#3B3D60
Closest named color: Dark Grey Blue (#29465B). oklch(37.4% 0.06 280.6), rgb(59, 61, 96).
Aa
White text reads best on this color (10.38:1).
About this color
#3B3D60 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.060 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.039 away. White text reads best on it, at 10.38:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.02:1 |
| White text | 10.38:1 |
Values
| HEX | #3B3D60 |
| RGB | rgb(59, 61, 96) |
| HSL | hsl(237, 24%, 30%) |
| OKLCH | oklch(37.4% 0.06 280.6) |
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 #3B3D60 | 10.38:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #3B3D60 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #3B3D60 text on white | 10.38:1 | AAA | Lc 94.1 | Preferred for body text |
| #3B3D60 text on black | 2.02:1 | Fails | Lc -8.5 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D8EA
oklch(88.6% 0.025 280.8)
-
Step 300
300
#BBBEDE
oklch(81% 0.045 281.1)
-
Step 400
400
#989CCD
oklch(70.7% 0.072 280.8)
-
Step 500
500
#7F83C0
oklch(63.1% 0.092 280.5)
-
Step 600
600
#696CAC
oklch(55.6% 0.099 280.6)
-
Step 700
700
#575A94
oklch(49.1% 0.092 280.2)
-
Step 800
800
#474A78
oklch(42.8% 0.076 279.8)
-
Step 900
900 (this color)
#3B3D60
oklch(37.4% 0.06 280.6)
-
Step 950
950
#232439
oklch(27% 0.039 281.4)
#3B3D60 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) | #324161 | 0.017 |
| Deuteranopia (no green cones) | #303F5F | 0.017 |
| Tritanopia (no blue cones) | #31444A | 0.053 |
| Achromatopsia (no color) | #404040 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B3D60
#3B3D60
oklch(37.4% 0.06 280.6)
- #484219
#484219
oklch(37.5% 0.06 101.1)
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 #3B3D60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.054
- Onyx #343A40 ΔE 0.057
- Charcoal Grey #3C4142 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.063
- Marine Blue #01386A ΔE 0.066
Use #3B3D60 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.