#A3BBD9
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.4% 0.05 254.1), rgb(163, 187, 217).
Aa
Black text reads best on this color (10.66:1).
About this color
#A3BBD9 is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.050 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.012 away. Black text reads best on it, at 10.66:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.66:1 |
| White text | 1.96:1 |
Values
| HEX | #A3BBD9 |
| RGB | rgb(163, 187, 217) |
| HSL | hsl(213, 42%, 75%) |
| OKLCH | oklch(78.4% 0.05 254.1) |
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 #A3BBD9 | 1.96:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #A3BBD9 | 10.66:1 | AAA | Lc 66.0 | Content text, not long reading |
| #A3BBD9 text on white | 1.96:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #A3BBD9 text on black | 10.66:1 | AAA | Lc -64.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CDDBEC
oklch(88.6% 0.028 253.2)
-
Step 300
300 (this color)
#A3BBD9
oklch(78.4% 0.05 254.1)
-
Step 400
400
#7EA3D2
oklch(70.6% 0.08 254.7)
-
Step 500
500
#5C8CC7
oklch(63.1% 0.104 254.3)
-
Step 600
600
#4275B3
oklch(55.6% 0.112 254.4)
-
Step 700
700
#33629A
oklch(49% 0.104 254.1)
-
Step 800
800
#2B507D
oklch(42.6% 0.087 254.4)
-
Step 900
900
#274364
oklch(37.7% 0.066 253.5)
-
Step 950
950
#17273B
oklch(26.9% 0.043 254.6)
#A3BBD9 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) | #B0BCDA | 0.017 |
| Deuteranopia (no green cones) | #AAB6D8 | 0.015 |
| Tritanopia (no blue cones) | #94C1C5 | 0.043 |
| Achromatopsia (no color) | #B9B9B9 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3BBD9
#A3BBD9
oklch(78.4% 0.05 254.1)
- #CCB495
#CCB495
oklch(78.3% 0.05 74)
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 #A3BBD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.012
- Light Cornflower Blue #98C1D9 ΔE 0.020
- Cloudy Blue #ACC2D9 ΔE 0.023
- Light Steel Blue #B0C4DE ΔE 0.031
- French Gray #ADB5BD ΔE 0.039
- Light Blue Grey #B7C9E2 ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.052
- Sky Blue #87CEEB ΔE 0.054
Use #A3BBD9 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.