#ACB4CB
Closest named color: French Gray (#ADB5BD). oklch(77.1% 0.034 270.4), rgb(172, 180, 203).
Aa
Black text reads best on this color (10.14:1).
About this color
#ACB4CB is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.034 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.021 away. Black text reads best on it, at 10.14:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 10.14:1 |
| White text | 2.06:1 |
Values
| HEX | #ACB4CB |
| RGB | rgb(172, 180, 203) |
| HSL | hsl(225, 23%, 74%) |
| OKLCH | oklch(77.1% 0.034 270.4) |
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 #ACB4CB | 2.06:1 | Fails | Lc -45.0 | Non-text elements, placeholder text |
| Black text on #ACB4CB | 10.14:1 | AAA | Lc 63.5 | Content text, not long reading |
| #ACB4CB text on white | 2.06:1 | Fails | Lc 40.4 | Non-text elements, placeholder text |
| #ACB4CB text on black | 10.14:1 | AAA | Lc -61.9 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E6
oklch(88.5% 0.019 269.1)
-
Step 300
300 (this color)
#ACB4CB
oklch(77.1% 0.034 270.4)
-
Step 400
400
#939FC3
oklch(70.6% 0.055 270.5)
-
Step 500
500
#7988B4
oklch(63.1% 0.069 269.8)
-
Step 600
600
#6271A0
oklch(55.6% 0.076 270.2)
-
Step 700
700
#515F89
oklch(49.2% 0.07 269.6)
-
Step 800
800
#434D6F
oklch(42.6% 0.058 271.2)
-
Step 900
900
#38405A
oklch(37.6% 0.046 270.9)
-
Step 950
950
#212635
oklch(27.1% 0.029 270.1)
#ACB4CB 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) | #AEB6CC | 0.006 |
| Deuteranopia (no green cones) | #ABB3CA | 0.003 |
| Tritanopia (no blue cones) | #A5B8BB | 0.031 |
| Achromatopsia (no color) | #B4B4B4 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB4CB
#ACB4CB
oklch(77.1% 0.034 270.4)
- #BDB49C
#BDB49C
oklch(77.1% 0.035 89.9)
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 #ACB4CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.021
- Light Grey Blue #9DBCD4 ΔE 0.026
- Cloudy Blue #ACC2D9 ΔE 0.037
- Light Cornflower Blue #98C1D9 ΔE 0.039
- Light Steel Blue #B0C4DE ΔE 0.045
- Dark Gray #A9A9A9 ΔE 0.050
- Silver #C0C0C0 ΔE 0.050
- Cool Steel #97A7B3 ΔE 0.054
Use #ACB4CB 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.