#B5C5FA
Closest named color: Light Periwinkle (#C1C6FC). oklch(83% 0.077 271.6), rgb(181, 197, 250).
Aa
Black text reads best on this color (12.33:1).
About this color
#B5C5FA is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.077 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Light Periwinkle (#C1C6FC), ΔE 0.017 away. Black text reads best on it, at 12.33:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Light Periwinkle (#C1C6FC) |
| Black text | 12.33:1 |
| White text | 1.70:1 |
Values
| HEX | #B5C5FA |
| RGB | rgb(181, 197, 250) |
| HSL | hsl(226, 87%, 85%) |
| OKLCH | oklch(83% 0.077 271.6) |
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 #B5C5FA | 1.70:1 | Fails | Lc -34.3 | Non-text elements, placeholder text |
| Black text on #B5C5FA | 12.33:1 | AAA | Lc 73.4 | Content text, not long reading |
| #B5C5FA text on white | 1.70:1 | Fails | Lc 30.5 | Non-text elements, placeholder text |
| #B5C5FA text on black | 12.33:1 | AAA | Lc -72.3 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300 (this color)
#B5C5FA
oklch(83% 0.077 271.6)
-
Step 400
400
#859BED
oklch(70.6% 0.123 271.5)
-
Step 500
500
#6980E7
oklch(63.1% 0.156 271.8)
-
Step 600
600
#5267D5
oklch(55.6% 0.17 271.7)
-
Step 700
700
#4355B9
oklch(49.1% 0.158 271.7)
-
Step 800
800
#374696
oklch(42.7% 0.132 271.7)
-
Step 900
900
#2F3C77
oklch(37.8% 0.101 271.4)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#B5C5FA 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) | #B5C9FC | 0.010 |
| Deuteranopia (no green cones) | #B0C4F9 | 0.007 |
| Tritanopia (no blue cones) | #A3CFD7 | 0.069 |
| Achromatopsia (no color) | #C6C6C6 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5C5FA
#B5C5FA
oklch(83% 0.077 271.6)
- #D9C68E
#D9C68E
oklch(82.9% 0.076 91.5)
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 #B5C5FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Periwinkle #C1C6FC ΔE 0.017
- Pastel Blue #A2BFFE ΔE 0.031
- Baby Blue #A2CFFE ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.039
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.049
- Light Sky Blue #87CEFA ΔE 0.055
- Sky #82CAFC ΔE 0.057
Use #B5C5FA 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.