#BBC4EE
Closest named color: Light Periwinkle (#C1C6FC). oklch(82.7% 0.06 275.5), rgb(187, 196, 238).
Aa
Black text reads best on this color (12.24:1).
About this color
#BBC4EE is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.060 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.022 away. Black text reads best on it, at 12.24:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.24:1 |
| White text | 1.71:1 |
Values
| HEX | #BBC4EE |
| RGB | rgb(187, 196, 238) |
| HSL | hsl(229, 60%, 83%) |
| OKLCH | oklch(82.7% 0.06 275.5) |
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 #BBC4EE | 1.71:1 | Fails | Lc -34.7 | Non-text elements, placeholder text |
| Black text on #BBC4EE | 12.24:1 | AAA | Lc 73.0 | Content text, not long reading |
| #BBC4EE text on white | 1.71:1 | Fails | Lc 30.9 | Non-text elements, placeholder text |
| #BBC4EE text on black | 12.24:1 | AAA | Lc -71.9 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F0
oklch(88.5% 0.034 274.5)
-
Step 300
300 (this color)
#BBC4EE
oklch(82.7% 0.06 275.5)
-
Step 400
400
#909CDC
oklch(70.8% 0.095 275.6)
-
Step 500
500
#7582D3
oklch(63.1% 0.122 275.4)
-
Step 600
600
#5F6AC0
oklch(55.6% 0.133 275.7)
-
Step 700
700
#4E58A6
oklch(49.1% 0.124 275.4)
-
Step 800
800
#404886
oklch(42.6% 0.102 275.6)
-
Step 900
900
#363D6B
oklch(37.7% 0.079 275.4)
-
Step 950
950
#20243F
oklch(27.1% 0.05 276.1)
#BBC4EE 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) | #B8C8F0 | 0.010 |
| Deuteranopia (no green cones) | #B5C4ED | 0.008 |
| Tritanopia (no blue cones) | #AFCCD2 | 0.054 |
| Achromatopsia (no color) | #C6C6C6 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC4EE
#BBC4EE
oklch(82.7% 0.06 275.5)
- #D2C79B
#D2C79B
oklch(82.8% 0.06 95.7)
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 #BBC4EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.022
- Light Blue Grey #B7C9E2 ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.037
- Baby Blue #A2CFFE ΔE 0.040
- Pastel Blue #A2BFFE ΔE 0.043
- Thistle #D8BFD8 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.056
Use #BBC4EE 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.