#A4BBF3
Closest named color: Pastel Blue (#A2BFFE). oklch(79.5% 0.084 267.2), rgb(164, 187, 243).
Aa
Black text reads best on this color (10.98:1).
About this color
#A4BBF3 is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.084 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.016 away. Black text reads best on it, at 10.98:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.98:1 |
| White text | 1.91:1 |
Values
| HEX | #A4BBF3 |
| RGB | rgb(164, 187, 243) |
| HSL | hsl(223, 77%, 80%) |
| OKLCH | oklch(79.5% 0.084 267.2) |
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 #A4BBF3 | 1.91:1 | Fails | Lc -40.8 | Non-text elements, placeholder text |
| Black text on #A4BBF3 | 10.98:1 | AAA | Lc 67.4 | Content text, not long reading |
| #A4BBF3 text on white | 1.91:1 | Fails | Lc 36.5 | Non-text elements, placeholder text |
| #A4BBF3 text on black | 10.98:1 | AAA | Lc -66.0 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CBD9F9
oklch(88.5% 0.047 266.7)
-
Step 300
300 (this color)
#A4BBF3
oklch(79.5% 0.084 267.2)
-
Step 400
400
#7B9DF4
oklch(70.8% 0.133 266.8)
-
Step 500
500
#5B81F0
oklch(63.1% 0.172 267.2)
-
Step 600
600
#4367DF
oklch(55.5% 0.187 267.4)
-
Step 700
700
#3555C1
oklch(49% 0.173 267.2)
-
Step 800
800
#2C469C
oklch(42.6% 0.144 267.3)
-
Step 900
900
#273C7C
oklch(37.6% 0.112 267.2)
-
Step 950
950
#172449
oklch(27.1% 0.071 267.1)
#A4BBF3 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) | #A9BFF6 | 0.013 |
| Deuteranopia (no green cones) | #A2B8F2 | 0.008 |
| Tritanopia (no blue cones) | #8DC6CE | 0.075 |
| Achromatopsia (no color) | #BBBBBB | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4BBF3
#A4BBF3
oklch(79.5% 0.084 267.2)
- #D3B97D
#D3B97D
oklch(79.4% 0.083 87.1)
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 #A4BBF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.016
- Carolina Blue #8AB8FE ΔE 0.036
- Light Steel Blue #B0C4DE ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.048
- Cloudy Blue #ACC2D9 ΔE 0.048
- Light Cornflower Blue #98C1D9 ΔE 0.048
- Sky #82CAFC ΔE 0.049
- Light Periwinkle #C1C6FC ΔE 0.050
Use #A4BBF3 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.