#B3BBF9
Closest named color: Pastel Blue (#A2BFFE). oklch(80.8% 0.088 278.5), rgb(179, 187, 249).
Aa
Black text reads best on this color (11.39:1).
About this color
#B3BBF9 is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.088 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.022 away. Black text reads best on it, at 11.39:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.39:1 |
| White text | 1.84:1 |
Values
| HEX | #B3BBF9 |
| RGB | rgb(179, 187, 249) |
| HSL | hsl(233, 85%, 84%) |
| OKLCH | oklch(80.8% 0.088 278.5) |
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 #B3BBF9 | 1.84:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #B3BBF9 | 11.39:1 | AAA | Lc 69.3 | Content text, not long reading |
| #B3BBF9 text on white | 1.84:1 | Fails | Lc 34.6 | Non-text elements, placeholder text |
| #B3BBF9 text on black | 11.39:1 | AAA | Lc -68.0 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300 (this color)
#B3BBF9
oklch(80.8% 0.088 278.5)
-
Step 400
400
#8E96F7
oklch(70.8% 0.141 278.6)
-
Step 500
500
#7478F3
oklch(63.1% 0.18 278.5)
-
Step 600
600
#5F5DE2
oklch(55.6% 0.197 278.5)
-
Step 700
700
#4F4CC4
oklch(49.1% 0.182 278.5)
-
Step 800
800
#403F9E
oklch(42.6% 0.15 278.4)
-
Step 900
900
#36377E
oklch(37.8% 0.117 278.6)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#B3BBF9 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) | #A9C1FC | 0.018 |
| Deuteranopia (no green cones) | #A5BCF7 | 0.018 |
| Tritanopia (no blue cones) | #A1C6D0 | 0.078 |
| Achromatopsia (no color) | #BFBFBF | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3BBF9
#B3BBF9
oklch(80.8% 0.088 278.5)
- #CFC17E
#CFC17E
oklch(80.7% 0.088 97.8)
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 #B3BBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.022
- Light Periwinkle #C1C6FC ΔE 0.036
- Pale Violet #CEAEFA ΔE 0.048
- Light Violet #D6B4FC ΔE 0.051
- Light Steel Blue #B0C4DE ΔE 0.052
- Carolina Blue #8AB8FE ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.053
- Cloudy Blue #ACC2D9 ΔE 0.056
Use #B3BBF9 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.