#B1B4E5
Closest named color: Pastel Blue (#A2BFFE). oklch(78.4% 0.07 281.9), rgb(177, 180, 229).
Aa
Black text reads best on this color (10.52:1).
About this color
#B1B4E5 is a light, muted purple. In OKLCH its lightness is 78%, its chroma 0.070 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.041 away. Black text reads best on it, at 10.52:1.
| Hue family | Purples |
| Lightness | light (78%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.52:1 |
| White text | 1.99:1 |
Values
| HEX | #B1B4E5 |
| RGB | rgb(177, 180, 229) |
| HSL | hsl(237, 50%, 80%) |
| OKLCH | oklch(78.4% 0.07 281.9) |
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 #B1B4E5 | 1.99:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #B1B4E5 | 10.52:1 | AAA | Lc 65.3 | Content text, not long reading |
| #B1B4E5 text on white | 1.99:1 | Fails | Lc 38.6 | Non-text elements, placeholder text |
| #B1B4E5 text on black | 10.52:1 | AAA | Lc -63.8 | 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
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F3
oklch(88.6% 0.039 280.7)
-
Step 300
300 (this color)
#B1B4E5
oklch(78.4% 0.07 281.9)
-
Step 400
400
#9598E4
oklch(70.7% 0.111 281.4)
-
Step 500
500
#7D7CDC
oklch(63% 0.142 282)
-
Step 600
600
#6763CA
oklch(55.5% 0.155 281.8)
-
Step 700
700
#5652AF
oklch(49.2% 0.144 281.7)
-
Step 800
800
#46438D
oklch(42.6% 0.119 281.9)
-
Step 900
900
#3B3A71
oklch(37.8% 0.092 281.9)
-
Step 950
950
#222242
oklch(27% 0.059 281.7)
#B1B4E5 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) | #A7B9E7 | 0.017 |
| Deuteranopia (no green cones) | #A5B6E4 | 0.016 |
| Tritanopia (no blue cones) | #A5BDC5 | 0.062 |
| Achromatopsia (no color) | #B8B8B8 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1B4E5
#B1B4E5
oklch(78.4% 0.07 281.9)
- #C1BB87
#C1BB87
oklch(78.4% 0.07 102.3)
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 #B1B4E5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.053
- Pale Violet #CEAEFA ΔE 0.056
- Carolina Blue #8AB8FE ΔE 0.056
- Light Periwinkle #C1C6FC ΔE 0.057
Use #B1B4E5 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.