#A3C4FF
Closest named color: Pastel Blue (#A2BFFE). oklch(81.8% 0.091 261.8), rgb(163, 196, 255).
Aa
Black text reads best on this color (11.89:1).
About this color
#A3C4FF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.091 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.013 away. Black text reads best on it, at 11.89:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 11.89:1 |
| White text | 1.76:1 |
Values
| HEX | #A3C4FF |
| RGB | rgb(163, 196, 255) |
| HSL | hsl(218, 100%, 82%) |
| OKLCH | oklch(81.8% 0.091 261.8) |
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 #A3C4FF | 1.76:1 | Fails | Lc -36.3 | Non-text elements, placeholder text |
| Black text on #A3C4FF | 11.89:1 | AAA | Lc 71.5 | Content text, not long reading |
| #A3C4FF text on white | 1.76:1 | Fails | Lc 32.3 | Non-text elements, placeholder text |
| #A3C4FF text on black | 11.89:1 | AAA | Lc -70.4 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFC
oklch(93.5% 0.027 262.3)
-
Step 200
200
#C7DAFB
oklch(88.5% 0.05 261.5)
-
Step 300
300 (this color)
#A3C4FF
oklch(81.8% 0.091 261.8)
-
Step 400
400
#6D9FFB
oklch(70.8% 0.146 261.8)
-
Step 500
500
#4683F8
oklch(63% 0.186 261.9)
-
Step 600
600
#2869E7
oklch(55.5% 0.202 261.8)
-
Step 700
700
#1B57C9
oklch(49.2% 0.188 261.7)
-
Step 800
800
#1948A2
oklch(42.8% 0.155 261.7)
-
Step 900
900
#1A3D81
oklch(37.7% 0.122 261.9)
-
Step 950
950
#10244B
oklch(26.8% 0.077 262.1)
#A3C4FF 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) | #B0C8FF | 0.020 |
| Deuteranopia (no green cones) | #A6BFFE | 0.013 |
| Tritanopia (no blue cones) | #86D0D8 | 0.081 |
| Achromatopsia (no color) | #C3C3C3 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3C4FF
#A3C4FF
oklch(81.8% 0.091 261.8)
- #E1BE7E
#E1BE7E
oklch(81.8% 0.091 81.9)
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 #A3C4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.013
- Baby Blue #A2CFFE ΔE 0.030
- Sky #82CAFC ΔE 0.038
- Light Periwinkle #C1C6FC ΔE 0.039
- Light Sky Blue #87CEFA ΔE 0.041
- Carolina Blue #8AB8FE ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.049
Use #A3C4FF 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.