#3A4D71
Closest named color: YInMn Blue (#415A77). oklch(42.1% 0.065 262.6), rgb(58, 77, 113).
Aa
White text reads best on this color (8.46:1).
About this color
#3A4D71 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.065 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.041 away. White text reads best on it, at 8.46:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.47:1 |
| White text | 8.46:1 |
Values
| HEX | #3A4D71 |
| RGB | rgb(58, 77, 113) |
| HSL | hsl(219, 32%, 34%) |
| OKLCH | oklch(42.1% 0.065 262.6) |
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 #3A4D71 | 8.46:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #3A4D71 | 2.47:1 | Fails | Lc 14.9 | Not readable |
| #3A4D71 text on white | 8.46:1 | AAA | Lc 89.1 | Fine for body text |
| #3A4D71 text on black | 2.47:1 | Fails | Lc -13.1 | Not readable |
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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2D9E8
oklch(88.4% 0.022 265.8)
-
Step 300
300
#B4C1DA
oklch(80.9% 0.038 263.6)
-
Step 400
400
#8CA1C7
oklch(70.6% 0.061 262.2)
-
Step 500
500
#708AB9
oklch(63.2% 0.077 262)
-
Step 600
600
#5873A5
oklch(55.6% 0.085 262.2)
-
Step 700
700
#48608D
oklch(49% 0.078 262.4)
-
Step 800
800 (this color)
#3A4D71
oklch(42.1% 0.065 262.6)
-
Step 900
900
#33425D
oklch(37.8% 0.05 261.8)
-
Step 950
950
#1E2636
oklch(26.9% 0.032 263.8)
#3A4D71 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) | #405073 | 0.013 |
| Deuteranopia (no green cones) | #3A4B70 | 0.006 |
| Tritanopia (no blue cones) | #24555A | 0.058 |
| Achromatopsia (no color) | #4D4D4D | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4D71
#3A4D71
oklch(42.1% 0.065 262.6)
- #5F4A20
#5F4A20
oklch(42.2% 0.065 82.6)
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 #3A4D71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.041
- Light Navy #155084 ΔE 0.044
- Dusk #4E5481 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.048
- Dusk Blue #26538D ΔE 0.048
- Dusty Grape #545775 ΔE 0.051
Use #3A4D71 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.