#3F385F
Closest named color: Dark Grey Blue (#29465B). oklch(36.6% 0.066 291), rgb(63, 56, 95).
Aa
White text reads best on this color (10.81:1).
About this color
#3F385F is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.066 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.053 away. White text reads best on it, at 10.81:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.94:1 |
| White text | 10.81:1 |
Values
| HEX | #3F385F |
| RGB | rgb(63, 56, 95) |
| HSL | hsl(251, 26%, 30%) |
| OKLCH | oklch(36.6% 0.066 291) |
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 #3F385F | 10.81:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #3F385F | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #3F385F text on white | 10.81:1 | AAA | Lc 95.0 | Preferred for body text |
| #3F385F text on black | 1.94:1 | Fails | Lc -7.6 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C0BCDF
oklch(81% 0.049 290.5)
-
Step 400
400
#A098CF
oklch(70.6% 0.08 290.9)
-
Step 500
500
#8A7EC2
oklch(63.1% 0.101 291.3)
-
Step 600
600
#7466AF
oklch(55.5% 0.112 291.1)
-
Step 700
700
#615596
oklch(49.1% 0.102 290.6)
-
Step 800
800
#4F467A
oklch(42.7% 0.085 290.3)
-
Step 900
900 (this color)
#3F385F
oklch(36.6% 0.066 291)
-
Step 950
950
#262339
oklch(27% 0.04 289.7)
#3F385F 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) | #2D3E61 | 0.031 |
| Deuteranopia (no green cones) | #2D3D5E | 0.031 |
| Tritanopia (no blue cones) | #383F47 | 0.054 |
| Achromatopsia (no color) | #3D3D3D | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F385F
#3F385F
oklch(36.6% 0.066 291)
- #404213
#404213
oklch(36.6% 0.067 111.6)
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 #3F385F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.060
- Onyx #343A40 ΔE 0.061
- Charcoal #264653 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.066
- Gunmetal #293241 ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.068
Use #3F385F 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.