#B9CAEF
Closest named color: Light Blue Grey (#B7C9E2). oklch(83.8% 0.055 265.7), rgb(185, 202, 239).
Aa
Black text reads best on this color (12.75:1).
About this color
#B9CAEF is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.055 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.019 away. Black text reads best on it, at 12.75:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.75:1 |
| White text | 1.64:1 |
Values
| HEX | #B9CAEF |
| RGB | rgb(185, 202, 239) |
| HSL | hsl(221, 63%, 83%) |
| OKLCH | oklch(83.8% 0.055 265.7) |
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 #B9CAEF | 1.64:1 | Fails | Lc -32.3 | Non-text elements, placeholder text |
| Black text on #B9CAEF | 12.75:1 | AAA | Lc 75.2 | Fine for body text |
| #B9CAEF text on white | 1.64:1 | Fails | Lc 28.6 | Dividers and decoration only |
| #B9CAEF text on black | 12.75:1 | AAA | Lc -74.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#CFD9EE
oklch(88.4% 0.031 265.3)
-
Step 300
300 (this color)
#B9CAEF
oklch(83.8% 0.055 265.7)
-
Step 400
400
#86A0D8
oklch(70.7% 0.088 265)
-
Step 500
500
#6987CE
oklch(63.1% 0.113 265.9)
-
Step 600
600
#5170BB
oklch(55.7% 0.122 265.7)
-
Step 700
700
#415DA1
oklch(49% 0.114 265.5)
-
Step 800
800
#364C83
oklch(42.7% 0.096 266)
-
Step 900
900
#2F4069
oklch(37.8% 0.074 265.9)
-
Step 950
950
#1B263D
oklch(27% 0.046 264.1)
#B9CAEF 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) | #BFCCF1 | 0.010 |
| Deuteranopia (no green cones) | #BAC7EE | 0.008 |
| Tritanopia (no blue cones) | #ABD1D6 | 0.049 |
| Achromatopsia (no color) | #CACACA | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9CAEF
#B9CAEF
oklch(83.8% 0.055 265.7)
- #DAC8A2
#DAC8A2
oklch(83.8% 0.054 85.6)
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 #B9CAEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.019
- Light Periwinkle #C1C6FC ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.029
- Baby Blue #A2CFFE ΔE 0.032
- Cloudy Blue #ACC2D9 ΔE 0.039
- Light Blue #ADD8E6 ΔE 0.045
- Thistle #D8BFD8 ΔE 0.051
- Pastel Blue #A2BFFE ΔE 0.051
Use #B9CAEF 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.