#3D497E
Closest named color: Dusk Blue (#26538D). oklch(42.1% 0.089 272.4), rgb(61, 73, 126).
Aa
White text reads best on this color (8.56:1).
About this color
#3D497E is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.089 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.039 away. White text reads best on it, at 8.56:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.45:1 |
| White text | 8.56:1 |
Values
| HEX | #3D497E |
| RGB | rgb(61, 73, 126) |
| HSL | hsl(229, 35%, 37%) |
| OKLCH | oklch(42.1% 0.089 272.4) |
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 #3D497E | 8.56:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #3D497E | 2.45:1 | Fails | Lc 14.7 | Not readable |
| #3D497E text on white | 8.56:1 | AAA | Lc 89.3 | Fine for body text |
| #3D497E text on black | 2.45:1 | Fails | Lc -12.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F4
oklch(93.5% 0.015 273.8)
-
Step 200
200
#D2D8ED
oklch(88.4% 0.03 273.1)
-
Step 300
300
#B5BFE3
oklch(80.9% 0.052 273)
-
Step 400
400
#8E9ED5
oklch(70.7% 0.083 271.6)
-
Step 500
500
#7385CA
oklch(63.1% 0.106 271.9)
-
Step 600
600
#5C6DB7
oklch(55.5% 0.117 272.3)
-
Step 700
700
#4C5B9E
oklch(49.1% 0.109 272.3)
-
Step 800
800 (this color)
#3D497E
oklch(42.1% 0.089 272.4)
-
Step 900
900
#353F67
oklch(37.8% 0.07 272.1)
-
Step 950
950
#1F253C
oklch(27% 0.044 272.1)
#3D497E 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) | #344F80 | 0.019 |
| Deuteranopia (no green cones) | #2E4A7D | 0.019 |
| Tritanopia (no blue cones) | #22545D | 0.080 |
| Achromatopsia (no color) | #4C4C4C | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D497E
#3D497E
oklch(42.1% 0.089 272.4)
- #5E4B00
#5E4B00
oklch(42% 0.086 92.1)
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 #3D497E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.039
- Twilight #4E518B ΔE 0.040
- Light Navy #155084 ΔE 0.041
- Dusk #4E5481 ΔE 0.043
- Dark Slate Blue #483D8B ΔE 0.044
- Cobalt #1E488F ΔE 0.044
- Blueberry #464196 ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.050
Use #3D497E 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.