#B4BDDF
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.3% 0.049 273.6), rgb(180, 189, 223).
Aa
Black text reads best on this color (11.28:1).
About this color
#B4BDDF is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.049 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.020 away. Black text reads best on it, at 11.28:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.28:1 |
| White text | 1.86:1 |
Values
| HEX | #B4BDDF |
| RGB | rgb(180, 189, 223) |
| HSL | hsl(227, 40%, 79%) |
| OKLCH | oklch(80.3% 0.049 273.6) |
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 #B4BDDF | 1.86:1 | Fails | Lc -39.3 | Non-text elements, placeholder text |
| Black text on #B4BDDF | 11.28:1 | AAA | Lc 68.8 | Content text, not long reading |
| #B4BDDF text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #B4BDDF text on black | 11.28:1 | AAA | Lc -67.4 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300 (this color)
#B4BDDF
oklch(80.3% 0.049 273.6)
-
Step 400
400
#919ED2
oklch(70.8% 0.078 273.4)
-
Step 500
500
#7685C6
oklch(63.1% 0.1 273.3)
-
Step 600
600
#5F6DB3
oklch(55.5% 0.11 273.7)
-
Step 700
700
#4F5B9A
oklch(49.1% 0.102 273.9)
-
Step 800
800
#404B7D
oklch(42.7% 0.084 273)
-
Step 900
900
#363F64
oklch(37.7% 0.065 272.6)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#B4BDDF 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) | #B4C0E1 | 0.008 |
| Deuteranopia (no green cones) | #B1BCDE | 0.005 |
| Tritanopia (no blue cones) | #AAC3C8 | 0.044 |
| Achromatopsia (no color) | #BEBEBE | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4BDDF
#B4BDDF
oklch(80.3% 0.049 273.6)
- #C9BF9B
#C9BF9B
oklch(80.4% 0.05 94.3)
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 #B4BDDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.020
- Cloudy Blue #ACC2D9 ΔE 0.021
- Light Blue Grey #B7C9E2 ΔE 0.032
- Light Grey Blue #9DBCD4 ΔE 0.035
- Light Cornflower Blue #98C1D9 ΔE 0.038
- Light Periwinkle #C1C6FC ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.047
- Silver #C0C0C0 ΔE 0.049
Use #B4BDDF 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.