#ACB9DF
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.9% 0.056 270.3), rgb(172, 185, 223).
Aa
Black text reads best on this color (10.75:1).
About this color
#ACB9DF is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.056 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.028 away. Black text reads best on it, at 10.75:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.75:1 |
| White text | 1.95:1 |
Values
| HEX | #ACB9DF |
| RGB | rgb(172, 185, 223) |
| HSL | hsl(225, 44%, 77%) |
| OKLCH | oklch(78.9% 0.056 270.3) |
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 #ACB9DF | 1.95:1 | Fails | Lc -41.9 | Non-text elements, placeholder text |
| Black text on #ACB9DF | 10.75:1 | AAA | Lc 66.4 | Content text, not long reading |
| #ACB9DF text on white | 1.95:1 | Fails | Lc 37.5 | Non-text elements, placeholder text |
| #ACB9DF text on black | 10.75:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EE
oklch(88.6% 0.03 269.1)
-
Step 300
300 (this color)
#ACB9DF
oklch(78.9% 0.056 270.3)
-
Step 400
400
#8B9ED9
oklch(70.7% 0.089 270.3)
-
Step 500
500
#6F85CF
oklch(63.1% 0.115 270.3)
-
Step 600
600
#586DBC
oklch(55.6% 0.125 270.7)
-
Step 700
700
#485BA2
oklch(49.1% 0.116 270.4)
-
Step 800
800
#3B4B83
oklch(42.8% 0.095 270)
-
Step 900
900
#323F69
oklch(37.7% 0.074 269.6)
-
Step 950
950
#1D253E
oklch(27% 0.048 269.5)
#ACB9DF 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) | #AEBCE1 | 0.009 |
| Deuteranopia (no green cones) | #AAB8DE | 0.004 |
| Tritanopia (no blue cones) | #9FC0C6 | 0.050 |
| Achromatopsia (no color) | #B9B9B9 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ACB9DF
#ACB9DF
oklch(78.9% 0.056 270.3)
- #C8B991
#C8B991
oklch(78.8% 0.056 89.9)
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 #ACB9DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.028
- Cloudy Blue #ACC2D9 ΔE 0.028
- Light Steel Blue #B0C4DE ΔE 0.031
- Light Cornflower Blue #98C1D9 ΔE 0.035
- Pastel Blue #A2BFFE ΔE 0.043
- Light Blue Grey #B7C9E2 ΔE 0.046
- French Gray #ADB5BD ΔE 0.047
- Light Periwinkle #C1C6FC ΔE 0.057
Use #ACB9DF 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.