#A4BDD8
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.9% 0.047 250.4), rgb(164, 189, 216).
Aa
Black text reads best on this color (10.84:1).
About this color
#A4BDD8 is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.047 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.011 away. Black text reads best on it, at 10.84:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.84:1 |
| White text | 1.93:1 |
Values
| HEX | #A4BDD8 |
| RGB | rgb(164, 189, 216) |
| HSL | hsl(211, 40%, 75%) |
| OKLCH | oklch(78.9% 0.047 250.4) |
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 #A4BDD8 | 1.93:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #A4BDD8 | 10.84:1 | AAA | Lc 66.8 | Content text, not long reading |
| #A4BDD8 text on white | 1.93:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #A4BDD8 text on black | 10.84:1 | AAA | Lc -65.3 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300 (this color)
#A4BDD8
oklch(78.9% 0.047 250.4)
-
Step 400
400
#7DA4CF
oklch(70.6% 0.076 251.4)
-
Step 500
500
#5B8DC2
oklch(63% 0.097 250.9)
-
Step 600
600
#4077AE
oklch(55.7% 0.104 250.2)
-
Step 700
700
#316496
oklch(49.2% 0.098 250)
-
Step 800
800
#2A517A
oklch(42.6% 0.082 251.3)
-
Step 900
900
#264462
oklch(37.8% 0.063 249.8)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#A4BDD8 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) | #B3BDD9 | 0.020 |
| Deuteranopia (no green cones) | #ADB8D7 | 0.016 |
| Tritanopia (no blue cones) | #96C3C6 | 0.040 |
| Achromatopsia (no color) | #BABABA | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4BDD8
#A4BDD8
oklch(78.9% 0.047 250.4)
- #CEB59A
#CEB59A
oklch(78.8% 0.047 69.2)
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 #A4BDD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.011
- Light Cornflower Blue #98C1D9 ΔE 0.017
- Cloudy Blue #ACC2D9 ΔE 0.018
- Light Steel Blue #B0C4DE ΔE 0.026
- French Gray #ADB5BD ΔE 0.038
- Light Blue Grey #B7C9E2 ΔE 0.043
- Sky Blue #87CEEB ΔE 0.051
- Silver #C0C0C0 ΔE 0.051
Use #A4BDD8 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.