#B1BDEB
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.5% 0.067 273.4), rgb(177, 189, 235).
Aa
Black text reads best on this color (11.34:1).
About this color
#B1BDEB is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.067 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.031 away. Black text reads best on it, at 11.34:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.34:1 |
| White text | 1.85:1 |
Values
| HEX | #B1BDEB |
| RGB | rgb(177, 189, 235) |
| HSL | hsl(228, 59%, 81%) |
| OKLCH | oklch(80.5% 0.067 273.4) |
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 #B1BDEB | 1.85:1 | Fails | Lc -39.0 | Non-text elements, placeholder text |
| Black text on #B1BDEB | 11.34:1 | AAA | Lc 69.1 | Content text, not long reading |
| #B1BDEB text on white | 1.85:1 | Fails | Lc 34.8 | Non-text elements, placeholder text |
| #B1BDEB text on black | 11.34:1 | AAA | Lc -67.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300 (this color)
#B1BDEB
oklch(80.5% 0.067 273.4)
-
Step 400
400
#8B9CE3
oklch(70.8% 0.106 273.1)
-
Step 500
500
#7081DB
oklch(63% 0.136 273.8)
-
Step 600
600
#5969C9
oklch(55.6% 0.149 273.5)
-
Step 700
700
#4957AD
oklch(49.1% 0.137 273.4)
-
Step 800
800
#3C488C
oklch(42.8% 0.113 273.2)
-
Step 900
900
#333D70
oklch(37.8% 0.088 273.2)
-
Step 950
950
#1E2442
oklch(27.1% 0.056 273.5)
#B1BDEB 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) | #B0C1ED | 0.010 |
| Deuteranopia (no green cones) | #ACBCEA | 0.007 |
| Tritanopia (no blue cones) | #A3C6CC | 0.061 |
| Achromatopsia (no color) | #BEBEBE | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BDEB
#B1BDEB
oklch(80.5% 0.067 273.4)
- #CEBF8E
#CEBF8E
oklch(80.5% 0.067 93.1)
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 #B1BDEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.031
- Pastel Blue #A2BFFE ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.034
- Light Periwinkle #C1C6FC ΔE 0.038
- Light Blue Grey #B7C9E2 ΔE 0.040
- Light Grey Blue #9DBCD4 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Baby Blue #A2CFFE ΔE 0.048
Use #B1BDEB 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.