#ACB1CC
Closest named color: French Gray (#ADB5BD). oklch(76.5% 0.039 277.1), rgb(172, 177, 204).
Aa
Black text reads best on this color (9.91:1).
About this color
#ACB1CC is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.039 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.027 away. Black text reads best on it, at 9.91:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.91:1 |
| White text | 2.11:1 |
Values
| HEX | #ACB1CC |
| RGB | rgb(172, 177, 204) |
| HSL | hsl(231, 24%, 74%) |
| OKLCH | oklch(76.5% 0.039 277.1) |
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 #ACB1CC | 2.11:1 | Fails | Lc -46.2 | Large or bold text, headings |
| Black text on #ACB1CC | 9.91:1 | AAA | Lc 62.4 | Content text, not long reading |
| #ACB1CC text on white | 2.11:1 | Fails | Lc 41.5 | Non-text elements, placeholder text |
| #ACB1CC text on black | 9.91:1 | AAA | Lc -60.7 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300 (this color)
#ACB1CC
oklch(76.5% 0.039 277.1)
-
Step 400
400
#969EC8
oklch(70.8% 0.062 276.3)
-
Step 500
500
#7D85BA
oklch(63.1% 0.08 277.2)
-
Step 600
600
#676EA6
oklch(55.6% 0.087 277.7)
-
Step 700
700
#555C8E
oklch(49.1% 0.08 276.9)
-
Step 800
800
#464B73
oklch(42.6% 0.067 277.7)
-
Step 900
900
#3B3F5D
oklch(37.7% 0.052 277.8)
-
Step 950
950
#222537
oklch(27% 0.034 276.6)
#ACB1CC 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) | #AAB3CD | 0.005 |
| Deuteranopia (no green cones) | #A8B1CB | 0.006 |
| Tritanopia (no blue cones) | #A5B6BA | 0.035 |
| Achromatopsia (no color) | #B2B2B2 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB1CC
#ACB1CC
oklch(76.5% 0.039 277.1)
- #B9B397
#B9B397
oklch(76.4% 0.039 97.2)
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 #ACB1CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.027
- Light Grey Blue #9DBCD4 ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Dark Gray #A9A9A9 ΔE 0.049
- Light Steel Blue #B0C4DE ΔE 0.051
- Cool Steel #97A7B3 ΔE 0.052
- Silver #C0C0C0 ΔE 0.058
Use #ACB1CC 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.