#B1BBCE
Closest named color: Cloudy Blue (#ACC2D9). oklch(79% 0.029 263.4), rgb(177, 187, 206).
Aa
Black text reads best on this color (10.86:1).
About this color
#B1BBCE is a light close to neutral grey. In OKLCH its lightness is 79%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.020 away. Black text reads best on it, at 10.86:1.
| Hue family | Neutrals |
| Lightness | light (79%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 10.86:1 |
| White text | 1.93:1 |
Values
| HEX | #B1BBCE |
| RGB | rgb(177, 187, 206) |
| HSL | hsl(219, 23%, 75%) |
| OKLCH | oklch(79% 0.029 263.4) |
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 #B1BBCE | 1.93:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #B1BBCE | 10.86:1 | AAA | Lc 66.9 | Content text, not long reading |
| #B1BBCE text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #B1BBCE text on black | 10.86:1 | AAA | Lc -65.4 | 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
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E4
oklch(88.5% 0.016 266.3)
-
Step 300
300 (this color)
#B1BBCE
oklch(79% 0.029 263.4)
-
Step 400
400
#92A1BE
oklch(70.7% 0.046 263.6)
-
Step 500
500
#778AAE
oklch(63.2% 0.059 263)
-
Step 600
600
#60739A
oklch(55.6% 0.065 264.3)
-
Step 700
700
#4F6183
oklch(49.2% 0.059 262.8)
-
Step 800
800
#414F6B
oklch(42.8% 0.05 263.8)
-
Step 900
900
#374257
oklch(37.8% 0.039 263.1)
-
Step 950
950
#202633
oklch(26.9% 0.026 265.4)
#B1BBCE 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) | #B5BCCF | 0.006 |
| Deuteranopia (no green cones) | #B3B9CE | 0.006 |
| Tritanopia (no blue cones) | #AABFC1 | 0.027 |
| Achromatopsia (no color) | #BABABA | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BBCE
#B1BBCE
oklch(79% 0.029 263.4)
- #C4B9A6
#C4B9A6
oklch(79% 0.029 81.4)
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 #B1BBCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.020
- Light Grey Blue #9DBCD4 ΔE 0.026
- French Gray #ADB5BD ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.028
- Light Cornflower Blue #98C1D9 ΔE 0.033
- Silver #C0C0C0 ΔE 0.034
- Light Blue Grey #B7C9E2 ΔE 0.042
- Thistle #D8BFD8 ΔE 0.059
Use #B1BBCE 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.