#B4B8FA
Closest named color: Pastel Blue (#A2BFFE). oklch(80.3% 0.093 281.4), rgb(180, 184, 250).
Aa
Black text reads best on this color (11.17:1).
About this color
#B4B8FA is a light, moderately saturated purple. In OKLCH its lightness is 80%, its chroma 0.093 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.027 away. Black text reads best on it, at 11.17:1.
| Hue family | Purples |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.17:1 |
| White text | 1.87:1 |
Values
| HEX | #B4B8FA |
| RGB | rgb(180, 184, 250) |
| HSL | hsl(237, 88%, 84%) |
| OKLCH | oklch(80.3% 0.093 281.4) |
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 #B4B8FA | 1.87:1 | Fails | Lc -39.8 | Non-text elements, placeholder text |
| Black text on #B4B8FA | 11.17:1 | AAA | Lc 68.3 | Content text, not long reading |
| #B4B8FA text on white | 1.87:1 | Fails | Lc 35.6 | Non-text elements, placeholder text |
| #B4B8FA text on black | 11.17:1 | AAA | Lc -66.9 | 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
#F4F5FE
oklch(97.2% 0.012 281.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D3D6FB
oklch(88.6% 0.051 281.6)
-
Step 300
300 (this color)
#B4B8FA
oklch(80.3% 0.093 281.4)
-
Step 400
400
#9293FB
oklch(70.7% 0.15 281.4)
-
Step 500
500
#7A74F8
oklch(63.1% 0.191 281.5)
-
Step 600
600
#6558E7
oklch(55.6% 0.208 281.3)
-
Step 700
700
#5547C8
oklch(49.1% 0.192 281.6)
-
Step 800
800
#453BA2
oklch(42.6% 0.16 281.6)
-
Step 900
900
#393481
oklch(37.6% 0.126 281.4)
-
Step 950
950
#211F4B
oklch(26.9% 0.079 281.7)
#B4B8FA 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) | #A5BFFD | 0.024 |
| Deuteranopia (no green cones) | #A2BBF8 | 0.024 |
| Tritanopia (no blue cones) | #A3C4CF | 0.082 |
| Achromatopsia (no color) | #BDBDBD | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4B8FA
#B4B8FA
oklch(80.3% 0.093 281.4)
- #CBC179
#CBC179
oklch(80.3% 0.093 101.4)
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 #B4B8FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.027
- Light Periwinkle #C1C6FC ΔE 0.042
- Pale Violet #CEAEFA ΔE 0.042
- Light Violet #D6B4FC ΔE 0.048
- Carolina Blue #8AB8FE ΔE 0.052
- Light Steel Blue #B0C4DE ΔE 0.059
- Baby Blue #A2CFFE ΔE 0.061
- Cloudy Blue #ACC2D9 ΔE 0.063
Use #B4B8FA 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.