#A4BDD4
Closest named color: Light Grey Blue (#9DBCD4). oklch(78.7% 0.043 246.1), rgb(164, 189, 212).
Aa
Black text reads best on this color (10.80:1).
About this color
#A4BDD4 is a light, muted blue. In OKLCH its lightness is 79%, its chroma 0.043 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.009 away. Black text reads best on it, at 10.80:1.
| Hue family | Blues |
| Lightness | light (79%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.80:1 |
| White text | 1.94:1 |
Values
| HEX | #A4BDD4 |
| RGB | rgb(164, 189, 212) |
| HSL | hsl(209, 36%, 74%) |
| OKLCH | oklch(78.7% 0.043 246.1) |
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 #A4BDD4 | 1.94:1 | Fails | Lc -41.7 | Non-text elements, placeholder text |
| Black text on #A4BDD4 | 10.80:1 | AAA | Lc 66.6 | Content text, not long reading |
| #A4BDD4 text on white | 1.94:1 | Fails | Lc 37.3 | Non-text elements, placeholder text |
| #A4BDD4 text on black | 10.80:1 | AAA | Lc -65.1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300 (this color)
#A4BDD4
oklch(78.7% 0.043 246.1)
-
Step 400
400
#7DA5C9
oklch(70.6% 0.069 246.1)
-
Step 500
500
#5B8FBB
oklch(63.1% 0.087 245.3)
-
Step 600
600
#4078A8
oklch(55.6% 0.096 246.5)
-
Step 700
700
#326590
oklch(49.1% 0.088 246.3)
-
Step 800
800
#2A5275
oklch(42.6% 0.074 247)
-
Step 900
900
#27445E
oklch(37.6% 0.057 247)
-
Step 950
950
#172837
oklch(26.9% 0.036 246.3)
#A4BDD4 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) | #B4BDD5 | 0.021 |
| Deuteranopia (no green cones) | #AEB8D4 | 0.018 |
| Tritanopia (no blue cones) | #97C2C4 | 0.035 |
| Achromatopsia (no color) | #BABABA | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4BDD4
#A4BDD4
oklch(78.7% 0.043 246.1)
- #CDB59D
#CDB59D
oklch(78.7% 0.043 67.1)
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 #A4BDD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.009
- Light Cornflower Blue #98C1D9 ΔE 0.016
- Cloudy Blue #ACC2D9 ΔE 0.018
- Light Steel Blue #B0C4DE ΔE 0.027
- French Gray #ADB5BD ΔE 0.033
- Light Blue Grey #B7C9E2 ΔE 0.044
- Silver #C0C0C0 ΔE 0.047
- Sky Blue #87CEEB ΔE 0.052
Use #A4BDD4 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.