#BBC4F9
Closest named color: Light Periwinkle (#C1C6FC). oklch(83.2% 0.075 277.1), rgb(187, 196, 249).
Aa
Black text reads best on this color (12.37:1).
About this color
#BBC4F9 is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.075 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.011 away. Black text reads best on it, at 12.37:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.37:1 |
| White text | 1.69:1 |
Values
| HEX | #BBC4F9 |
| RGB | rgb(187, 196, 249) |
| HSL | hsl(231, 84%, 85%) |
| OKLCH | oklch(83.2% 0.075 277.1) |
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 #BBC4F9 | 1.69:1 | Fails | Lc -34.1 | Non-text elements, placeholder text |
| Black text on #BBC4F9 | 12.37:1 | AAA | Lc 73.6 | Content text, not long reading |
| #BBC4F9 text on white | 1.69:1 | Fails | Lc 30.3 | Non-text elements, placeholder text |
| #BBC4F9 text on black | 12.37:1 | AAA | Lc -72.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300 (this color)
#BBC4F9
oklch(83.2% 0.075 277.1)
-
Step 400
400
#8E99EB
oklch(70.8% 0.12 277)
-
Step 500
500
#747DE4
oklch(63.1% 0.153 277.3)
-
Step 600
600
#5E64D2
oklch(55.6% 0.166 277.2)
-
Step 700
700
#4E52B6
oklch(49.1% 0.155 277.3)
-
Step 800
800
#404493
oklch(42.7% 0.128 277.4)
-
Step 900
900
#353A75
oklch(37.6% 0.1 276.8)
-
Step 950
950
#1F2245
oklch(26.9% 0.064 277.4)
#BBC4F9 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) | #B5C9FB | 0.014 |
| Deuteranopia (no green cones) | #B1C5F8 | 0.013 |
| Tritanopia (no blue cones) | #ACCED6 | 0.067 |
| Achromatopsia (no color) | #C7C7C7 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC4F9
#BBC4F9
oklch(83.2% 0.075 277.1)
- #D5C990
#D5C990
oklch(83.2% 0.076 97.7)
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 #BBC4F9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.011
- Pastel Blue #A2BFFE ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.038
- Light Blue Grey #B7C9E2 ΔE 0.040
- Light Steel Blue #B0C4DE ΔE 0.043
- Light Lavender #DFC5FE ΔE 0.051
- Cloudy Blue #ACC2D9 ΔE 0.051
- Light Violet #D6B4FC ΔE 0.054
Use #BBC4F9 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.