#3D5375
Closest named color: YInMn Blue (#415A77). oklch(43.9% 0.063 258.9), rgb(61, 83, 117).
Aa
White text reads best on this color (7.79:1).
About this color
#3D5375 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.063 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.022 away. White text reads best on it, at 7.79:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #3D5375 |
| RGB | rgb(61, 83, 117) |
| HSL | hsl(216, 31%, 35%) |
| OKLCH | oklch(43.9% 0.063 258.9) |
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 #3D5375 | 7.79:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #3D5375 | 2.69:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #3D5375 text on white | 7.79:1 | AAA | Lc 87.0 | Fine for body text |
| #3D5375 text on black | 2.69:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D9
oklch(81% 0.036 258.9)
-
Step 400
400
#8BA2C6
oklch(70.7% 0.059 259.3)
-
Step 500
500
#6E8BB7
oklch(63.2% 0.075 258.6)
-
Step 600
600
#5674A3
oklch(55.6% 0.082 259.1)
-
Step 700
700
#46618C
oklch(49% 0.077 259.4)
-
Step 800
800 (this color)
#3D5375
oklch(43.9% 0.063 258.9)
-
Step 900
900
#32425C
oklch(37.7% 0.049 259.9)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#3D5375 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) | #465576 | 0.014 |
| Deuteranopia (no green cones) | #405074 | 0.009 |
| Tritanopia (no blue cones) | #275A5F | 0.055 |
| Achromatopsia (no color) | #525252 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D5375
#3D5375
oklch(43.9% 0.063 258.9)
- #654E28
#654E28
oklch(43.9% 0.062 78.5)
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 #3D5375, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.022
- Dusk #4E5481 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.035
- Dusty Grape #545775 ΔE 0.036
- Dusk Blue #26538D ΔE 0.045
- Twilight #4E518B ΔE 0.046
- Light Navy #155084 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.047
Use #3D5375 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.