#A3ACCC
Closest named color: French Gray (#ADB5BD). oklch(74.8% 0.047 272.9), rgb(163, 172, 204).
Aa
Black text reads best on this color (9.33:1).
About this color
#A3ACCC is a medium-light, muted blue. In OKLCH its lightness is 75%, its chroma 0.047 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is French Gray (#ADB5BD), ΔE 0.041 away. Black text reads best on it, at 9.33:1.
| Hue family | Blues |
| Lightness | medium-light (75%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | French Gray (#ADB5BD) |
| Black text | 9.33:1 |
| White text | 2.25:1 |
Values
| HEX | #A3ACCC |
| RGB | rgb(163, 172, 204) |
| HSL | hsl(227, 29%, 72%) |
| OKLCH | oklch(74.8% 0.047 272.9) |
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 #A3ACCC | 2.25:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #A3ACCC | 9.33:1 | AAA | Lc 59.6 | Large or bold text, headings |
| #A3ACCC text on white | 2.25:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #A3ACCC text on black | 9.33:1 | AAA | Lc -57.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E4
oklch(88.5% 0.016 270)
-
Step 300
300
#BAC0D4
oklch(80.9% 0.029 272.4)
-
Step 400
400 (this color)
#A3ACCC
oklch(74.8% 0.047 272.9)
-
Step 500
500
#7D87AF
oklch(63% 0.061 273.6)
-
Step 600
600
#66719A
oklch(55.6% 0.065 272.5)
-
Step 700
700
#555F84
oklch(49.2% 0.061 272.4)
-
Step 800
800
#464D6B
oklch(42.7% 0.051 273.9)
-
Step 900
900
#3A4057
oklch(37.6% 0.04 273)
-
Step 950
950
#222633
oklch(27.1% 0.025 271.4)
#A3ACCC 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) | #A3AFCE | 0.008 |
| Deuteranopia (no green cones) | #A0ABCB | 0.005 |
| Tritanopia (no blue cones) | #99B2B6 | 0.043 |
| Achromatopsia (no color) | #ADADAD | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3ACCC
#A3ACCC
oklch(74.8% 0.047 272.9)
- #B7AD8C
#B7AD8C
oklch(74.7% 0.047 93.2)
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 #A3ACCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Gray #ADB5BD ΔE 0.041
- Cool Steel #97A7B3 ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.041
- Dark Gray #A9A9A9 ΔE 0.049
- Light Cornflower Blue #98C1D9 ΔE 0.054
- Cool Grey #95A3A6 ΔE 0.060
- Bluegrey #85A3B2 ΔE 0.060
- Cloudy Blue #ACC2D9 ΔE 0.060
Use #A3ACCC 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.