#BBC3E9
Closest named color: Light Blue Grey (#B7C9E2). oklch(82.3% 0.054 275.8), rgb(187, 195, 233).
Aa
Black text reads best on this color (12.09:1).
About this color
#BBC3E9 is a light, muted blue. In OKLCH its lightness is 82%, its chroma 0.054 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.022 away. Black text reads best on it, at 12.09:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 12.09:1 |
| White text | 1.73:1 |
Values
| HEX | #BBC3E9 |
| RGB | rgb(187, 195, 233) |
| HSL | hsl(230, 51%, 82%) |
| OKLCH | oklch(82.3% 0.054 275.8) |
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 #BBC3E9 | 1.73:1 | Fails | Lc -35.4 | Non-text elements, placeholder text |
| Black text on #BBC3E9 | 12.09:1 | AAA | Lc 72.3 | Content text, not long reading |
| #BBC3E9 text on white | 1.73:1 | Fails | Lc 31.5 | Non-text elements, placeholder text |
| #BBC3E9 text on black | 12.09:1 | AAA | Lc -71.2 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EE
oklch(88.5% 0.031 275.6)
-
Step 300
300 (this color)
#BBC3E9
oklch(82.3% 0.054 275.8)
-
Step 400
400
#919CD7
oklch(70.6% 0.087 275.8)
-
Step 500
500
#7783CC
oklch(63.1% 0.111 275.7)
-
Step 600
600
#616BB9
oklch(55.6% 0.121 276.2)
-
Step 700
700
#50599F
oklch(49% 0.112 275.9)
-
Step 800
800
#414981
oklch(42.6% 0.093 275.6)
-
Step 900
900
#373E68
oklch(37.8% 0.072 275.2)
-
Step 950
950
#20243D
oklch(26.9% 0.047 275.9)
#BBC3E9 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) | #B9C6EB | 0.008 |
| Deuteranopia (no green cones) | #B6C3E8 | 0.007 |
| Tritanopia (no blue cones) | #B0CACF | 0.050 |
| Achromatopsia (no color) | #C4C4C4 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBC3E9
#BBC3E9
oklch(82.3% 0.054 275.8)
- #CFC69E
#CFC69E
oklch(82.4% 0.054 96.8)
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 #BBC3E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.022
- Light Steel Blue #B0C4DE ΔE 0.023
- Light Periwinkle #C1C6FC ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.031
- Baby Blue #A2CFFE ΔE 0.043
- Thistle #D8BFD8 ΔE 0.044
- Pastel Blue #A2BFFE ΔE 0.047
- Light Cornflower Blue #98C1D9 ΔE 0.052
Use #BBC3E9 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.