#BBC1EF
Closest named color: Light Periwinkle (#C1C6FC). oklch(82.2% 0.065 279), rgb(187, 193, 239).
Aa
Black text reads best on this color (11.98:1).
About this color
#BBC1EF is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.065 and its hue 279°. 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 11.98:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 11.98:1 |
| White text | 1.75:1 |
Values
| HEX | #BBC1EF |
| RGB | rgb(187, 193, 239) |
| HSL | hsl(233, 62%, 84%) |
| OKLCH | oklch(82.2% 0.065 279) |
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 #BBC1EF | 1.75:1 | Fails | Lc -35.9 | Non-text elements, placeholder text |
| Black text on #BBC1EF | 11.98:1 | AAA | Lc 71.9 | Content text, not long reading |
| #BBC1EF text on white | 1.75:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #BBC1EF text on black | 11.98:1 | AAA | Lc -70.7 | 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
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D3D7F1
oklch(88.4% 0.036 278.7)
-
Step 300
300 (this color)
#BBC1EF
oklch(82.2% 0.065 279)
-
Step 400
400
#939AE1
oklch(70.8% 0.104 279.1)
-
Step 500
500
#797FD8
oklch(63.1% 0.133 278.9)
-
Step 600
600
#6367C5
oklch(55.7% 0.143 278.8)
-
Step 700
700
#5255AB
oklch(49.2% 0.135 278.7)
-
Step 800
800
#43468A
oklch(42.7% 0.111 278.7)
-
Step 900
900
#383B6E
oklch(37.6% 0.086 278.8)
-
Step 950
950
#212341
oklch(27% 0.055 279.1)
#BBC1EF 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) | #B5C6F1 | 0.014 |
| Deuteranopia (no green cones) | #B2C2EE | 0.012 |
| Tritanopia (no blue cones) | #AFC9D0 | 0.058 |
| Achromatopsia (no color) | #C4C4C4 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC1EF
#BBC1EF
oklch(82.2% 0.065 279)
- #CFC696
#CFC696
oklch(82.2% 0.064 98.7)
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 #BBC1EF, 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 Steel Blue #B0C4DE ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.033
- Pastel Blue #A2BFFE ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.040
- Baby Blue #A2CFFE ΔE 0.044
- Thistle #D8BFD8 ΔE 0.049
- Light Violet #D6B4FC ΔE 0.055
Use #BBC1EF 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.