#B1B4BF
Closest named color: French Gray (#ADB5BD). oklch(77.1% 0.016 273.8), rgb(177, 180, 191).
Aa
Black text reads best on this color (10.15:1).
About this color
#B1B4BF is a medium-light close to neutral grey. In OKLCH its lightness is 77%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is French Gray (#ADB5BD), ΔE 0.007 away. Black text reads best on it, at 10.15:1.
| Hue family | Neutrals |
| Lightness | medium-light (77%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 10.15:1 |
| White text | 2.06:1 |
Values
| HEX | #B1B4BF |
| RGB | rgb(177, 180, 191) |
| HSL | hsl(227, 10%, 72%) |
| OKLCH | oklch(77.1% 0.016 273.8) |
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 #B1B4BF | 2.06:1 | Fails | Lc -45.0 | Non-text elements, placeholder text |
| Black text on #B1B4BF | 10.15:1 | AAA | Lc 63.5 | Content text, not long reading |
| #B1B4BF text on white | 2.06:1 | Fails | Lc 40.4 | Non-text elements, placeholder text |
| #B1B4BF text on black | 10.15:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9DF
oklch(88.6% 0.008 271.3)
-
Step 300
300 (this color)
#B1B4BF
oklch(77.1% 0.016 273.8)
-
Step 400
400
#9BA0B1
oklch(70.7% 0.025 272.7)
-
Step 500
500
#83889E
oklch(63% 0.034 275.3)
-
Step 600
600
#6C7289
oklch(55.5% 0.036 273.7)
-
Step 700
700
#5B6074
oklch(49.2% 0.033 274.1)
-
Step 800
800
#4A4E5E
oklch(42.6% 0.027 274.2)
-
Step 900
900
#3E414D
oklch(37.7% 0.021 274.3)
-
Step 950
950
#24262D
oklch(27% 0.013 272.9)
#B1B4BF 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) | #B1B5C0 | 0.003 |
| Deuteranopia (no green cones) | #B0B4BF | 0.001 |
| Tritanopia (no blue cones) | #AEB6B7 | 0.015 |
| Achromatopsia (no color) | #B4B4B4 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1B4BF
#B1B4BF
oklch(77.1% 0.016 273.8)
- #B8B5A9
#B8B5A9
oklch(77.2% 0.017 95.3)
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 #B1B4BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.007
- Light Grey Blue #9DBCD4 ΔE 0.037
- Dark Gray #A9A9A9 ΔE 0.039
- Silver #C0C0C0 ΔE 0.040
- Pinkish Grey #C8ACA9 ΔE 0.042
- Cloudy Blue #ACC2D9 ΔE 0.043
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Light Steel Blue #B0C4DE ΔE 0.051
Use #B1B4BF 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.