#A3AECF
Closest named color: Light Grey Blue (#9DBCD4). oklch(75.3% 0.049 270.7), rgb(163, 174, 207).
Aa
Black text reads best on this color (9.51:1).
About this color
#A3AECF is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.049 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.036 away. Black text reads best on it, at 9.51:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 9.51:1 |
| White text | 2.20:1 |
Values
| HEX | #A3AECF |
| RGB | rgb(163, 174, 207) |
| HSL | hsl(225, 31%, 73%) |
| OKLCH | oklch(75.3% 0.049 270.7) |
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 #A3AECF | 2.20:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #A3AECF | 9.51:1 | AAA | Lc 60.5 | Content text, not long reading |
| #A3AECF text on white | 2.20:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #A3AECF text on black | 9.51:1 | AAA | Lc -58.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#B9C0D5
oklch(80.9% 0.031 271)
-
Step 400
400 (this color)
#A3AECF
oklch(75.3% 0.049 270.7)
-
Step 500
500
#7B88B0
oklch(63.1% 0.062 270.6)
-
Step 600
600
#64719C
oklch(55.5% 0.069 271.1)
-
Step 700
700
#535F85
oklch(49.1% 0.063 270.5)
-
Step 800
800
#444E6C
oklch(42.8% 0.052 269.9)
-
Step 900
900
#394158
oklch(37.8% 0.041 269.5)
-
Step 950
950
#222633
oklch(27.1% 0.025 271.4)
#A3AECF 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) | #A4B0D1 | 0.006 |
| Deuteranopia (no green cones) | #A1ADCE | 0.004 |
| Tritanopia (no blue cones) | #98B4B9 | 0.044 |
| Achromatopsia (no color) | #AEAEAE | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3AECF
#A3AECF
oklch(75.3% 0.049 270.7)
- #BBAE8C
#BBAE8C
oklch(75.3% 0.049 89.6)
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 #A3AECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.036
- French Gray #ADB5BD ΔE 0.039
- Cool Steel #97A7B3 ΔE 0.045
- Light Cornflower Blue #98C1D9 ΔE 0.049
- Dark Gray #A9A9A9 ΔE 0.052
- Cloudy Blue #ACC2D9 ΔE 0.055
- Light Steel Blue #B0C4DE ΔE 0.062
- Bluegrey #85A3B2 ΔE 0.064
Use #A3AECF 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.