#B3BBDD
Closest named color: Cloudy Blue (#ACC2D9). oklch(79.7% 0.049 274.8), rgb(179, 187, 221).
Aa
Black text reads best on this color (11.06:1).
About this color
#B3BBDD is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.049 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.023 away. Black text reads best on it, at 11.06:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.06:1 |
| White text | 1.89:1 |
Values
| HEX | #B3BBDD |
| RGB | rgb(179, 187, 221) |
| HSL | hsl(229, 38%, 78%) |
| OKLCH | oklch(79.7% 0.049 274.8) |
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 #B3BBDD | 1.89:1 | Fails | Lc -40.4 | Non-text elements, placeholder text |
| Black text on #B3BBDD | 11.06:1 | AAA | Lc 67.8 | Content text, not long reading |
| #B3BBDD text on white | 1.89:1 | Fails | Lc 36.1 | Non-text elements, placeholder text |
| #B3BBDD text on black | 11.06:1 | AAA | Lc -66.4 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300 (this color)
#B3BBDD
oklch(79.7% 0.049 274.8)
-
Step 400
400
#929DD2
oklch(70.7% 0.079 275.1)
-
Step 500
500
#7884C6
oklch(63.1% 0.1 275.3)
-
Step 600
600
#616DB3
oklch(55.6% 0.109 274.9)
-
Step 700
700
#505B9A
oklch(49.2% 0.102 274.6)
-
Step 800
800
#424A7D
oklch(42.7% 0.085 275.5)
-
Step 900
900
#373E64
oklch(37.6% 0.066 274.9)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#B3BBDD 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) | #B2BEDF | 0.008 |
| Deuteranopia (no green cones) | #AFBBDC | 0.006 |
| Tritanopia (no blue cones) | #A9C1C6 | 0.044 |
| Achromatopsia (no color) | #BCBCBC | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3BBDD
#B3BBDD
oklch(79.7% 0.049 274.8)
- #C6BD9A
#C6BD9A
oklch(79.7% 0.048 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 #B3BBDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.023
- Light Steel Blue #B0C4DE ΔE 0.024
- Light Grey Blue #9DBCD4 ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.037
- Light Cornflower Blue #98C1D9 ΔE 0.038
- French Gray #ADB5BD ΔE 0.046
- Pastel Blue #A2BFFE ΔE 0.049
- Silver #C0C0C0 ΔE 0.050
Use #B3BBDD 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.