#B1C1F0
Closest named color: Pastel Blue (#A2BFFE). oklch(81.5% 0.069 270.2), rgb(177, 193, 240).
Aa
Black text reads best on this color (11.75:1).
About this color
#B1C1F0 is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.069 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.029 away. Black text reads best on it, at 11.75:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.75:1 |
| White text | 1.78:1 |
Values
| HEX | #B1C1F0 |
| RGB | rgb(177, 193, 240) |
| HSL | hsl(225, 68%, 82%) |
| OKLCH | oklch(81.5% 0.069 270.2) |
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 #B1C1F0 | 1.78:1 | Fails | Lc -37.0 | Non-text elements, placeholder text |
| Black text on #B1C1F0 | 11.75:1 | AAA | Lc 70.9 | Content text, not long reading |
| #B1C1F0 text on white | 1.78:1 | Fails | Lc 33.0 | Non-text elements, placeholder text |
| #B1C1F0 text on black | 11.75:1 | AAA | Lc -69.7 | 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
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300 (this color)
#B1C1F0
oklch(81.5% 0.069 270.2)
-
Step 400
400
#869DE6
oklch(70.8% 0.11 270.1)
-
Step 500
500
#6983DE
oklch(63.2% 0.14 270)
-
Step 600
600
#526ACC
oklch(55.6% 0.153 270.4)
-
Step 700
700
#4358B0
oklch(49.1% 0.142 270.3)
-
Step 800
800
#37488F
oklch(42.6% 0.119 270.5)
-
Step 900
900
#2F3D72
oklch(37.6% 0.092 270.3)
-
Step 950
950
#1C2443
oklch(27% 0.059 271.1)
#B1C1F0 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) | #B3C5F2 | 0.011 |
| Deuteranopia (no green cones) | #AEBFEF | 0.007 |
| Tritanopia (no blue cones) | #A1CAD1 | 0.061 |
| Achromatopsia (no color) | #C2C2C2 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1C1F0
#B1C1F0
oklch(81.5% 0.069 270.2)
- #D4C18F
#D4C18F
oklch(81.5% 0.069 89.7)
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 #B1C1F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.029
- Light Steel Blue #B0C4DE ΔE 0.030
- Light Periwinkle #C1C6FC ΔE 0.030
- Light Blue Grey #B7C9E2 ΔE 0.035
- Cloudy Blue #ACC2D9 ΔE 0.035
- Baby Blue #A2CFFE ΔE 0.038
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Light Grey Blue #9DBCD4 ΔE 0.049
Use #B1C1F0 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.