, 209).
Aa
Black text reads best on this color (10.58:1).
About this color
#A3BBD1 is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.041 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.008 away. Black text reads best on it, at 10.58:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.58:1 |
| White text | 1.98:1 |
Values
| HEX | #A3BBD1 |
| RGB | rgb(163, 187, 209) |
| HSL | hsl(209, 33%, 73%) |
| OKLCH | oklch(78.1% 0.041 246) |
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 #A3BBD1 | 1.98:1 | Fails | Lc -42.8 | Non-text elements, placeholder text |
| Black text on #A3BBD1 | 10.58:1 | AAA | Lc 65.6 | Content text, not long reading |
| #A3BBD1 text on white | 1.98:1 | Fails | Lc 38.3 | Non-text elements, placeholder text |
| #A3BBD1 text on black | 10.58:1 | AAA | Lc -64.1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300 (this color)
#A3BBD1
oklch(78.1% 0.041 246)
-
Step 400
400
#7FA5C8
oklch(70.7% 0.066 246.7)
-
Step 500
500
#5E8FB9
oklch(63.2% 0.083 245.5)
-
Step 600
600
#4378A6
oklch(55.6% 0.092 246.6)
-
Step 700
700
#34658E
oklch(49.1% 0.085 245.9)
-
Step 800
800
#2C5273
oklch(42.6% 0.07 246.6)
-
Step 900
900
#28445D
oklch(37.6% 0.055 246.8)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#A3BBD1 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) | #B3BBD2 | 0.021 |
| Deuteranopia (no green cones) | #ADB6D1 | 0.018 |
| Tritanopia (no blue cones) | #97C0C2 | 0.033 |
| Achromatopsia (no color) | #B8B8B8 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBD1
#A3BBD1
oklch(78.1% 0.041 246)
- #CAB39D
#CAB39D
oklch(78.1% 0.04 65.9)
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 #A3BBD1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.008
- Light Cornflower Blue #98C1D9 ΔE 0.019
- Cloudy Blue #ACC2D9 ΔE 0.024
- French Gray #ADB5BD ΔE 0.029
- Light Steel Blue #B0C4DE ΔE 0.033
- Silver #C0C0C0 ΔE 0.049
- Light Blue Grey #B7C9E2 ΔE 0.050
- Sky Blue #87CEEB ΔE 0.057
Use #A3BBD1 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.