#B9D9FF
Closest named color: Light Blue (#ADD8E6). oklch(87.5% 0.063 252.9), rgb(185, 217, 255).
Aa
Black text reads best on this color (14.43:1).
About this color
#B9D9FF is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.063 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.039 away. Black text reads best on it, at 14.43:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.43:1 |
| White text | 1.45:1 |
Values
| HEX | #B9D9FF |
| RGB | rgb(185, 217, 255) |
| HSL | hsl(213, 100%, 86%) |
| OKLCH | oklch(87.5% 0.063 252.9) |
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 #B9D9FF | 1.45:1 | Fails | Lc -24.6 | Dividers and decoration only |
| Black text on #B9D9FF | 14.43:1 | AAA | Lc 82.1 | Fine for body text |
| #B9D9FF text on white | 1.45:1 | Fails | Lc 21.6 | Dividers and decoration only |
| #B9D9FF text on black | 14.43:1 | AAA | Lc -81.7 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200 (this color)
#B9D9FF
oklch(87.5% 0.063 252.9)
-
Step 300
300
#9CC4F4
oklch(80.9% 0.081 253.3)
-
Step 400
400
#62A4EF
oklch(70.7% 0.13 252.8)
-
Step 500
500
#308BEA
oklch(63.1% 0.166 252.9)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#0A4279
oklch(37.8% 0.108 253.1)
-
Step 950
950
#092747
oklch(27% 0.069 253.1)
#B9D9FF 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) | #CBDAFF | 0.023 |
| Deuteranopia (no green cones) | #C3D3FE | 0.018 |
| Tritanopia (no blue cones) | #A5E1E5 | 0.054 |
| Achromatopsia (no color) | #D6D6D6 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9D9FF
#B9D9FF
oklch(87.5% 0.063 252.9)
- #F0D0A9
#F0D0A9
oklch(87.5% 0.063 72.4)
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 #B9D9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.040
- Powder Blue #B0E0E6 ΔE 0.047
- Light Periwinkle #C1C6FC ΔE 0.049
- Light Blue Grey #B7C9E2 ΔE 0.050
- Cadet Gray #CED4DA ΔE 0.053
- Celeste #A8DADC ΔE 0.057
- Light Gray #D3D3D3 ΔE 0.063
Use #B9D9FF 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.