#B9D4EF
Closest named color: Light Blue (#ADD8E6). oklch(85.9% 0.048 248.4), rgb(185, 212, 239).
Aa
Black text reads best on this color (13.72:1).
About this color
#B9D4EF is a light, muted blue. In OKLCH its lightness is 86%, its chroma 0.048 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.024 away. Black text reads best on it, at 13.72:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.72:1 |
| White text | 1.52:1 |
Values
| HEX | #B9D4EF |
| RGB | rgb(185, 212, 239) |
| HSL | hsl(210, 63%, 83%) |
| OKLCH | oklch(85.9% 0.048 248.4) |
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 #B9D4EF | 1.52:1 | Fails | Lc -27.8 | Dividers and decoration only |
| Black text on #B9D4EF | 13.72:1 | AAA | Lc 79.2 | Fine for body text |
| #B9D4EF text on white | 1.52:1 | Fails | Lc 24.5 | Dividers and decoration only |
| #B9D4EF text on black | 13.72:1 | AAA | Lc -78.6 | 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
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200 (this color)
#B9D4EF
oklch(85.9% 0.048 248.4)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400
#6EA6DB
oklch(70.7% 0.098 248)
-
Step 500
500
#458ED1
oklch(63% 0.125 248.7)
-
Step 600
600
#2077BE
oklch(55.5% 0.136 248.4)
-
Step 700
700
#1064A4
oklch(49.1% 0.126 248.3)
-
Step 800
800
#135285
oklch(42.8% 0.104 248.3)
-
Step 900
900
#18446B
oklch(37.7% 0.082 248.7)
-
Step 950
950
#10283E
oklch(27% 0.051 248.4)
#B9D4EF 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) | #CAD4F0 | 0.022 |
| Deuteranopia (no green cones) | #C3CEEE | 0.019 |
| Tritanopia (no blue cones) | #AADADD | 0.039 |
| Achromatopsia (no color) | #D1D1D1 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9D4EF
#B9D4EF
oklch(85.9% 0.048 248.4)
- #E6CCB0
#E6CCB0
oklch(86% 0.048 69.2)
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 #B9D4EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.024
- Light Blue Grey #B7C9E2 ΔE 0.030
- Cadet Gray #CED4DA ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.039
- Celeste #A8DADC ΔE 0.042
- Light Steel Blue #B0C4DE ΔE 0.046
- Light Periwinkle #C1C6FC ΔE 0.047
Use #B9D4EF 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.