#A4B9DB
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.1% 0.054 260), rgb(164, 185, 219).
Aa
Black text reads best on this color (10.54:1).
About this color
#A4B9DB is a light, muted blue. In OKLCH its lightness is 78%, its chroma 0.054 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.017 away. Black text reads best on it, at 10.54:1.
| Hue family | Blues |
| Lightness | light (78%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.54:1 |
| White text | 1.99:1 |
Values
| HEX | #A4B9DB |
| RGB | rgb(164, 185, 219) |
| HSL | hsl(217, 43%, 75%) |
| OKLCH | oklch(78.1% 0.054 260) |
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 #A4B9DB | 1.99:1 | Fails | Lc -43.0 | Non-text elements, placeholder text |
| Black text on #A4B9DB | 10.54:1 | AAA | Lc 65.4 | Content text, not long reading |
| #A4B9DB text on white | 1.99:1 | Fails | Lc 38.5 | Non-text elements, placeholder text |
| #A4B9DB text on black | 10.54:1 | AAA | Lc -63.8 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300 (this color)
#A4B9DB
oklch(78.1% 0.054 260)
-
Step 400
400
#81A2D7
oklch(70.8% 0.086 259.7)
-
Step 500
500
#618ACC
oklch(63.2% 0.11 259.6)
-
Step 600
600
#4872B9
oklch(55.5% 0.121 260.3)
-
Step 700
700
#39609F
oklch(49.2% 0.111 259.6)
-
Step 800
800
#304E81
oklch(42.6% 0.092 260.4)
-
Step 900
900
#2A4168
oklch(37.6% 0.073 260.4)
-
Step 950
950
#19263D
oklch(26.9% 0.047 261.3)
#A4B9DB 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) | #AEBBDD | 0.015 |
| Deuteranopia (no green cones) | #A8B5DA | 0.011 |
| Tritanopia (no blue cones) | #95C0C4 | 0.048 |
| Achromatopsia (no color) | #B8B8B8 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4B9DB
#A4B9DB
oklch(78.1% 0.054 260)
- #CAB591
#CAB591
oklch(78.2% 0.054 81.1)
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 #A4B9DB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.017
- Light Cornflower Blue #98C1D9 ΔE 0.026
- Cloudy Blue #ACC2D9 ΔE 0.028
- Light Steel Blue #B0C4DE ΔE 0.034
- French Gray #ADB5BD ΔE 0.042
- Pastel Blue #A2BFFE ΔE 0.049
- Light Blue Grey #B7C9E2 ΔE 0.051
- Carolina Blue #8AB8FE ΔE 0.058
Use #A4B9DB 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.