#B1BBCC
Closest named color: Cloudy Blue (#ACC2D9). oklch(79% 0.027 261.1), rgb(177, 187, 204).
Aa
Black text reads best on this color (10.84:1).
About this color
#B1BBCC is a light close to neutral grey. In OKLCH its lightness is 79%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.022 away. Black text reads best on it, at 10.84:1.
| Hue family | Neutrals |
| Lightness | light (79%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 10.84:1 |
| White text | 1.93:1 |
Values
| HEX | #B1BBCC |
| RGB | rgb(177, 187, 204) |
| HSL | hsl(218, 21%, 75%) |
| OKLCH | oklch(79% 0.027 261.1) |
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 #B1BBCC | 1.93:1 | Fails | Lc -41.5 | Non-text elements, placeholder text |
| Black text on #B1BBCC | 10.84:1 | AAA | Lc 66.8 | Content text, not long reading |
| #B1BBCC text on white | 1.93:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #B1BBCC text on black | 10.84:1 | AAA | Lc -65.3 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300 (this color)
#B1BBCC
oklch(79% 0.027 261.1)
-
Step 400
400
#92A1BC
oklch(70.6% 0.043 262.2)
-
Step 500
500
#778AAB
oklch(63.1% 0.055 261.4)
-
Step 600
600
#607496
oklch(55.6% 0.058 260.9)
-
Step 700
700
#4F6180
oklch(49% 0.055 261.1)
-
Step 800
800
#414F68
oklch(42.6% 0.045 261.8)
-
Step 900
900
#374255
oklch(37.7% 0.036 261.2)
-
Step 950
950
#202732
oklch(27.1% 0.023 259.3)
#B1BBCC 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) | #B6BCCD | 0.008 |
| Deuteranopia (no green cones) | #B3B9CC | 0.006 |
| Tritanopia (no blue cones) | #ABBEC0 | 0.023 |
| Achromatopsia (no color) | #BABABA | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BBCC
#B1BBCC
oklch(79% 0.027 261.1)
- #C3B9A8
#C3B9A8
oklch(78.9% 0.026 81.1)
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 #B1BBCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.022
- French Gray #ADB5BD ΔE 0.024
- Light Grey Blue #9DBCD4 ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.029
- Silver #C0C0C0 ΔE 0.032
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Light Blue Grey #B7C9E2 ΔE 0.043
- Pinkish Grey #C8ACA9 ΔE 0.057
Use #B1BBCC 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.