#B1C8FA
Closest named color: Light Periwinkle (#C1C6FC). oklch(83.3% 0.075 265.5), rgb(177, 200, 250).
Aa
Black text reads best on this color (12.51:1).
About this color
#B1C8FA is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.075 and its hue 266°. 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 12.51:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.51:1 |
| White text | 1.67:1 |
Values
| HEX | #B1C8FA |
| RGB | rgb(177, 200, 250) |
| HSL | hsl(221, 88%, 84%) |
| OKLCH | oklch(83.3% 0.075 265.5) |
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 #B1C8FA | 1.67:1 | Fails | Lc -33.4 | Non-text elements, placeholder text |
| Black text on #B1C8FA | 12.51:1 | AAA | Lc 74.1 | Content text, not long reading |
| #B1C8FA text on white | 1.67:1 | Fails | Lc 29.7 | Dividers and decoration only |
| #B1C8FA text on black | 12.51:1 | AAA | Lc -73.2 | 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
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F6
oklch(88.5% 0.042 266.3)
-
Step 300
300 (this color)
#B1C8FA
oklch(83.3% 0.075 265.5)
-
Step 400
400
#7D9EEC
oklch(70.7% 0.121 265.9)
-
Step 500
500
#5C84E5
oklch(63% 0.153 265.4)
-
Step 600
600
#436BD3
oklch(55.5% 0.166 265.5)
-
Step 700
700
#3659B7
oklch(49.1% 0.154 265.6)
-
Step 800
800
#2C4994
oklch(42.6% 0.128 265.4)
-
Step 900
900
#283E76
oklch(37.7% 0.1 265.7)
-
Step 950
950
#172545
oklch(27% 0.063 264.7)
#B1C8FA 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) | #B8CBFC | 0.013 |
| Deuteranopia (no green cones) | #B1C5F9 | 0.008 |
| Tritanopia (no blue cones) | #9DD2D9 | 0.067 |
| Achromatopsia (no color) | #C8C8C8 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1C8FA
#B1C8FA
oklch(83.3% 0.075 265.5)
- #DEC590
#DEC590
oklch(83.2% 0.075 85.5)
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 #B1C8FA, 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 0.023
- Pastel Blue #A2BFFE ΔE 0.034
- Light Blue Grey #B7C9E2 ΔE 0.036
- Light Steel Blue #B0C4DE ΔE 0.039
- Cloudy Blue #ACC2D9 ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.048
- Sky #82CAFC ΔE 0.052
Use #B1C8FA 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.