#A3B8CD
Closest named color: Light Grey Blue (#9DBCD4). oklch(77.3% 0.038 248.3), rgb(163, 184, 205).
Aa
Black text reads best on this color (10.29:1).
About this color
#A3B8CD is a medium-light, muted blue. In OKLCH its lightness is 77%, its chroma 0.038 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Grey Blue (#9DBCD4), ΔE 0.013 away. Black text reads best on it, at 10.29:1.
| Hue family | Blues |
| Lightness | medium-light (77%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Light Grey Blue (#9DBCD4) |
| Black text | 10.29:1 |
| White text | 2.03:1 |
Values
| HEX | #A3B8CD |
| RGB | rgb(163, 184, 205) |
| HSL | hsl(210, 30%, 72%) |
| OKLCH | oklch(77.3% 0.038 248.3) |
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 #A3B8CD | 2.03:1 | Fails | Lc -44.2 | Non-text elements, placeholder text |
| Black text on #A3B8CD | 10.29:1 | AAA | Lc 64.2 | Content text, not long reading |
| #A3B8CD text on white | 2.03:1 | Fails | Lc 39.7 | Non-text elements, placeholder text |
| #A3B8CD text on black | 10.29:1 | AAA | Lc -62.6 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE7
oklch(88.6% 0.021 248.1)
-
Step 300
300 (this color)
#A3B8CD
oklch(77.3% 0.038 248.3)
-
Step 400
400
#83A4C5
oklch(70.6% 0.061 248.7)
-
Step 500
500
#638EB7
oklch(63.2% 0.078 248)
-
Step 600
600
#4A77A3
oklch(55.6% 0.085 249.1)
-
Step 700
700
#3B648B
oklch(49.1% 0.078 248.5)
-
Step 800
800
#315271
oklch(42.7% 0.065 248.1)
-
Step 900
900
#2B445B
oklch(37.7% 0.05 247.3)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#A3B8CD 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) | #B0B8CE | 0.017 |
| Deuteranopia (no green cones) | #ABB4CD | 0.014 |
| Tritanopia (no blue cones) | #98BDBF | 0.032 |
| Achromatopsia (no color) | #B5B5B5 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3B8CD
#A3B8CD
oklch(77.3% 0.038 248.3)
- #C6B19C
#C6B19C
oklch(77.3% 0.038 67.2)
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 #A3B8CD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Grey Blue #9DBCD4 ΔE 0.013
- French Gray #ADB5BD ΔE 0.024
- Light Cornflower Blue #98C1D9 ΔE 0.026
- Cloudy Blue #ACC2D9 ΔE 0.032
- Light Steel Blue #B0C4DE ΔE 0.041
- Silver #C0C0C0 ΔE 0.051
- Dark Gray #A9A9A9 ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.055
Use #A3B8CD 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.