#BBC4E9
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.6% 0.053 274.4), rgb(187, 196, 233).
Aa
Black text reads best on this color (12.18:1).
About this color
#BBC4E9 is a light, muted blue. In OKLCH its lightness is 83%, its chroma 0.053 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.020 away. Black text reads best on it, at 12.18:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.18:1 |
| White text | 1.72:1 |
Values
| HEX | #BBC4E9 |
| RGB | rgb(187, 196, 233) |
| HSL | hsl(228, 51%, 82%) |
| OKLCH | oklch(82.6% 0.053 274.4) |
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 #BBC4E9 | 1.72:1 | Fails | Lc -35.0 | Non-text elements, placeholder text |
| Black text on #BBC4E9 | 12.18:1 | AAA | Lc 72.7 | Content text, not long reading |
| #BBC4E9 text on white | 1.72:1 | Fails | Lc 31.1 | Non-text elements, placeholder text |
| #BBC4E9 text on black | 12.18:1 | AAA | Lc -71.6 | 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
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300 (this color)
#BBC4E9
oklch(82.6% 0.053 274.4)
-
Step 400
400
#909DD6
oklch(70.7% 0.085 274.1)
-
Step 500
500
#7684CB
oklch(63.2% 0.108 274.4)
-
Step 600
600
#5F6CB8
oklch(55.6% 0.119 274.6)
-
Step 700
700
#4F5A9E
oklch(49.1% 0.109 274.7)
-
Step 800
800
#404A80
oklch(42.7% 0.09 274)
-
Step 900
900
#363E67
oklch(37.7% 0.071 274.1)
-
Step 950
950
#20253C
oklch(27.1% 0.043 273.8)
#BBC4E9 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) | #BAC7EB | 0.008 |
| Deuteranopia (no green cones) | #B7C4E8 | 0.006 |
| Tritanopia (no blue cones) | #B0CBD0 | 0.048 |
| Achromatopsia (no color) | #C5C5C5 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC4E9
#BBC4E9
oklch(82.6% 0.053 274.4)
- #D1C69F
#D1C69F
oklch(82.6% 0.054 94.2)
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 #BBC4E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.020
- Light Steel Blue #B0C4DE ΔE 0.022
- Light Periwinkle #C1C6FC ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.031
- Baby Blue #A2CFFE ΔE 0.042
- Thistle #D8BFD8 ΔE 0.044
- Pastel Blue #A2BFFE ΔE 0.048
- Light Cornflower Blue #98C1D9 ΔE 0.052
Use #BBC4E9 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.