#A5AEC9
Closest named color: French Gray (#ADB5BD). oklch(75.3% 0.04 270.8), rgb(165, 174, 201).
Aa
Black text reads best on this color (9.49:1).
About this color
#A5AEC9 is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.040 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.032 away. Black text reads best on it, at 9.49:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.49:1 |
| White text | 2.21:1 |
Values
| HEX | #A5AEC9 |
| RGB | rgb(165, 174, 201) |
| HSL | hsl(225, 25%, 72%) |
| OKLCH | oklch(75.3% 0.04 270.8) |
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 #A5AEC9 | 2.21:1 | Fails | Lc -48.3 | Large or bold text, headings |
| Black text on #A5AEC9 | 9.49:1 | AAA | Lc 60.4 | Content text, not long reading |
| #A5AEC9 text on white | 2.21:1 | Fails | Lc 43.5 | Non-text elements, placeholder text |
| #A5AEC9 text on black | 9.49:1 | AAA | Lc -58.6 | 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
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E3
oklch(88.5% 0.014 268.5)
-
Step 300
300
#BAC0D1
oklch(80.8% 0.025 270.3)
-
Step 400
400 (this color)
#A5AEC9
oklch(75.3% 0.04 270.8)
-
Step 500
500
#7E88A9
oklch(63.1% 0.051 271.7)
-
Step 600
600
#677295
oklch(55.6% 0.056 271)
-
Step 700
700
#565F7F
oklch(49.1% 0.053 272.2)
-
Step 800
800
#464E67
oklch(42.7% 0.043 270.7)
-
Step 900
900
#3B4154
oklch(37.8% 0.034 271.1)
-
Step 950
950
#222631
oklch(27% 0.021 269.3)
#A5AEC9 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) | #A6B0CA | 0.006 |
| Deuteranopia (no green cones) | #A4ADC8 | 0.003 |
| Tritanopia (no blue cones) | #9DB3B7 | 0.036 |
| Achromatopsia (no color) | #AEAEAE | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A5AEC9
#A5AEC9
oklch(75.3% 0.04 270.8)
- #B8AE92
#B8AE92
oklch(75.2% 0.04 90.7)
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 #A5AEC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.032
- Light Grey Blue #9DBCD4 ΔE 0.036
- Cool Steel #97A7B3 ΔE 0.040
- Dark Gray #A9A9A9 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.050
- Cloudy Blue #ACC2D9 ΔE 0.054
- Cool Grey #95A3A6 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.062
Use #A5AEC9 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.