#A1BBD3
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.1% 0.045 246.3), rgb(161, 187, 211).
Aa
Black text reads best on this color (10.56:1).
About this color
#A1BBD3 is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.045 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.005 away. Black text reads best on it, at 10.56:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.56:1 |
| White text | 1.98:1 |
Values
| HEX | #A1BBD3 |
| RGB | rgb(161, 187, 211) |
| HSL | hsl(209, 36%, 73%) |
| OKLCH | oklch(78.1% 0.045 246.3) |
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 #A1BBD3 | 1.98:1 | Fails | Lc -42.9 | Non-text elements, placeholder text |
| Black text on #A1BBD3 | 10.56:1 | AAA | Lc 65.5 | Content text, not long reading |
| #A1BBD3 text on white | 1.98:1 | Fails | Lc 38.4 | Non-text elements, placeholder text |
| #A1BBD3 text on black | 10.56:1 | AAA | Lc -63.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300 (this color)
#A1BBD3
oklch(78.1% 0.045 246.3)
-
Step 400
400
#7CA5CB
oklch(70.6% 0.072 246.9)
-
Step 500
500
#598FBE
oklch(63.2% 0.092 246.2)
-
Step 600
600
#3D78AA
oklch(55.6% 0.1 246.4)
-
Step 700
700
#2F6592
oklch(49.1% 0.092 246.3)
-
Step 800
800
#285276
oklch(42.6% 0.076 246.7)
-
Step 900
900
#25445F
oklch(37.6% 0.059 246.5)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#A1BBD3 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) | #B2BBD4 | 0.022 |
| Deuteranopia (no green cones) | #ACB5D3 | 0.020 |
| Tritanopia (no blue cones) | #93C1C3 | 0.037 |
| Achromatopsia (no color) | #B8B8B8 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A1BBD3
#A1BBD3
oklch(78.1% 0.045 246.3)
- #CCB39A
#CCB39A
oklch(78.2% 0.045 67.1)
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 #A1BBD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.005
- Light Cornflower Blue #98C1D9 ΔE 0.018
- Cloudy Blue #ACC2D9 ΔE 0.025
- French Gray #ADB5BD ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.034
- Light Blue Grey #B7C9E2 ΔE 0.051
- Silver #C0C0C0 ΔE 0.052
- Sky Blue #87CEEB ΔE 0.055
Use #A1BBD3 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.