#B3D9FF
Closest named color: Baby Blue (#A2CFFE). oklch(87.1% 0.066 248.6), rgb(179, 217, 255).
Aa
Black text reads best on this color (14.28:1).
About this color
#B3D9FF is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.066 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Baby Blue (#A2CFFE), ΔE 0.035 away. Black text reads best on it, at 14.28:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Baby Blue (#A2CFFE) |
| Black text | 14.28:1 |
| White text | 1.46:1 |
Values
| HEX | #B3D9FF |
| RGB | rgb(179, 217, 255) |
| HSL | hsl(210, 100%, 85%) |
| OKLCH | oklch(87.1% 0.066 248.6) |
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 #B3D9FF | 1.46:1 | Fails | Lc -25.3 | Dividers and decoration only |
| Black text on #B3D9FF | 14.28:1 | AAA | Lc 81.5 | Fine for body text |
| #B3D9FF text on white | 1.46:1 | Fails | Lc 22.2 | Dividers and decoration only |
| #B3D9FF text on black | 14.28:1 | AAA | Lc -81.1 | 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 200.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECFA
oklch(93.7% 0.024 248.1)
-
Step 200
200 (this color)
#B3D9FF
oklch(87.1% 0.066 248.6)
-
Step 300
300
#95C6F6
oklch(80.9% 0.086 248.4)
-
Step 400
400
#54A6F1
oklch(70.6% 0.136 248.5)
-
Step 500
500
#008DEB
oklch(63% 0.172 248.6)
-
Step 600
600
#0077C7
oklch(55.7% 0.152 248.5)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#00518B
oklch(42.6% 0.117 248.8)
-
Step 900
900
#004475
oklch(37.8% 0.103 248.3)
-
Step 950
950
#012848
oklch(27.1% 0.073 248.6)
#B3D9FF 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) | #CBD9FF | 0.030 |
| Deuteranopia (no green cones) | #C1D1FE | 0.025 |
| Tritanopia (no blue cones) | #9CE2E5 | 0.057 |
| Achromatopsia (no color) | #D5D5D5 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3D9FF
#B3D9FF
oklch(87.1% 0.066 248.6)
- #F2CDA6
#F2CDA6
oklch(87% 0.066 68.3)
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 #B3D9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Baby Blue #A2CFFE ΔE 0.035
- Light Blue #ADD8E6 ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.045
- Light Blue Grey #B7C9E2 ΔE 0.049
- Light Periwinkle #C1C6FC ΔE 0.050
- Celeste #A8DADC ΔE 0.054
- Cadet Gray #CED4DA ΔE 0.056
- Light Sky Blue #87CEFA ΔE 0.060
Use #B3D9FF 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.