#A3C7DA
Closest named color: Cloudy Blue (#ACC2D9). oklch(81% 0.047 231.1), rgb(163, 199, 218).
Aa
Black text reads best on this color (11.73:1).
About this color
#A3C7DA is a light, muted blue. In OKLCH its lightness is 81%, its chroma 0.047 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Cloudy Blue (#ACC2D9), ΔE 0.016 away. Black text reads best on it, at 11.73:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Cloudy Blue (#ACC2D9) |
| Black text | 11.73:1 |
| White text | 1.78:1 |
Values
| HEX | #A3C7DA |
| RGB | rgb(163, 199, 218) |
| HSL | hsl(201, 43%, 75%) |
| OKLCH | oklch(81% 0.047 231.1) |
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 #A3C7DA | 1.78:1 | Fails | Lc -37.1 | Non-text elements, placeholder text |
| Black text on #A3C7DA | 11.73:1 | AAA | Lc 70.8 | Content text, not long reading |
| #A3C7DA text on white | 1.78:1 | Fails | Lc 33.1 | Non-text elements, placeholder text |
| #A3C7DA text on black | 11.73:1 | AAA | Lc -69.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300 (this color)
#A3C7DA
oklch(81% 0.047 231.1)
-
Step 400
400
#6FA9C7
oklch(70.6% 0.075 231.8)
-
Step 500
500
#4394B9
oklch(63.2% 0.096 230.7)
-
Step 600
600
#1B7DA5
oklch(55.5% 0.104 231.5)
-
Step 700
700
#076A8D
oklch(49.2% 0.096 230.4)
-
Step 800
800
#0F5673
oklch(42.6% 0.081 231.6)
-
Step 900
900
#17475D
oklch(37.6% 0.063 231.9)
-
Step 950
950
#0F2A36
oklch(27% 0.04 229.8)
#A3C7DA 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) | #BEC5DB | 0.034 |
| Deuteranopia (no green cones) | #B6BFDA | 0.030 |
| Tritanopia (no blue cones) | #93CCCD | 0.033 |
| Achromatopsia (no color) | #C2C2C2 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3C7DA
#A3C7DA
oklch(81% 0.047 231.1)
- #DBB9A6
#DBB9A6
oklch(81% 0.047 50.9)
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 #A3C7DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cloudy Blue #ACC2D9 ΔE 0.016
- Light Steel Blue #B0C4DE ΔE 0.019
- Light Cornflower Blue #98C1D9 ΔE 0.022
- Light Blue Grey #B7C9E2 ΔE 0.029
- Light Grey Blue #9DBCD4 ΔE 0.031
- Sky Blue #87CEEB ΔE 0.036
- Silver #C0C0C0 ΔE 0.047
- Light Blue #ADD8E6 ΔE 0.048
Use #A3C7DA 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.