#B1CBDB
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.8% 0.036 234.9), rgb(177, 203, 219).
Aa
Black text reads best on this color (12.43:1).
About this color
#B1CBDB is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.036 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.015 away. Black text reads best on it, at 12.43:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.43:1 |
| White text | 1.68:1 |
Values
| HEX | #B1CBDB |
| RGB | rgb(177, 203, 219) |
| HSL | hsl(203, 37%, 78%) |
| OKLCH | oklch(82.8% 0.036 234.9) |
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 #B1CBDB | 1.68:1 | Fails | Lc -33.8 | Non-text elements, placeholder text |
| Black text on #B1CBDB | 12.43:1 | AAA | Lc 73.8 | Content text, not long reading |
| #B1CBDB text on white | 1.68:1 | Fails | Lc 30.0 | Non-text elements, placeholder text |
| #B1CBDB text on black | 12.43:1 | AAA | Lc -72.8 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE5
oklch(88.6% 0.02 233.9)
-
Step 300
300 (this color)
#B1CBDB
oklch(82.8% 0.036 234.9)
-
Step 400
400
#7EA7C0
oklch(70.7% 0.058 235.4)
-
Step 500
500
#5B91B0
oklch(63.1% 0.074 234.8)
-
Step 600
600
#407B9B
oklch(55.7% 0.079 234.4)
-
Step 700
700
#316785
oklch(49% 0.075 235.4)
-
Step 800
800
#2A546C
oklch(42.6% 0.062 235.8)
-
Step 900
900
#264657
oklch(37.7% 0.048 233.2)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#B1CBDB 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) | #C4CADC | 0.025 |
| Deuteranopia (no green cones) | #BEC5DB | 0.022 |
| Tritanopia (no blue cones) | #A6CFD0 | 0.026 |
| Achromatopsia (no color) | #C7C7C7 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1CBDB
#B1CBDB
oklch(82.8% 0.036 234.9)
- #DAC1B1
#DAC1B1
oklch(82.8% 0.036 54.7)
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 #B1CBDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.015
- Light Steel Blue #B0C4DE ΔE 0.021
- Cloudy Blue #ACC2D9 ΔE 0.025
- Light Blue #ADD8E6 ΔE 0.033
- Celeste #A8DADC ΔE 0.040
- Silver #C0C0C0 ΔE 0.041
- Light Cornflower Blue #98C1D9 ΔE 0.043
- Cadet Gray #CED4DA ΔE 0.047
Use #B1CBDB 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.