#B1BEFF
Closest named color: Pastel Blue (#A2BFFE). oklch(81.5% 0.093 275.4), rgb(177, 190, 255).
Aa
Black text reads best on this color (11.67:1).
About this color
#B1BEFF is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.093 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.019 away. Black text reads best on it, at 11.67:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.67:1 |
| White text | 1.79:1 |
Values
| HEX | #B1BEFF |
| RGB | rgb(177, 190, 255) |
| HSL | hsl(230, 100%, 85%) |
| OKLCH | oklch(81.5% 0.093 275.4) |
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 #B1BEFF | 1.79:1 | Fails | Lc -37.4 | Non-text elements, placeholder text |
| Black text on #B1BEFF | 11.67:1 | AAA | Lc 70.5 | Content text, not long reading |
| #B1BEFF text on white | 1.79:1 | Fails | Lc 33.3 | Non-text elements, placeholder text |
| #B1BEFF text on black | 11.67:1 | AAA | Lc -69.3 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300 (this color)
#B1BEFF
oklch(81.5% 0.093 275.4)
-
Step 400
400
#8797FC
oklch(70.8% 0.148 275.2)
-
Step 500
500
#6C79FA
oklch(63.2% 0.19 275.2)
-
Step 600
600
#575DE9
oklch(55.6% 0.207 275.5)
-
Step 700
700
#484CCA
oklch(49.2% 0.191 275.4)
-
Step 800
800
#3B3FA4
oklch(42.8% 0.16 275.6)
-
Step 900
900
#313782
oklch(37.7% 0.125 275.2)
-
Step 950
950
#1D214C
oklch(27.1% 0.078 275.8)
#B1BEFF 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) | #AAC4FF | 0.017 |
| Deuteranopia (no green cones) | #A5BEFD | 0.016 |
| Tritanopia (no blue cones) | #9CCAD5 | 0.082 |
| Achromatopsia (no color) | #C1C1C1 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BEFF
#B1BEFF
oklch(81.5% 0.093 275.4)
- #D5C27C
#D5C27C
oklch(81.4% 0.092 94.7)
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 #B1BEFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.019
- Light Periwinkle #C1C6FC ΔE 0.032
- Baby Blue #A2CFFE ΔE 0.047
- Carolina Blue #8AB8FE ΔE 0.052
- Pale Violet #CEAEFA ΔE 0.053
- Light Violet #D6B4FC ΔE 0.054
- Light Steel Blue #B0C4DE ΔE 0.055
- Light Blue Grey #B7C9E2 ΔE 0.058
Use #B1BEFF 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.