#B1BBF7
Closest named color: Pastel Blue (#A2BFFE). oklch(80.6% 0.086 277), rgb(177, 187, 247).
Aa
Black text reads best on this color (11.32:1).
About this color
#B1BBF7 is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.086 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.021 away. Black text reads best on it, at 11.32:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.32:1 |
| White text | 1.85:1 |
Values
| HEX | #B1BBF7 |
| RGB | rgb(177, 187, 247) |
| HSL | hsl(231, 81%, 83%) |
| OKLCH | oklch(80.6% 0.086 277) |
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 #B1BBF7 | 1.85:1 | Fails | Lc -39.1 | Non-text elements, placeholder text |
| Black text on #B1BBF7 | 11.32:1 | AAA | Lc 68.9 | Content text, not long reading |
| #B1BBF7 text on white | 1.85:1 | Fails | Lc 34.9 | Non-text elements, placeholder text |
| #B1BBF7 text on black | 11.32:1 | AAA | Lc -67.6 | 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
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300 (this color)
#B1BBF7
oklch(80.6% 0.086 277)
-
Step 400
400
#8C97F5
oklch(70.7% 0.137 277.2)
-
Step 500
500
#717AF1
oklch(63.1% 0.176 276.9)
-
Step 600
600
#5C60DF
oklch(55.7% 0.189 276.9)
-
Step 700
700
#4C4EC2
oklch(49.1% 0.177 276.9)
-
Step 800
800
#3E419D
oklch(42.8% 0.147 276.8)
-
Step 900
900
#34387D
oklch(37.7% 0.115 276.9)
-
Step 950
950
#1E2149
oklch(26.9% 0.073 277.1)
#B1BBF7 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) | #AAC1FA | 0.016 |
| Deuteranopia (no green cones) | #A5BCF5 | 0.016 |
| Tritanopia (no blue cones) | #9FC6D0 | 0.076 |
| Achromatopsia (no color) | #BEBEBE | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BBF7
#B1BBF7
oklch(80.6% 0.086 277)
- #CFC07F
#CFC07F
oklch(80.5% 0.086 96.7)
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 #B1BBF7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.021
- Light Periwinkle #C1C6FC ΔE 0.037
- Light Steel Blue #B0C4DE ΔE 0.049
- Carolina Blue #8AB8FE ΔE 0.050
- Pale Violet #CEAEFA ΔE 0.051
- Baby Blue #A2CFFE ΔE 0.052
- Cloudy Blue #ACC2D9 ΔE 0.053
- Light Violet #D6B4FC ΔE 0.054
Use #B1BBF7 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.