#3A5271
Closest named color: YInMn Blue (#415A77). oklch(43.3% 0.06 255.2), rgb(58, 82, 113).
Aa
White text reads best on this color (7.99:1).
About this color
#3A5271 is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.060 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.99:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.62:1 |
| White text | 7.99:1 |
Values
| HEX | #3A5271 |
| RGB | rgb(58, 82, 113) |
| HSL | hsl(214, 32%, 34%) |
| OKLCH | oklch(43.3% 0.06 255.2) |
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 #3A5271 | 7.99:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #3A5271 | 2.62:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #3A5271 text on white | 7.99:1 | AAA | Lc 87.7 | Fine for body text |
| #3A5271 text on black | 2.62:1 | Fails | Lc -14.5 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B2C2D7
oklch(80.9% 0.035 255.2)
-
Step 400
400
#8AA3C3
oklch(70.8% 0.055 254.7)
-
Step 500
500
#6C8CB4
oklch(63.1% 0.071 254.3)
-
Step 600
600
#5475A0
oklch(55.5% 0.077 255.4)
-
Step 700
700
#446289
oklch(49% 0.072 255.3)
-
Step 800
800 (this color)
#3A5271
oklch(43.3% 0.06 255.2)
-
Step 900
900
#31435A
oklch(37.8% 0.046 254.9)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#3A5271 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) | #465372 | 0.017 |
| Deuteranopia (no green cones) | #404E70 | 0.013 |
| Tritanopia (no blue cones) | #23595D | 0.052 |
| Achromatopsia (no color) | #515151 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5271
#3A5271
oklch(43.3% 0.06 255.2)
- #644C29
#644C29
oklch(43.4% 0.06 75.5)
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 #3A5271, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.040
- Dusk #4E5481 ΔE 0.040
- Dusty Grape #545775 ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.046
- Light Navy #155084 ΔE 0.047
- Dusk Blue #26538D ΔE 0.049
- Twilight #4E518B ΔE 0.054
Use #3A5271 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.