#ACB1CA
Closest named color: French Gray (#ADB5BD). oklch(76.5% 0.036 276.6), rgb(172, 177, 202).
Aa
Black text reads best on this color (9.89:1).
About this color
#ACB1CA is a medium-light, muted blue. In OKLCH its lightness is 76%, its chroma 0.036 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.025 away. Black text reads best on it, at 9.89:1.
| Hue family | Blues |
| Lightness | medium-light (76%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.89:1 |
| White text | 2.12:1 |
Values
| HEX | #ACB1CA |
| RGB | rgb(172, 177, 202) |
| HSL | hsl(230, 22%, 73%) |
| OKLCH | oklch(76.5% 0.036 276.6) |
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 #ACB1CA | 2.12:1 | Fails | Lc -46.3 | Large or bold text, headings |
| Black text on #ACB1CA | 9.89:1 | AAA | Lc 62.3 | Content text, not long reading |
| #ACB1CA text on white | 2.12:1 | Fails | Lc 41.6 | Non-text elements, placeholder text |
| #ACB1CA text on black | 9.89:1 | AAA | Lc -60.6 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E7
oklch(88.4% 0.021 276.9)
-
Step 300
300 (this color)
#ACB1CA
oklch(76.5% 0.036 276.6)
-
Step 400
400
#979EC5
oklch(70.7% 0.058 276.9)
-
Step 500
500
#7D86B6
oklch(63.1% 0.073 275.9)
-
Step 600
600
#676FA2
oklch(55.6% 0.08 276.6)
-
Step 700
700
#565D8B
oklch(49.2% 0.074 276.7)
-
Step 800
800
#464C71
oklch(42.8% 0.062 276.4)
-
Step 900
900
#3B3F5B
oklch(37.6% 0.048 277.5)
-
Step 950
950
#222535
oklch(26.9% 0.03 276)
#ACB1CA 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) | #AAB3CB | 0.005 |
| Deuteranopia (no green cones) | #A9B1C9 | 0.004 |
| Tritanopia (no blue cones) | #A5B5B9 | 0.032 |
| Achromatopsia (no color) | #B2B2B2 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB1CA
#ACB1CA
oklch(76.5% 0.036 276.6)
- #B9B399
#B9B399
oklch(76.5% 0.036 96.4)
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 #ACB1CA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.025
- Light Grey Blue #9DBCD4 ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Dark Gray #A9A9A9 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.050
- Light Steel Blue #B0C4DE ΔE 0.052
- Pinkish Grey #C8ACA9 ΔE 0.056
Use #ACB1CA 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.