#B4B5EF
Closest named color: Pastel Blue (#A2BFFE). oklch(79.3% 0.082 283.6), rgb(180, 181, 239).
Aa
Black text reads best on this color (10.79:1).
About this color
#B4B5EF is a light, moderately saturated purple. In OKLCH its lightness is 79%, its chroma 0.082 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.034 away. Black text reads best on it, at 10.79:1.
| Hue family | Purples |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.79:1 |
| White text | 1.94:1 |
Values
| HEX | #B4B5EF |
| RGB | rgb(180, 181, 239) |
| HSL | hsl(239, 65%, 82%) |
| OKLCH | oklch(79.3% 0.082 283.6) |
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 #B4B5EF | 1.94:1 | Fails | Lc -41.7 | Non-text elements, placeholder text |
| Black text on #B4B5EF | 10.79:1 | AAA | Lc 66.6 | Content text, not long reading |
| #B4B5EF text on white | 1.94:1 | Fails | Lc 37.3 | Non-text elements, placeholder text |
| #B4B5EF text on black | 10.79:1 | AAA | Lc -65.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D5D6F7
oklch(88.6% 0.045 284.1)
-
Step 300
300 (this color)
#B4B5EF
oklch(79.3% 0.082 283.6)
-
Step 400
400
#9794EF
oklch(70.7% 0.131 284)
-
Step 500
500
#7F77EA
oklch(63.1% 0.168 283.6)
-
Step 600
600
#6A5DD8
oklch(55.7% 0.182 283.6)
-
Step 700
700
#594BBB
oklch(49% 0.169 283.9)
-
Step 800
800
#483F98
oklch(42.8% 0.14 283.3)
-
Step 900
900
#3C3679
oklch(37.7% 0.11 283.8)
-
Step 950
950
#232047
oklch(27% 0.07 284.1)
#B4B5EF 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) | #A6BCF2 | 0.024 |
| Deuteranopia (no green cones) | #A3B8ED | 0.023 |
| Tritanopia (no blue cones) | #A6BFC9 | 0.072 |
| Achromatopsia (no color) | #BABABA | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4B5EF
#B4B5EF
oklch(79.3% 0.082 283.6)
- #C4BE80
#C4BE80
oklch(79.2% 0.082 103.4)
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 #B4B5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.034
- Pale Violet #CEAEFA ΔE 0.045
- Light Periwinkle #C1C6FC ΔE 0.049
- Light Violet #D6B4FC ΔE 0.053
- Light Steel Blue #B0C4DE ΔE 0.053
- Carolina Blue #8AB8FE ΔE 0.054
- Cloudy Blue #ACC2D9 ΔE 0.055
- Light Grey Blue #9DBCD4 ΔE 0.058
Use #B4B5EF 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.