#B1CEFB
Closest named color: Baby Blue (#A2CFFE). oklch(84.5% 0.071 259.1), rgb(177, 206, 251).
Aa
Black text reads best on this color (13.09:1).
About this color
#B1CEFB is a light, moderately saturated blue. In OKLCH its lightness is 85%, its chroma 0.071 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.017 away. Black text reads best on it, at 13.09:1.
| Hue family | Blues |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 13.09:1 |
| White text | 1.60:1 |
Values
| HEX | #B1CEFB |
| RGB | rgb(177, 206, 251) |
| HSL | hsl(216, 90%, 84%) |
| OKLCH | oklch(84.5% 0.071 259.1) |
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 #B1CEFB | 1.60:1 | Fails | Lc -30.7 | Non-text elements, placeholder text |
| Black text on #B1CEFB | 13.09:1 | AAA | Lc 76.6 | Fine for body text |
| #B1CEFB text on white | 1.60:1 | Fails | Lc 27.2 | Dividers and decoration only |
| #B1CEFB text on black | 13.09:1 | AAA | Lc -75.8 | Fine for body text |
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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300 (this color)
#B1CEFB
oklch(84.5% 0.071 259.1)
-
Step 400
400
#75A1E7
oklch(70.6% 0.114 259.4)
-
Step 500
500
#5188DF
oklch(63% 0.144 259.2)
-
Step 600
600
#3570CD
oklch(55.5% 0.157 259.3)
-
Step 700
700
#275EB2
oklch(49.2% 0.146 258.9)
-
Step 800
800
#224D90
oklch(42.8% 0.121 259.1)
-
Step 900
900
#214173
oklch(37.8% 0.094 259)
-
Step 950
950
#142643
oklch(27% 0.059 259.5)
#B1CEFB 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) | #BFD0FD | 0.019 |
| Deuteranopia (no green cones) | #B7C9FA | 0.014 |
| Tritanopia (no blue cones) | #9CD7DD | 0.062 |
| Achromatopsia (no color) | #CCCCCC | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1CEFB
#B1CEFB
oklch(84.5% 0.071 259.1)
- #E5C898
#E5C898
oklch(84.6% 0.071 80.1)
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 #B1CEFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.017
- Light Periwinkle #C1C6FC ΔE 0.028
- Light Blue Grey #B7C9E2 ΔE 0.034
- Light Steel Blue #B0C4DE ΔE 0.042
- Light Blue #ADD8E6 ΔE 0.046
- Light Sky Blue #87CEFA ΔE 0.047
- Pastel Blue #A2BFFE ΔE 0.047
- Cloudy Blue #ACC2D9 ΔE 0.051
Use #B1CEFB 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.