#B1BFDF
Closest named color: Light Steel Blue (#B0C4DE). oklch(80.4% 0.048 266.6), rgb(177, 191, 223).
Aa
Black text reads best on this color (11.38:1).
About this color
#B1BFDF is a light, muted blue. In OKLCH its lightness is 80%, its chroma 0.048 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.014 away. Black text reads best on it, at 11.38:1.
| Hue family | Blues |
| Lightness | light (80%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.38:1 |
| White text | 1.84:1 |
Values
| HEX | #B1BFDF |
| RGB | rgb(177, 191, 223) |
| HSL | hsl(222, 42%, 78%) |
| OKLCH | oklch(80.4% 0.048 266.6) |
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 #B1BFDF | 1.84:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #B1BFDF | 11.38:1 | AAA | Lc 69.2 | Content text, not long reading |
| #B1BFDF text on white | 1.84:1 | Fails | Lc 34.7 | Non-text elements, placeholder text |
| #B1BFDF text on black | 11.38:1 | AAA | Lc -67.9 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300 (this color)
#B1BFDF
oklch(80.4% 0.048 266.6)
-
Step 400
400
#8BA0D1
oklch(70.8% 0.076 266.5)
-
Step 500
500
#6E87C5
oklch(63% 0.098 266.8)
-
Step 600
600
#5770B2
oklch(55.5% 0.107 267.2)
-
Step 700
700
#475E99
oklch(49.1% 0.099 266.7)
-
Step 800
800
#3A4D7C
oklch(42.7% 0.082 266.3)
-
Step 900
900
#324064
oklch(37.7% 0.065 267.1)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#B1BFDF 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) | #B5C1E1 | 0.008 |
| Deuteranopia (no green cones) | #B1BDDE | 0.005 |
| Tritanopia (no blue cones) | #A6C5C9 | 0.043 |
| Achromatopsia (no color) | #BFBFBF | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1BFDF
#B1BFDF
oklch(80.4% 0.048 266.6)
- #CDBE9D
#CDBE9D
oklch(80.5% 0.048 86.4)
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 #B1BFDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.014
- Cloudy Blue #ACC2D9 ΔE 0.015
- Light Blue Grey #B7C9E2 ΔE 0.028
- Light Grey Blue #9DBCD4 ΔE 0.032
- Light Cornflower Blue #98C1D9 ΔE 0.033
- Pastel Blue #A2BFFE ΔE 0.047
- Silver #C0C0C0 ΔE 0.048
- Light Periwinkle #C1C6FC ΔE 0.048
Use #B1BFDF 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.