#B4BBEF
Closest named color: Pastel Blue (#A2BFFE). oklch(80.5% 0.074 278.6), rgb(180, 187, 239).
Aa
Black text reads best on this color (11.29:1).
About this color
#B4BBEF is a light, moderately saturated blue. In OKLCH its lightness is 80%, its chroma 0.074 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.029 away. Black text reads best on it, at 11.29:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.29:1 |
| White text | 1.85:1 |
Values
| HEX | #B4BBEF |
| RGB | rgb(180, 187, 239) |
| HSL | hsl(233, 65%, 82%) |
| OKLCH | oklch(80.5% 0.074 278.6) |
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 #B4BBEF | 1.85:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #B4BBEF | 11.29:1 | AAA | Lc 68.8 | Content text, not long reading |
| #B4BBEF text on white | 1.85:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #B4BBEF text on black | 11.29:1 | AAA | Lc -67.5 | 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
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300 (this color)
#B4BBEF
oklch(80.5% 0.074 278.6)
-
Step 400
400
#9098E9
oklch(70.6% 0.118 278.6)
-
Step 500
500
#777DE3
oklch(63.2% 0.151 278.6)
-
Step 600
600
#6164D0
oklch(55.7% 0.163 278.5)
-
Step 700
700
#5152B4
oklch(49.1% 0.152 278.8)
-
Step 800
800
#424492
oklch(42.8% 0.126 278.6)
-
Step 900
900
#373A74
oklch(37.7% 0.097 278.4)
-
Step 950
950
#202244
oklch(26.9% 0.063 278.8)
#B4BBEF 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) | #ADC0F1 | 0.015 |
| Deuteranopia (no green cones) | #A9BCEE | 0.015 |
| Tritanopia (no blue cones) | #A6C4CD | 0.065 |
| Achromatopsia (no color) | #BEBEBE | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BBEF
#B4BBEF
oklch(80.5% 0.074 278.6)
- #CBC089
#CBC089
oklch(80.4% 0.074 98.2)
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 #B4BBEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.029
- Light Periwinkle #C1C6FC ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.043
- Light Blue Grey #B7C9E2 ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.052
- Pale Violet #CEAEFA ΔE 0.053
Use #B4BBEF 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.