#B5D3EF
Closest named color: Light Blue (#ADD8E6). oklch(85.4% 0.051 246.6), rgb(181, 211, 239).
Aa
Black text reads best on this color (13.52:1).
About this color
#B5D3EF is a light, muted blue. In OKLCH its lightness is 85%, its chroma 0.051 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.023 away. Black text reads best on it, at 13.52:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.52:1 |
| White text | 1.55:1 |
Values
| HEX | #B5D3EF |
| RGB | rgb(181, 211, 239) |
| HSL | hsl(209, 64%, 82%) |
| OKLCH | oklch(85.4% 0.051 246.6) |
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 #B5D3EF | 1.55:1 | Fails | Lc -28.7 | Dividers and decoration only |
| Black text on #B5D3EF | 13.52:1 | AAA | Lc 78.4 | Fine for body text |
| #B5D3EF text on white | 1.55:1 | Fails | Lc 25.4 | Dividers and decoration only |
| #B5D3EF text on black | 13.52:1 | AAA | Lc -77.7 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200 (this color)
#B5D3EF
oklch(85.4% 0.051 246.6)
-
Step 300
300
#9FC5E9
oklch(80.8% 0.065 247.2)
-
Step 400
400
#68A7DE
oklch(70.8% 0.104 246.3)
-
Step 500
500
#398FD5
oklch(63.1% 0.134 246.8)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900
#10456D
oklch(37.8% 0.087 246.3)
-
Step 950
950
#0C2840
oklch(26.9% 0.056 247.6)
#B5D3EF 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) | #C8D3F0 | 0.024 |
| Deuteranopia (no green cones) | #C1CDEE | 0.020 |
| Tritanopia (no blue cones) | #A5DADC | 0.043 |
| Achromatopsia (no color) | #CFCFCF | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5D3EF
#B5D3EF
oklch(85.4% 0.051 246.6)
- #E6C9AD
#E6C9AD
oklch(85.3% 0.05 66.1)
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 #B5D3EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.023
- Light Blue Grey #B7C9E2 ΔE 0.027
- Baby Blue #A2CFFE ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.041
- Celeste #A8DADC ΔE 0.041
- Light Steel Blue #B0C4DE ΔE 0.042
- Cadet Gray #CED4DA ΔE 0.042
- Light Periwinkle #C1C6FC ΔE 0.046
Use #B5D3EF 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.