#B4BCD5
Closest named color: Cloudy Blue (#ACC2D9). oklch(79.7% 0.036 271.5), rgb(180, 188, 213).
Aa
Black text reads best on this color (11.09:1).
About this color
#B4BCD5 is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.036 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.017 away. Black text reads best on it, at 11.09:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.09:1 |
| White text | 1.89:1 |
Values
| HEX | #B4BCD5 |
| RGB | rgb(180, 188, 213) |
| HSL | hsl(225, 28%, 77%) |
| OKLCH | oklch(79.7% 0.036 271.5) |
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 #B4BCD5 | 1.89:1 | Fails | Lc -40.3 | Non-text elements, placeholder text |
| Black text on #B4BCD5 | 11.09:1 | AAA | Lc 67.9 | Content text, not long reading |
| #B4BCD5 text on white | 1.89:1 | Fails | Lc 36.0 | Non-text elements, placeholder text |
| #B4BCD5 text on black | 11.09:1 | AAA | Lc -66.5 | 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
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300 (this color)
#B4BCD5
oklch(79.7% 0.036 271.5)
-
Step 400
400
#939FC6
oklch(70.7% 0.059 271.5)
-
Step 500
500
#7987B7
oklch(63.1% 0.074 271.6)
-
Step 600
600
#6270A3
oklch(55.5% 0.081 271.8)
-
Step 700
700
#515E8C
oklch(49.1% 0.076 271.3)
-
Step 800
800
#434D71
oklch(42.7% 0.061 271.7)
-
Step 900
900
#38405C
oklch(37.7% 0.049 271.6)
-
Step 950
950
#212636
oklch(27.1% 0.031 270.8)
#B4BCD5 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) | #B5BED6 | 0.005 |
| Deuteranopia (no green cones) | #B3BBD4 | 0.003 |
| Tritanopia (no blue cones) | #ADC1C4 | 0.033 |
| Achromatopsia (no color) | #BCBCBC | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BCD5
#B4BCD5
oklch(79.7% 0.036 271.5)
- #C5BCA3
#C5BCA3
oklch(79.6% 0.036 90.5)
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 #B4BCD5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.017
- Light Steel Blue #B0C4DE ΔE 0.021
- Light Grey Blue #9DBCD4 ΔE 0.030
- Light Blue Grey #B7C9E2 ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.035
- French Gray #ADB5BD ΔE 0.037
- Silver #C0C0C0 ΔE 0.038
- Thistle #D8BFD8 ΔE 0.052
Use #B4BCD5 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.