#3D375C
Closest named color: Prussian Blue (#1D3557). oklch(36% 0.063 290.3), rgb(61, 55, 92).
Aa
White text reads best on this color (11.05:1).
About this color
#3D375C is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.063 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.050 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.063) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #3D375C |
| RGB | rgb(61, 55, 92) |
| HSL | hsl(250, 25%, 29%) |
| OKLCH | oklch(36% 0.063 290.3) |
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 #3D375C | 11.05:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #3D375C | 1.89:1 | Fails | Lc 8.4 | Not readable |
| #3D375C text on white | 11.05:1 | AAA | Lc 95.5 | Preferred for body text |
| #3D375C text on black | 1.89:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D7EA
oklch(88.6% 0.026 288.3)
-
Step 300
300
#C0BCDE
oklch(80.9% 0.048 290.7)
-
Step 400
400
#A099CD
oklch(70.8% 0.075 290.5)
-
Step 500
500
#897FC0
oklch(63.1% 0.097 290.4)
-
Step 600
600
#7367AC
oklch(55.5% 0.106 290.5)
-
Step 700
700
#615694
oklch(49.2% 0.098 290.5)
-
Step 800
800
#4F4678
oklch(42.6% 0.082 290.8)
-
Step 900
900 (this color)
#3D375C
oklch(36% 0.063 290.3)
-
Step 950
950
#262339
oklch(27% 0.04 289.7)
#3D375C 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) | #2C3D5D | 0.030 |
| Deuteranopia (no green cones) | #2C3B5B | 0.028 |
| Tritanopia (no blue cones) | #363E45 | 0.053 |
| Achromatopsia (no color) | #3C3C3C | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D375C
#3D375C
oklch(36% 0.063 290.3)
- #3F4014
#3F4014
oklch(36% 0.063 110.4)
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 #3D375C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.055
- Onyx #343A40 ΔE 0.056
- Gunmetal #293241 ΔE 0.060
- Charcoal #264653 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.063
Use #3D375C 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.