#B1BBDA
Closest named color: Cloudy Blue (#ACC2D9). oklch(79.4% 0.045 271.2), rgb(177, 187, 218).
Aa
Black text reads best on this color (10.98:1).
About this color
#B1BBDA is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.045 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.020 away. Black text reads best on it, at 10.98:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 10.98:1 |
| White text | 1.91:1 |
Values
| HEX | #B1BBDA |
| RGB | rgb(177, 187, 218) |
| HSL | hsl(225, 36%, 77%) |
| OKLCH | oklch(79.4% 0.045 271.2) |
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 #B1BBDA | 1.91:1 | Fails | Lc -40.8 | Non-text elements, placeholder text |
| Black text on #B1BBDA | 10.98:1 | AAA | Lc 67.4 | Content text, not long reading |
| #B1BBDA text on white | 1.91:1 | Fails | Lc 36.5 | Non-text elements, placeholder text |
| #B1BBDA text on black | 10.98:1 | AAA | Lc -66.0 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EA
oklch(88.6% 0.024 270.3)
-
Step 300
300 (this color)
#B1BBDA
oklch(79.4% 0.045 271.2)
-
Step 400
400
#909FCF
oklch(70.8% 0.072 271)
-
Step 500
500
#7586C2
oklch(63.1% 0.093 271.4)
-
Step 600
600
#5E6FAE
oklch(55.6% 0.1 271.4)
-
Step 700
700
#4D5D96
oklch(49.1% 0.094 270.8)
-
Step 800
800
#3F4C7A
oklch(42.7% 0.078 270.8)
-
Step 900
900
#363F62
oklch(37.6% 0.061 272.2)
-
Step 950
950
#1F2539
oklch(26.9% 0.038 270.9)
#B1BBDA 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) | #B2BDDB | 0.005 |
| Deuteranopia (no green cones) | #AFBAD9 | 0.004 |
| Tritanopia (no blue cones) | #A7C1C5 | 0.041 |
| Achromatopsia (no color) | #BBBBBB | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BBDA
#B1BBDA
oklch(79.4% 0.045 271.2)
- #C7BB9B
#C7BB9B
oklch(79.4% 0.046 89.9)
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 #B1BBDA, 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 Steel Blue #B0C4DE ΔE 0.023
- Light Grey Blue #9DBCD4 ΔE 0.028
- Light Cornflower Blue #98C1D9 ΔE 0.034
- Light Blue Grey #B7C9E2 ΔE 0.038
- French Gray #ADB5BD ΔE 0.041
- Silver #C0C0C0 ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.052
Use #B1BBDA 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.