#BBC4E7
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.5% 0.05 273.9), rgb(187, 196, 231).
Aa
Black text reads best on this color (12.16:1).
About this color
#BBC4E7 is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.050 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.018 away. Black text reads best on it, at 12.16:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.16:1 |
| White text | 1.72:1 |
Values
| HEX | #BBC4E7 |
| RGB | rgb(187, 196, 231) |
| HSL | hsl(228, 48%, 82%) |
| OKLCH | oklch(82.5% 0.05 273.9) |
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 #BBC4E7 | 1.72:1 | Fails | Lc -35.1 | Non-text elements, placeholder text |
| Black text on #BBC4E7 | 12.16:1 | AAA | Lc 72.6 | Content text, not long reading |
| #BBC4E7 text on white | 1.72:1 | Fails | Lc 31.2 | Non-text elements, placeholder text |
| #BBC4E7 text on black | 12.16:1 | AAA | Lc -71.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300 (this color)
#BBC4E7
oklch(82.5% 0.05 273.9)
-
Step 400
400
#919DD3
oklch(70.7% 0.08 274.5)
-
Step 500
500
#7684C7
oklch(63% 0.102 274.1)
-
Step 600
600
#5F6DB4
oklch(55.6% 0.111 273.8)
-
Step 700
700
#4F5B9B
oklch(49.1% 0.103 274)
-
Step 800
800
#414A7E
oklch(42.7% 0.087 274.7)
-
Step 900
900
#373E65
oklch(37.6% 0.067 275)
-
Step 950
950
#20253B
oklch(27.1% 0.042 273.5)
#BBC4E7 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) | #BAC7E9 | 0.008 |
| Deuteranopia (no green cones) | #B7C3E6 | 0.006 |
| Tritanopia (no blue cones) | #B1CACF | 0.045 |
| Achromatopsia (no color) | #C5C5C5 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC4E7
#BBC4E7
oklch(82.5% 0.05 273.9)
- #D0C6A1
#D0C6A1
oklch(82.5% 0.051 94.7)
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 #BBC4E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.018
- Light Steel Blue #B0C4DE ΔE 0.020
- Cloudy Blue #ACC2D9 ΔE 0.029
- Light Periwinkle #C1C6FC ΔE 0.031
- Thistle #D8BFD8 ΔE 0.043
- Baby Blue #A2CFFE ΔE 0.044
- Pastel Blue #A2BFFE ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.051
Use #BBC4E7 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.