#B4CDF1
Closest named color: Light Blue Grey (#B7C9E2). oklch(84.2% 0.057 257.5), rgb(180, 205, 241).
Aa
Black text reads best on this color (12.94:1).
About this color
#B4CDF1 is a light, muted blue. In OKLCH its lightness is 84%, its chroma 0.057 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.021 away. Black text reads best on it, at 12.94:1.
| Hue family | Blues |
| Lightness | light (84%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.94:1 |
| White text | 1.62:1 |
Values
| HEX | #B4CDF1 |
| RGB | rgb(180, 205, 241) |
| HSL | hsl(215, 69%, 83%) |
| OKLCH | oklch(84.2% 0.057 257.5) |
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 #B4CDF1 | 1.62:1 | Fails | Lc -31.4 | Non-text elements, placeholder text |
| Black text on #B4CDF1 | 12.94:1 | AAA | Lc 76.0 | Fine for body text |
| #B4CDF1 text on white | 1.62:1 | Fails | Lc 27.8 | Dividers and decoration only |
| #B4CDF1 text on black | 12.94:1 | AAA | Lc -75.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300 (this color)
#B4CDF1
oklch(84.2% 0.057 257.5)
-
Step 400
400
#7CA2DA
oklch(70.6% 0.093 257.9)
-
Step 500
500
#5A8AD0
oklch(63% 0.118 257.8)
-
Step 600
600
#4073BD
oklch(55.6% 0.128 257.8)
-
Step 700
700
#3160A3
oklch(49% 0.119 257.6)
-
Step 800
800
#2A4F84
oklch(42.8% 0.098 257.6)
-
Step 900
900
#26426A
oklch(37.8% 0.077 257.4)
-
Step 950
950
#17273E
oklch(27.1% 0.048 257.5)
#B4CDF1 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) | #C1CEF3 | 0.017 |
| Deuteranopia (no green cones) | #BAC8F0 | 0.014 |
| Tritanopia (no blue cones) | #A4D5D9 | 0.050 |
| Achromatopsia (no color) | #CBCBCB | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4CDF1
#B4CDF1
oklch(84.2% 0.057 257.5)
- #E0C7A2
#E0C7A2
oklch(84.1% 0.057 77.5)
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 #B4CDF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.021
- Baby Blue #A2CFFE ΔE 0.026
- Light Steel Blue #B0C4DE ΔE 0.032
- Light Periwinkle #C1C6FC ΔE 0.032
- Light Blue #ADD8E6 ΔE 0.038
- Cloudy Blue #ACC2D9 ΔE 0.041
- Light Sky Blue #87CEFA ΔE 0.050
- Sky Blue #87CEEB ΔE 0.052
Use #B4CDF1 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.