#3A3B60
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.063 281.7), rgb(58, 59, 96).
Aa
White text reads best on this color (10.63:1).
About this color
#3A3B60 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.063 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.043 away. White text reads best on it, at 10.63:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.97:1 |
| White text | 10.63:1 |
Values
| HEX | #3A3B60 |
| RGB | rgb(58, 59, 96) |
| HSL | hsl(238, 25%, 30%) |
| OKLCH | oklch(36.9% 0.063 281.7) |
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 #3A3B60 | 10.63:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #3A3B60 | 1.97:1 | Fails | Lc 9.3 | Not readable |
| #3A3B60 text on white | 10.63:1 | AAA | Lc 94.6 | Preferred for body text |
| #3A3B60 text on black | 1.97:1 | Fails | Lc -8.0 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D7EB
oklch(88.4% 0.027 283.5)
-
Step 300
300
#BBBEDF
oklch(81% 0.046 281.2)
-
Step 400
400
#989BCF
oklch(70.6% 0.076 281.7)
-
Step 500
500
#8082C3
oklch(63.1% 0.097 281.9)
-
Step 600
600
#6A6BAF
oklch(55.7% 0.104 281.8)
-
Step 700
700
#585997
oklch(49.2% 0.098 281.5)
-
Step 800
800
#48497A
oklch(42.8% 0.08 281.5)
-
Step 900
900 (this color)
#3A3B60
oklch(36.9% 0.063 281.7)
-
Step 950
950
#23243A
oklch(27% 0.041 281.3)
#3A3B60 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) | #2F4061 | 0.021 |
| Deuteranopia (no green cones) | #2D3D5F | 0.020 |
| Tritanopia (no blue cones) | #2F4249 | 0.055 |
| Achromatopsia (no color) | #3E3E3E | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3B60
#3A3B60
oklch(36.9% 0.063 281.7)
- #464014
#464014
oklch(36.8% 0.063 101.5)
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 #3A3B60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.053
- Charcoal #264653 ΔE 0.053
- Onyx #343A40 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.062
- Marine Blue #01386A ΔE 0.063
Use #3A3B60 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.