#B4BDD8
Closest named color: Cloudy Blue (#ACC2D9). oklch(80% 0.039 270.9), rgb(180, 189, 216).
Aa
Black text reads best on this color (11.21:1).
About this color
#B4BDD8 is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.039 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.016 away. Black text reads best on it, at 11.21:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.21:1 |
| White text | 1.87:1 |
Values
| HEX | #B4BDD8 |
| RGB | rgb(180, 189, 216) |
| HSL | hsl(225, 32%, 78%) |
| OKLCH | oklch(80% 0.039 270.9) |
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 #B4BDD8 | 1.87:1 | Fails | Lc -39.7 | Non-text elements, placeholder text |
| Black text on #B4BDD8 | 11.21:1 | AAA | Lc 68.4 | Content text, not long reading |
| #B4BDD8 text on white | 1.87:1 | Fails | Lc 35.5 | Non-text elements, placeholder text |
| #B4BDD8 text on black | 11.21:1 | AAA | Lc -67.1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300 (this color)
#B4BDD8
oklch(80% 0.039 270.9)
-
Step 400
400
#929FC9
oklch(70.7% 0.063 271.3)
-
Step 500
500
#7787BB
oklch(63.1% 0.081 270.8)
-
Step 600
600
#6070A7
oklch(55.6% 0.088 271)
-
Step 700
700
#4F5E8F
oklch(49.1% 0.081 270.3)
-
Step 800
800
#414D74
oklch(42.8% 0.067 270.3)
-
Step 900
900
#37405E
oklch(37.7% 0.053 270.9)
-
Step 950
950
#202637
oklch(27.1% 0.033 269.2)
#B4BDD8 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) | #B5BFD9 | 0.005 |
| Deuteranopia (no green cones) | #B3BCD7 | 0.003 |
| Tritanopia (no blue cones) | #ACC2C6 | 0.035 |
| Achromatopsia (no color) | #BDBDBD | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BDD8
#B4BDD8
oklch(80% 0.039 270.9)
- #C7BDA1
#C7BDA1
oklch(79.9% 0.04 90.7)
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 #B4BDD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.016
- Light Steel Blue #B0C4DE ΔE 0.018
- Light Grey Blue #9DBCD4 ΔE 0.031
- Light Blue Grey #B7C9E2 ΔE 0.032
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Silver #C0C0C0 ΔE 0.040
- French Gray #ADB5BD ΔE 0.041
- Thistle #D8BFD8 ΔE 0.051
Use #B4BDD8 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.