#B9D9FA
Closest named color: Light Blue (#ADD8E6). oklch(87.3% 0.057 249.3), rgb(185, 217, 250).
Aa
Black text reads best on this color (14.36:1).
About this color
#B9D9FA is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.057 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.033 away. Black text reads best on it, at 14.36:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 14.36:1 |
| White text | 1.46:1 |
Values
| HEX | #B9D9FA |
| RGB | rgb(185, 217, 250) |
| HSL | hsl(210, 87%, 85%) |
| OKLCH | oklch(87.3% 0.057 249.3) |
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 #B9D9FA | 1.46:1 | Fails | Lc -24.9 | Dividers and decoration only |
| Black text on #B9D9FA | 14.36:1 | AAA | Lc 81.8 | Fine for body text |
| #B9D9FA text on white | 1.46:1 | Fails | Lc 21.9 | Dividers and decoration only |
| #B9D9FA text on black | 14.36:1 | AAA | Lc -81.4 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200 (this color)
#B9D9FA
oklch(87.3% 0.057 249.3)
-
Step 300
300
#9CC5EF
oklch(80.9% 0.074 249.4)
-
Step 400
400
#63A6E7
oklch(70.8% 0.118 249.1)
-
Step 500
500
#308EE0
oklch(63.2% 0.151 249.2)
-
Step 600
600
#0076C9
oklch(55.6% 0.155 249.4)
-
Step 700
700
#0063AA
oklch(49.1% 0.137 249.4)
-
Step 800
800
#00518C
oklch(42.7% 0.118 249.2)
-
Step 900
900
#094473
oklch(37.8% 0.098 249)
-
Step 950
950
#092843
oklch(27% 0.062 248.7)
#B9D9FA 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) | #CDD9FC | 0.025 |
| Deuteranopia (no green cones) | #C5D2F9 | 0.022 |
| Tritanopia (no blue cones) | #A7E0E4 | 0.047 |
| Achromatopsia (no color) | #D5D5D5 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9D9FA
#B9D9FA
oklch(87.3% 0.057 249.3)
- #EECFAD
#EECFAD
oklch(87.2% 0.057 69.6)
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 #B9D9FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.040
- Baby Blue #A2CFFE ΔE 0.042
- Light Blue Grey #B7C9E2 ΔE 0.046
- Cadet Gray #CED4DA ΔE 0.047
- Celeste #A8DADC ΔE 0.050
- Light Periwinkle #C1C6FC ΔE 0.051
- Light Gray #D3D3D3 ΔE 0.057
Use #B9D9FA 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.