#A4B3FA
Closest named color: Pastel Blue (#A2BFFE). oklch(78.2% 0.103 274.6), rgb(164, 179, 250).
Aa
Black text reads best on this color (10.40:1).
About this color
#A4B3FA is a light, moderately saturated blue. In OKLCH its lightness is 78%, its chroma 0.103 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.030 away. Black text reads best on it, at 10.40:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.40:1 |
| White text | 2.01:1 |
Values
| HEX | #A4B3FA |
| RGB | rgb(164, 179, 250) |
| HSL | hsl(230, 90%, 81%) |
| OKLCH | oklch(78.2% 0.103 274.6) |
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 #A4B3FA | 2.01:1 | Fails | Lc -43.6 | Non-text elements, placeholder text |
| Black text on #A4B3FA | 10.40:1 | AAA | Lc 64.8 | Content text, not long reading |
| #A4B3FA text on white | 2.01:1 | Fails | Lc 39.1 | Non-text elements, placeholder text |
| #A4B3FA text on black | 10.40:1 | AAA | Lc -63.2 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FE
oklch(93.6% 0.029 273.1)
-
Step 200
200
#CED7FF
oklch(88.5% 0.056 275.2)
-
Step 300
300 (this color)
#A4B3FA
oklch(78.2% 0.103 274.6)
-
Step 400
400
#8597FF
oklch(70.8% 0.153 274.4)
-
Step 500
500
#6978FF
oklch(63.1% 0.199 274.4)
-
Step 600
600
#5359F5
oklch(55.7% 0.228 274.5)
-
Step 700
700
#4547D6
oklch(49.2% 0.213 274.7)
-
Step 800
800
#383CAC
oklch(42.7% 0.175 274.6)
-
Step 900
900
#2F3588
oklch(37.7% 0.137 274.6)
-
Step 950
950
#1B2050
oklch(27% 0.087 274.5)
#A4B3FA 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) | #9DBAFD | 0.019 |
| Deuteranopia (no green cones) | #96B3F8 | 0.018 |
| Tritanopia (no blue cones) | #8CC1CC | 0.092 |
| Achromatopsia (no color) | #B6B6B6 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4B3FA
#A4B3FA
oklch(78.2% 0.103 274.6)
- #CDB768
#CDB768
oklch(78.1% 0.103 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 #A4B3FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.030
- Carolina Blue #8AB8FE ΔE 0.032
- Pale Violet #CEAEFA ΔE 0.058
- Light Periwinkle #C1C6FC ΔE 0.066
- Sky #82CAFC ΔE 0.067
- Light Grey Blue #9DBCD4 ΔE 0.068
- Lightblue #7BC8F6 ΔE 0.069
- Pastel Purple #CAA0FF ΔE 0.070
Use #A4B3FA 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.