#3D5791
Closest named color: Denim Blue (#3B5B92). oklch(46.5% 0.1 264.6), rgb(61, 87, 145).
Aa
White text reads best on this color (7.06:1).
About this color
#3D5791 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.100 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.011 away. White text reads best on it, at 7.06:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #3D5791 |
| RGB | rgb(61, 87, 145) |
| HSL | hsl(221, 41%, 40%) |
| OKLCH | oklch(46.5% 0.1 264.6) |
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 #3D5791 | 7.06:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #3D5791 | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #3D5791 text on white | 7.06:1 | AAA | Lc 84.4 | Fine for body text |
| #3D5791 text on black | 2.97:1 | Fails | Lc -17.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9EB
oklch(88.4% 0.027 264.4)
-
Step 300
300
#B1C1E1
oklch(80.9% 0.049 264.3)
-
Step 400
400
#89A0D2
oklch(70.7% 0.078 265.3)
-
Step 500
500
#6C88C6
oklch(63.1% 0.099 265.1)
-
Step 600
600
#5471B2
oklch(55.6% 0.107 264.9)
-
Step 700
700 (this color)
#3D5791
oklch(46.5% 0.1 264.6)
-
Step 800
800
#384D7C
oklch(42.6% 0.083 264.9)
-
Step 900
900
#304164
oklch(37.8% 0.064 263.8)
-
Step 950
950
#1C263B
oklch(27% 0.042 264.3)
#3D5791 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) | #3F5D93 | 0.018 |
| Deuteranopia (no green cones) | #345590 | 0.013 |
| Tritanopia (no blue cones) | #02646D | 0.090 |
| Achromatopsia (no color) | #585858 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5791
#3D5791
oklch(46.5% 0.1 264.6)
- #725400
#725400
oklch(46.5% 0.095 84.6)
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 #3D5791, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.011
- Light Navy Blue #2E5A88 ΔE 0.025
- Twilight #4E518B ΔE 0.027
- Dusky Blue #475F94 ΔE 0.028
- Dusk Blue #26538D ΔE 0.029
- Dusk #4E5481 ΔE 0.033
- Denim #3B638C ΔE 0.038
- YInMn Blue #415A77 ΔE 0.046
Use #3D5791 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.