#3E4973
Closest named color: Dusk (#4E5481). oklch(41.5% 0.072 271.8), rgb(62, 73, 115).
Aa
White text reads best on this color (8.73:1).
About this color
#3E4973 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.072 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.046 away. White text reads best on it, at 8.73:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.40:1 |
| White text | 8.73:1 |
Values
| HEX | #3E4973 |
| RGB | rgb(62, 73, 115) |
| HSL | hsl(228, 30%, 35%) |
| OKLCH | oklch(41.5% 0.072 271.8) |
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 #3E4973 | 8.73:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #3E4973 | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #3E4973 text on white | 8.73:1 | AAA | Lc 89.9 | Fine for body text |
| #3E4973 text on black | 2.40:1 | Fails | Lc -12.4 | 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
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200
#D3D9E9
oklch(88.6% 0.023 269.4)
-
Step 300
300
#B7C0DD
oklch(81% 0.042 271.8)
-
Step 400
400
#919FCB
oklch(70.7% 0.067 270.9)
-
Step 500
500
#7786BE
oklch(63% 0.086 272.2)
-
Step 600
600
#606FAA
oklch(55.5% 0.094 272.2)
-
Step 700
700
#4F5D92
oklch(49.1% 0.087 271.6)
-
Step 800
800 (this color)
#3E4973
oklch(41.5% 0.072 271.8)
-
Step 900
900
#374060
oklch(37.8% 0.056 271.5)
-
Step 950
950
#202538
oklch(26.9% 0.036 272.4)
#3E4973 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) | #3A4D75 | 0.012 |
| Deuteranopia (no green cones) | #354972 | 0.013 |
| Tritanopia (no blue cones) | #2C5258 | 0.065 |
| Achromatopsia (no color) | #4B4B4B | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E4973
#3E4973
oklch(41.5% 0.072 271.8)
- #5A4A17
#5A4A17
oklch(41.5% 0.071 91.3)
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 #3E4973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.046
- Light Navy #155084 ΔE 0.047
- Dusk Blue #26538D ΔE 0.051
- Twilight #4E518B ΔE 0.051
- YInMn Blue #415A77 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.055
Use #3E4973 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.