#B3CBFF
Closest named color: Light Periwinkle (#C1C6FC). oklch(84.2% 0.078 265.4), rgb(179, 203, 255).
Aa
Black text reads best on this color (12.90:1).
About this color
#B3CBFF is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.078 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.020 away. Black text reads best on it, at 12.90:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.90:1 |
| White text | 1.62:1 |
Values
| HEX | #B3CBFF |
| RGB | rgb(179, 203, 255) |
| HSL | hsl(221, 100%, 85%) |
| OKLCH | oklch(84.2% 0.078 265.4) |
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 #B3CBFF | 1.62:1 | Fails | Lc -31.6 | Non-text elements, placeholder text |
| Black text on #B3CBFF | 12.90:1 | AAA | Lc 75.8 | Fine for body text |
| #B3CBFF text on white | 1.62:1 | Fails | Lc 28.0 | Dividers and decoration only |
| #B3CBFF text on black | 12.90:1 | AAA | Lc -74.9 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300 (this color)
#B3CBFF
oklch(84.2% 0.078 265.4)
-
Step 400
400
#7B9EEE
oklch(70.7% 0.124 265.4)
-
Step 500
500
#5A84E9
oklch(63.2% 0.159 265.2)
-
Step 600
600
#416BD7
oklch(55.7% 0.172 265.2)
-
Step 700
700
#3458BA
oklch(49% 0.16 265.6)
-
Step 800
800
#2B4997
oklch(42.8% 0.133 265.3)
-
Step 900
900
#263E78
oklch(37.7% 0.103 265)
-
Step 950
950
#172546
oklch(27.1% 0.064 265.1)
#B3CBFF 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) | #BACEFF | 0.013 |
| Deuteranopia (no green cones) | #B3C8FE | 0.008 |
| Tritanopia (no blue cones) | #9ED5DC | 0.069 |
| Achromatopsia (no color) | #CBCBCB | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3CBFF
#B3CBFF
oklch(84.2% 0.078 265.4)
- #E2C891
#E2C891
oklch(84.2% 0.077 85.5)
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 #B3CBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.020
- Baby Blue #A2CFFE ΔE 0.022
- Pastel Blue #A2BFFE ΔE 0.040
- Light Blue Grey #B7C9E2 ΔE 0.040
- Light Steel Blue #B0C4DE ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.051
- Cloudy Blue #ACC2D9 ΔE 0.055
- Sky #82CAFC ΔE 0.056
Use #B3CBFF 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.