#B4BFEF
Closest named color: Light Periwinkle (#C1C6FC). oklch(81.3% 0.069 274.7), rgb(180, 191, 239).
Aa
Black text reads best on this color (11.63:1).
About this color
#B4BFEF is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.069 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.030 away. Black text reads best on it, at 11.63:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 11.63:1 |
| White text | 1.80:1 |
Values
| HEX | #B4BFEF |
| RGB | rgb(180, 191, 239) |
| HSL | hsl(229, 65%, 82%) |
| OKLCH | oklch(81.3% 0.069 274.7) |
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 #B4BFEF | 1.80:1 | Fails | Lc -37.6 | Non-text elements, placeholder text |
| Black text on #B4BFEF | 11.63:1 | AAA | Lc 70.3 | Content text, not long reading |
| #B4BFEF text on white | 1.80:1 | Fails | Lc 33.5 | Non-text elements, placeholder text |
| #B4BFEF text on black | 11.63:1 | AAA | Lc -69.1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300 (this color)
#B4BFEF
oklch(81.3% 0.069 274.7)
-
Step 400
400
#8C9BE5
oklch(70.7% 0.11 274.5)
-
Step 500
500
#7180DE
oklch(63.1% 0.142 274.8)
-
Step 600
600
#5B68CB
oklch(55.7% 0.152 274.7)
-
Step 700
700
#4B56B0
oklch(49.2% 0.142 274.7)
-
Step 800
800
#3D478E
oklch(42.8% 0.117 274.4)
-
Step 900
900
#343C72
oklch(37.8% 0.092 274.8)
-
Step 950
950
#1E2343
oklch(26.9% 0.06 275)
#B4BFEF 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) | #B1C3F1 | 0.010 |
| Deuteranopia (no green cones) | #ADBFEE | 0.009 |
| Tritanopia (no blue cones) | #A5C8CF | 0.062 |
| Achromatopsia (no color) | #C1C1C1 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BFEF
#B4BFEF
oklch(81.3% 0.069 274.7)
- #D0C28F
#D0C28F
oklch(81.3% 0.069 94.6)
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 #B4BFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.030
- Pastel Blue #A2BFFE ΔE 0.030
- Light Steel Blue #B0C4DE ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.037
- Light Blue Grey #B7C9E2 ΔE 0.038
- Baby Blue #A2CFFE ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.051
- Light Grey Blue #9DBCD4 ΔE 0.051
Use #B4BFEF 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.