#B5BBF0
Closest named color: Pastel Blue (#A2BFFE). oklch(80.6% 0.075 279.5), rgb(181, 187, 240).
Aa
Black text reads best on this color (11.33:1).
About this color
#B5BBF0 is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.075 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.029 away. Black text reads best on it, at 11.33:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.33:1 |
| White text | 1.85:1 |
Values
| HEX | #B5BBF0 |
| RGB | rgb(181, 187, 240) |
| HSL | hsl(234, 66%, 83%) |
| OKLCH | oklch(80.6% 0.075 279.5) |
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 #B5BBF0 | 1.85:1 | Fails | Lc -39.1 | Non-text elements, placeholder text |
| Black text on #B5BBF0 | 11.33:1 | AAA | Lc 69.0 | Content text, not long reading |
| #B5BBF0 text on white | 1.85:1 | Fails | Lc 34.9 | Non-text elements, placeholder text |
| #B5BBF0 text on black | 11.33:1 | AAA | Lc -67.7 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300 (this color)
#B5BBF0
oklch(80.6% 0.075 279.5)
-
Step 400
400
#9198EA
oklch(70.7% 0.12 279.1)
-
Step 500
500
#787CE4
oklch(63.1% 0.154 279.4)
-
Step 600
600
#6362D2
oklch(55.6% 0.168 279.8)
-
Step 700
700
#5251B6
oklch(49.2% 0.156 279.5)
-
Step 800
800
#434393
oklch(42.8% 0.128 279.5)
-
Step 900
900
#383975
oklch(37.7% 0.1 279.7)
-
Step 950
950
#212245
oklch(27.1% 0.064 280)
#B5BBF0 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) | #ACC0F2 | 0.016 |
| Deuteranopia (no green cones) | #A9BCEF | 0.016 |
| Tritanopia (no blue cones) | #A7C4CD | 0.066 |
| Achromatopsia (no color) | #BEBEBE | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5BBF0
#B5BBF0
oklch(80.6% 0.075 279.5)
- #CBC189
#CBC189
oklch(80.6% 0.075 99.2)
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 #B5BBF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.029
- Light Periwinkle #C1C6FC ΔE 0.035
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.048
- Pale Violet #CEAEFA ΔE 0.051
- Baby Blue #A2CFFE ΔE 0.053
- Light Violet #D6B4FC ΔE 0.054
Use #B5BBF0 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.