#B3CAFA
Closest named color: Light Periwinkle (#C1C6FC). oklch(83.8% 0.072 264.8), rgb(179, 202, 250).
Aa
Black text reads best on this color (12.74:1).
About this color
#B3CAFA is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.072 and its hue 265°. 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 12.74:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.74:1 |
| White text | 1.64:1 |
Values
| HEX | #B3CAFA |
| RGB | rgb(179, 202, 250) |
| HSL | hsl(221, 88%, 84%) |
| OKLCH | oklch(83.8% 0.072 264.8) |
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 #B3CAFA | 1.64:1 | Fails | Lc -32.3 | Non-text elements, placeholder text |
| Black text on #B3CAFA | 12.74:1 | AAA | Lc 75.1 | Fine for body text |
| #B3CAFA text on white | 1.64:1 | Fails | Lc 28.7 | Dividers and decoration only |
| #B3CAFA text on black | 12.74:1 | AAA | Lc -74.2 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCD9F4
oklch(88.4% 0.04 265.1)
-
Step 300
300 (this color)
#B3CAFA
oklch(83.8% 0.072 264.8)
-
Step 400
400
#7D9FE9
oklch(70.7% 0.115 264.8)
-
Step 500
500
#5D85E2
oklch(63.1% 0.147 265)
-
Step 600
600
#446DD0
oklch(55.7% 0.16 264.8)
-
Step 700
700
#365AB4
oklch(49.1% 0.149 265)
-
Step 800
800
#2D4A92
oklch(42.7% 0.124 265.1)
-
Step 900
900
#283F74
oklch(37.8% 0.095 264.6)
-
Step 950
950
#172544
oklch(27% 0.061 264.4)
#B3CAFA 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) | #BBCDFC | 0.014 |
| Deuteranopia (no green cones) | #B4C7F9 | 0.008 |
| Tritanopia (no blue cones) | #A0D4DA | 0.065 |
| Achromatopsia (no color) | #C9C9C9 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3CAFA
#B3CAFA
oklch(83.8% 0.072 264.8)
- #E0C794
#E0C794
oklch(83.9% 0.072 84.8)
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 #B3CAFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.021
- Baby Blue #A2CFFE ΔE 0.022
- Light Blue Grey #B7C9E2 ΔE 0.034
- Light Steel Blue #B0C4DE ΔE 0.039
- Pastel Blue #A2BFFE ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.048
- Light Sky Blue #87CEFA ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.054
Use #B3CAFA 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.