#B5CBFB
Closest named color: Light Periwinkle (#C1C6FC). oklch(84.2% 0.072 265.6), rgb(181, 203, 251).
Aa
Black text reads best on this color (12.90:1).
About this color
#B5CBFB is a light, moderately saturated blue. In OKLCH its lightness is 84%, its chroma 0.072 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.020 away. Black text reads best on it, at 12.90:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.90:1 |
| White text | 1.62:1 |
Values
| HEX | #B5CBFB |
| RGB | rgb(181, 203, 251) |
| HSL | hsl(221, 90%, 85%) |
| OKLCH | oklch(84.2% 0.072 265.6) |
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 #B5CBFB | 1.62:1 | Fails | Lc -31.6 | Non-text elements, placeholder text |
| Black text on #B5CBFB | 12.90:1 | AAA | Lc 75.8 | Fine for body text |
| #B5CBFB text on white | 1.62:1 | Fails | Lc 28.0 | Dividers and decoration only |
| #B5CBFB text on black | 12.90:1 | AAA | Lc -74.9 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F4
oklch(88.5% 0.039 266.5)
-
Step 300
300 (this color)
#B5CBFB
oklch(84.2% 0.072 265.6)
-
Step 400
400
#7E9FE8
oklch(70.8% 0.114 265.1)
-
Step 500
500
#5F85E2
oklch(63.2% 0.147 265.7)
-
Step 600
600
#466CCF
oklch(55.5% 0.159 265.7)
-
Step 700
700
#385AB4
oklch(49.2% 0.148 265.6)
-
Step 800
800
#2E4A91
oklch(42.7% 0.122 265.4)
-
Step 900
900
#293E74
oklch(37.6% 0.096 266)
-
Step 950
950
#182544
oklch(27% 0.061 265.4)
#B5CBFB 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) | #BCCEFD | 0.013 |
| Deuteranopia (no green cones) | #B5C8FA | 0.008 |
| Tritanopia (no blue cones) | #A2D5DB | 0.065 |
| Achromatopsia (no color) | #CBCBCB | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5CBFB
#B5CBFB
oklch(84.2% 0.072 265.6)
- #E0C896
#E0C896
oklch(84.1% 0.071 85.2)
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 #B5CBFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.020
- Baby Blue #A2CFFE ΔE 0.023
- Light Blue Grey #B7C9E2 ΔE 0.035
- Light Steel Blue #B0C4DE ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.043
- Cloudy Blue #ACC2D9 ΔE 0.051
- Light Sky Blue #87CEFA ΔE 0.052
- Light Blue #ADD8E6 ΔE 0.053
Use #B5CBFB 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.