#B5BFEB
Closest named color: Light Steel Blue (#B0C4DE). oklch(81.2% 0.063 274.9), rgb(181, 191, 235).
Aa
Black text reads best on this color (11.61:1).
About this color
#B5BFEB is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.063 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Light Steel Blue (#B0C4DE), ΔE 0.027 away. Black text reads best on it, at 11.61:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Light Steel Blue (#B0C4DE) |
| Black text | 11.61:1 |
| White text | 1.80:1 |
Values
| HEX | #B5BFEB |
| RGB | rgb(181, 191, 235) |
| HSL | hsl(229, 57%, 82%) |
| OKLCH | oklch(81.2% 0.063 274.9) |
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 #B5BFEB | 1.80:1 | Fails | Lc -37.7 | Non-text elements, placeholder text |
| Black text on #B5BFEB | 11.61:1 | AAA | Lc 70.2 | Content text, not long reading |
| #B5BFEB text on white | 1.80:1 | Fails | Lc 33.6 | Non-text elements, placeholder text |
| #B5BFEB text on black | 11.61:1 | AAA | Lc -69.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F1
oklch(88.5% 0.035 274.9)
-
Step 300
300 (this color)
#B5BFEB
oklch(81.2% 0.063 274.9)
-
Step 400
400
#8E9CE0
oklch(70.8% 0.101 274.6)
-
Step 500
500
#7381D7
oklch(63% 0.13 275.1)
-
Step 600
600
#5D69C4
oklch(55.6% 0.14 275.2)
-
Step 700
700
#4C57A9
oklch(49% 0.13 274.8)
-
Step 800
800
#3F4889
oklch(42.8% 0.107 275)
-
Step 900
900
#353D6E
oklch(37.8% 0.084 274.7)
-
Step 950
950
#1F2440
oklch(27% 0.052 274.7)
#B5BFEB 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) | #B3C3ED | 0.010 |
| Deuteranopia (no green cones) | #AFBFEA | 0.008 |
| Tritanopia (no blue cones) | #A8C7CE | 0.056 |
| Achromatopsia (no color) | #C1C1C1 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5BFEB
#B5BFEB
oklch(81.2% 0.063 274.9)
- #CEC293
#CEC293
oklch(81.2% 0.064 95.5)
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 #B5BFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Steel Blue #B0C4DE ΔE 0.027
- Cloudy Blue #ACC2D9 ΔE 0.032
- Light Periwinkle #C1C6FC ΔE 0.033
- Light Blue Grey #B7C9E2 ΔE 0.033
- Pastel Blue #A2BFFE ΔE 0.035
- Baby Blue #A2CFFE ΔE 0.045
- Light Grey Blue #9DBCD4 ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.047
Use #B5BFEB 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.