#B3C3FF
Closest named color: Light Periwinkle (#C1C6FC). oklch(82.6% 0.086 272.8), rgb(179, 195, 255).
Aa
Black text reads best on this color (12.16:1).
About this color
#B3C3FF is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.086 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.021 away. Black text reads best on it, at 12.16:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.16:1 |
| White text | 1.72:1 |
Values
| HEX | #B3C3FF |
| RGB | rgb(179, 195, 255) |
| HSL | hsl(227, 100%, 85%) |
| OKLCH | oklch(82.6% 0.086 272.8) |
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 #B3C3FF | 1.72:1 | Fails | Lc -35.0 | Non-text elements, placeholder text |
| Black text on #B3C3FF | 12.16:1 | AAA | Lc 72.7 | Content text, not long reading |
| #B3C3FF text on white | 1.72:1 | Fails | Lc 31.2 | Non-text elements, placeholder text |
| #B3C3FF text on black | 12.16:1 | AAA | Lc -71.6 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8FA
oklch(88.5% 0.048 272.4)
-
Step 300
300 (this color)
#B3C3FF
oklch(82.6% 0.086 272.8)
-
Step 400
400
#8499F6
oklch(70.6% 0.138 272.8)
-
Step 500
500
#687DF3
oklch(63.2% 0.177 272.8)
-
Step 600
600
#5262E1
oklch(55.5% 0.192 273)
-
Step 700
700
#4350C4
oklch(49.1% 0.18 273)
-
Step 800
800
#37439E
oklch(42.8% 0.147 272.9)
-
Step 900
900
#2F397E
oklch(37.7% 0.116 273.3)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#B3C3FF 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) | #B1C8FF | 0.013 |
| Deuteranopia (no green cones) | #ABC2FE | 0.011 |
| Tritanopia (no blue cones) | #9FCED8 | 0.076 |
| Achromatopsia (no color) | #C5C5C5 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3C3FF
#B3C3FF
oklch(82.6% 0.086 272.8)
- #D9C584
#D9C584
oklch(82.5% 0.087 93)
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 #B3C3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.021
- Pastel Blue #A2BFFE ΔE 0.025
- Baby Blue #A2CFFE ΔE 0.036
- Light Steel Blue #B0C4DE ΔE 0.049
- Light Blue Grey #B7C9E2 ΔE 0.049
- Cloudy Blue #ACC2D9 ΔE 0.056
- Light Sky Blue #87CEFA ΔE 0.057
- Sky #82CAFC ΔE 0.057
Use #B3C3FF 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.