#B4BCF5
Closest named color: Pastel Blue (#A2BFFE). oklch(80.9% 0.081 278.2), rgb(180, 188, 245).
Aa
Black text reads best on this color (11.45:1).
About this color
#B4BCF5 is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.081 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.025 away. Black text reads best on it, at 11.45:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.45:1 |
| White text | 1.83:1 |
Values
| HEX | #B4BCF5 |
| RGB | rgb(180, 188, 245) |
| HSL | hsl(233, 76%, 83%) |
| OKLCH | oklch(80.9% 0.081 278.2) |
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 #B4BCF5 | 1.83:1 | Fails | Lc -38.5 | Non-text elements, placeholder text |
| Black text on #B4BCF5 | 11.45:1 | AAA | Lc 69.5 | Content text, not long reading |
| #B4BCF5 text on white | 1.83:1 | Fails | Lc 34.3 | Non-text elements, placeholder text |
| #B4BCF5 text on black | 11.45:1 | AAA | Lc -68.2 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300 (this color)
#B4BCF5
oklch(80.9% 0.081 278.2)
-
Step 400
400
#8E97F0
oklch(70.6% 0.13 278.1)
-
Step 500
500
#757BEB
oklch(63.2% 0.165 278.2)
-
Step 600
600
#5F61D9
oklch(55.6% 0.18 278.1)
-
Step 700
700
#4F4FBC
oklch(49% 0.167 278.3)
-
Step 800
800
#404298
oklch(42.7% 0.138 277.8)
-
Step 900
900
#363979
oklch(37.8% 0.107 277.9)
-
Step 950
950
#1F2247
oklch(27.1% 0.068 277.3)
#B4BCF5 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) | #ACC2F8 | 0.017 |
| Deuteranopia (no green cones) | #A8BDF4 | 0.016 |
| Tritanopia (no blue cones) | #A4C6CF | 0.072 |
| Achromatopsia (no color) | #BFBFBF | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BCF5
#B4BCF5
oklch(80.9% 0.081 278.2)
- #CEC285
#CEC285
oklch(81% 0.081 98.4)
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 #B4BCF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.025
- Light Periwinkle #C1C6FC ΔE 0.033
- Light Steel Blue #B0C4DE ΔE 0.045
- Cloudy Blue #ACC2D9 ΔE 0.050
- Baby Blue #A2CFFE ΔE 0.050
- Pale Violet #CEAEFA ΔE 0.050
- Light Blue Grey #B7C9E2 ΔE 0.051
- Light Violet #D6B4FC ΔE 0.052
Use #B4BCF5 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.