#BBC1EC
Closest named color: Light Periwinkle (#C1C6FC). oklch(82.1% 0.061 278.7), rgb(187, 193, 236).
Aa
Black text reads best on this color (11.95:1).
About this color
#BBC1EC is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.061 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.025 away. Black text reads best on it, at 11.95:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 11.95:1 |
| White text | 1.75:1 |
Values
| HEX | #BBC1EC |
| RGB | rgb(187, 193, 236) |
| HSL | hsl(233, 56%, 83%) |
| OKLCH | oklch(82.1% 0.061 278.7) |
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 #BBC1EC | 1.75:1 | Fails | Lc -36.1 | Non-text elements, placeholder text |
| Black text on #BBC1EC | 11.95:1 | AAA | Lc 71.7 | Content text, not long reading |
| #BBC1EC text on white | 1.75:1 | Fails | Lc 32.1 | Non-text elements, placeholder text |
| #BBC1EC text on black | 11.95:1 | AAA | Lc -70.6 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D4D7F0
oklch(88.5% 0.034 280.2)
-
Step 300
300 (this color)
#BBC1EC
oklch(82.1% 0.061 278.7)
-
Step 400
400
#939ADD
oklch(70.6% 0.098 279)
-
Step 500
500
#7A80D3
oklch(63.1% 0.124 279.1)
-
Step 600
600
#6368C0
oklch(55.5% 0.135 278.6)
-
Step 700
700
#5356A6
oklch(49.1% 0.126 279.1)
-
Step 800
800
#434786
oklch(42.7% 0.103 278.3)
-
Step 900
900
#393C6C
oklch(37.8% 0.081 279)
-
Step 950
950
#21233F
oklch(26.9% 0.052 279.2)
#BBC1EC 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) | #B6C5EE | 0.011 |
| Deuteranopia (no green cones) | #B3C2EB | 0.011 |
| Tritanopia (no blue cones) | #B0C9CF | 0.055 |
| Achromatopsia (no color) | #C3C3C3 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC1EC
#BBC1EC
oklch(82.1% 0.061 278.7)
- #CEC698
#CEC698
oklch(82.2% 0.062 99.3)
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 #BBC1EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.025
- Light Steel Blue #B0C4DE ΔE 0.028
- Light Blue Grey #B7C9E2 ΔE 0.030
- Cloudy Blue #ACC2D9 ΔE 0.036
- Pastel Blue #A2BFFE ΔE 0.041
- Baby Blue #A2CFFE ΔE 0.045
- Thistle #D8BFD8 ΔE 0.046
- Light Cornflower Blue #98C1D9 ΔE 0.054
Use #BBC1EC 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.