#B1B5C8
Closest named color: French Gray (#ADB5BD). oklch(77.6% 0.027 276.3), rgb(177, 181, 200).
Aa
Black text reads best on this color (10.31:1).
About this color
#B1B5C8 is a medium-light close to neutral grey. In OKLCH its lightness is 78%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is French Gray (#ADB5BD), ΔE 0.017 away. Black text reads best on it, at 10.31:1.
| Hue family | Neutrals |
| Lightness | medium-light (78%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 10.31:1 |
| White text | 2.03:1 |
Values
| HEX | #B1B5C8 |
| RGB | rgb(177, 181, 200) |
| HSL | hsl(230, 17%, 74%) |
| OKLCH | oklch(77.6% 0.027 276.3) |
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 #B1B5C8 | 2.03:1 | Fails | Lc -44.1 | Non-text elements, placeholder text |
| Black text on #B1B5C8 | 10.31:1 | AAA | Lc 64.3 | Content text, not long reading |
| #B1B5C8 text on white | 2.03:1 | Fails | Lc 39.6 | Non-text elements, placeholder text |
| #B1B5C8 text on black | 10.31:1 | AAA | Lc -62.7 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D8E3
oklch(88.4% 0.015 277.8)
-
Step 300
300 (this color)
#B1B5C8
oklch(77.6% 0.027 276.3)
-
Step 400
400
#999FBC
oklch(70.7% 0.043 276)
-
Step 500
500
#8087AC
oklch(63.1% 0.056 276.3)
-
Step 600
600
#697097
oklch(55.5% 0.061 276.3)
-
Step 700
700
#585E81
oklch(49.1% 0.057 276.6)
-
Step 800
800
#484D69
oklch(42.7% 0.047 276.4)
-
Step 900
900
#3C4055
oklch(37.7% 0.036 276.1)
-
Step 950
950
#232632
oklch(27.1% 0.023 273.8)
#B1B5C8 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) | #B0B7C9 | 0.005 |
| Deuteranopia (no green cones) | #AFB5C7 | 0.003 |
| Tritanopia (no blue cones) | #ACB8BB | 0.024 |
| Achromatopsia (no color) | #B6B6B6 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1B5C8
#B1B5C8
oklch(77.6% 0.027 276.3)
- #BBB6A3
#BBB6A3
oklch(77.5% 0.027 94.8)
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 #B1B5C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.017
- Light Grey Blue #9DBCD4 ΔE 0.030
- Cloudy Blue #ACC2D9 ΔE 0.035
- Silver #C0C0C0 ΔE 0.042
- Light Cornflower Blue #98C1D9 ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.043
- Dark Gray #A9A9A9 ΔE 0.049
- Pinkish Grey #C8ACA9 ΔE 0.050
Use #B1B5C8 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.