#A4B9EF
Closest named color: Pastel Blue (#A2BFFE). oklch(78.9% 0.081 268), rgb(164, 185, 239).
Aa
Black text reads best on this color (10.76:1).
About this color
#A4B9EF is a light, moderately saturated blue. In OKLCH its lightness is 79%, its chroma 0.081 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Pastel Blue (#A2BFFE), ΔE 0.023 away. Black text reads best on it, at 10.76:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Pastel Blue (#A2BFFE) |
| Black text | 10.76:1 |
| White text | 1.95:1 |
Values
| HEX | #A4B9EF |
| RGB | rgb(164, 185, 239) |
| HSL | hsl(223, 70%, 79%) |
| OKLCH | oklch(78.9% 0.081 268) |
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 #A4B9EF | 1.95:1 | Fails | Lc -41.8 | Non-text elements, placeholder text |
| Black text on #A4B9EF | 10.76:1 | AAA | Lc 66.4 | Content text, not long reading |
| #A4B9EF text on white | 1.95:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #A4B9EF text on black | 10.76:1 | AAA | Lc -64.9 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300 (this color)
#A4B9EF
oklch(78.9% 0.081 268)
-
Step 400
400
#7E9CF1
oklch(70.6% 0.129 268.2)
-
Step 500
500
#5F81EC
oklch(63% 0.165 268.2)
-
Step 600
600
#4768DB
oklch(55.6% 0.18 268)
-
Step 700
700
#3956BE
oklch(49.2% 0.167 268)
-
Step 800
800
#2F4799
oklch(42.7% 0.137 267.9)
-
Step 900
900
#293C7A
oklch(37.6% 0.108 268.1)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#A4B9EF 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) | #A8BDF1 | 0.012 |
| Deuteranopia (no green cones) | #A1B7EE | 0.007 |
| Tritanopia (no blue cones) | #8FC4CB | 0.073 |
| Achromatopsia (no color) | #BABABA | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4B9EF
#A4B9EF
oklch(78.9% 0.081 268)
- #D0B87E
#D0B87E
oklch(79% 0.08 88)
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 #A4B9EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Blue #A2BFFE ΔE 0.023
- Carolina Blue #8AB8FE ΔE 0.037
- Light Grey Blue #9DBCD4 ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Cloudy Blue #ACC2D9 ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.047
- Sky #82CAFC ΔE 0.053
- Lightblue #7BC8F6 ΔE 0.054
Use #A4B9EF 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.