#A4ACBF
Closest named color: Cool Steel (#97A7B3). oklch(74.4% 0.029 267.5), rgb(164, 172, 191).
Aa
Black text reads best on this color (9.23:1).
About this color
#A4ACBF is a medium-light close to neutral grey. In OKLCH its lightness is 74%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Cool Steel (#97A7B3), ΔE 0.028 away. Black text reads best on it, at 9.23:1.
| Hue family | Neutrals |
| Lightness | medium-light (74%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.23:1 |
| White text | 2.27:1 |
Values
| HEX | #A4ACBF |
| RGB | rgb(164, 172, 191) |
| HSL | hsl(222, 17%, 70%) |
| OKLCH | oklch(74.4% 0.029 267.5) |
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 #A4ACBF | 2.27:1 | Fails | Lc -49.7 | Large or bold text, headings |
| Black text on #A4ACBF | 9.23:1 | AAA | Lc 59.1 | Large or bold text, headings |
| #A4ACBF text on white | 2.27:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #A4ACBF text on black | 9.23:1 | AAA | Lc -57.2 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BBC0CD
oklch(80.8% 0.019 269)
-
Step 400
400 (this color)
#A4ACBF
oklch(74.4% 0.029 267.5)
-
Step 500
500
#8089A0
oklch(63.1% 0.036 268.5)
-
Step 600
600
#69738B
oklch(55.6% 0.039 267.3)
-
Step 700
700
#576076
oklch(49% 0.037 267.6)
-
Step 800
800
#474F60
oklch(42.7% 0.03 265.3)
-
Step 900
900
#3C414F
oklch(37.6% 0.025 269.7)
-
Step 950
950
#23262E
oklch(26.9% 0.016 269.1)
#A4ACBF 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) | #A7ADC0 | 0.005 |
| Deuteranopia (no green cones) | #A4ABBF | 0.003 |
| Tritanopia (no blue cones) | #9EB0B2 | 0.027 |
| Achromatopsia (no color) | #ACACAC | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4ACBF
#A4ACBF
oklch(74.4% 0.029 267.5)
- #B4AB98
#B4AB98
oklch(74.4% 0.028 85.7)
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 #A4ACBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.028
- French Gray #ADB5BD ΔE 0.030
- Dark Gray #A9A9A9 ΔE 0.030
- Light Grey Blue #9DBCD4 ΔE 0.044
- Cool Grey #95A3A6 ΔE 0.046
- Pewter #96A8A1 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.054
Use #A4ACBF 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.