#B9CEFF
Closest named color: Light Periwinkle (#C1C6FC). oklch(85.2% 0.072 266.7), rgb(185, 206, 255).
Aa
Black text reads best on this color (13.33:1).
About this color
#B9CEFF is a light, moderately saturated blue. In OKLCH its lightness is 85%, its chroma 0.072 and its hue 267°. 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 13.33:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 13.33:1 |
| White text | 1.57:1 |
Values
| HEX | #B9CEFF |
| RGB | rgb(185, 206, 255) |
| HSL | hsl(222, 100%, 86%) |
| OKLCH | oklch(85.2% 0.072 266.7) |
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 #B9CEFF | 1.57:1 | Fails | Lc -29.6 | Dividers and decoration only |
| Black text on #B9CEFF | 13.33:1 | AAA | Lc 77.6 | Fine for body text |
| #B9CEFF text on white | 1.57:1 | Fails | Lc 26.2 | Dividers and decoration only |
| #B9CEFF text on black | 13.33:1 | AAA | Lc -76.9 | Fine for body text |
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 200.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200 (this color)
#B9CEFF
oklch(85.2% 0.072 266.7)
-
Step 300
300
#A5BFFE
oklch(80.8% 0.094 267)
-
Step 400
400
#769CFD
oklch(70.8% 0.148 266.5)
-
Step 500
500
#557FFB
oklch(63.1% 0.19 266.8)
-
Step 600
600
#3C64EA
oklch(55.5% 0.207 266.7)
-
Step 700
700
#2F52CC
oklch(49.1% 0.193 266.7)
-
Step 800
800
#2744A5
oklch(42.7% 0.16 266.7)
-
Step 900
900
#233B82
oklch(37.7% 0.123 266.4)
-
Step 950
950
#15234C
oklch(27% 0.078 266.9)
#B9CEFF 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) | #BFD1FF | 0.012 |
| Deuteranopia (no green cones) | #B8CBFE | 0.008 |
| Tritanopia (no blue cones) | #A6D8DE | 0.066 |
| Achromatopsia (no color) | #CECECE | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9CEFF
#B9CEFF
oklch(85.2% 0.072 266.7)
- #E3CC98
#E3CC98
oklch(85.2% 0.073 86.9)
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 #B9CEFF, 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 0.028
- Light Blue Grey #B7C9E2 ΔE 0.040
- Light Steel Blue #B0C4DE ΔE 0.050
- Pastel Blue #A2BFFE ΔE 0.052
- Light Blue #ADD8E6 ΔE 0.053
- Light Lavender #DFC5FE ΔE 0.053
- Pale Lilac #E4CBFF ΔE 0.057
Use #B9CEFF 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.