#3A3079
Closest named color: Dark Slate Blue (#483D8B). oklch(36.3% 0.12 285), rgb(58, 48, 121).
Aa
White text reads best on this color (11.17:1).
About this color
#3A3079 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.120 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.051 away. White text reads best on it, at 11.17:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.87:1 |
| White text | 11.17:1 |
Values
| HEX | #3A3079 |
| RGB | rgb(58, 48, 121) |
| HSL | hsl(248, 43%, 33%) |
| OKLCH | oklch(36.3% 0.12 285) |
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 #3A3079 | 11.17:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #3A3079 | 1.87:1 | Fails | Lc 8.4 | Not readable |
| #3A3079 text on white | 11.17:1 | AAA | Lc 95.5 | Preferred for body text |
| #3A3079 text on black | 1.87:1 | 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
#F4F4FD
oklch(97% 0.012 286.2)
-
Step 100
100
#E7E8FB
oklch(93.6% 0.026 283.5)
-
Step 200
200
#D5D5FA
oklch(88.5% 0.051 285.3)
-
Step 300
300
#BAB9F9
oklch(80.9% 0.09 284.9)
-
Step 400
400
#9892F6
oklch(70.7% 0.144 284.8)
-
Step 500
500
#8173F2
oklch(63.1% 0.184 284.8)
-
Step 600
600
#6D57E0
oklch(55.5% 0.199 285.2)
-
Step 700
700
#5B46C3
oklch(49% 0.186 284.9)
-
Step 800
800
#4A3B9E
oklch(42.7% 0.154 284.7)
-
Step 900
900 (this color)
#3A3079
oklch(36.3% 0.12 285)
-
Step 950
950
#241F49
oklch(27% 0.075 285.6)
#3A3079 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) | #003D7B | 0.062 |
| Deuteranopia (no green cones) | #003977 | 0.061 |
| Tritanopia (no blue cones) | #23414F | 0.102 |
| Achromatopsia (no color) | #3B3B3B | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3079
#3A3079
oklch(36.3% 0.12 285)
- #444000
#444000
oklch(36.4% 0.077 105.6)
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 #3A3079, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.051
- Twilight Blue #0A437A ΔE 0.067
- Blueberry #464196 ΔE 0.067
- Marine Blue #01386A ΔE 0.069
- Cobalt #1E488F ΔE 0.074
- Prussian Blue #1D3557 ΔE 0.076
- Indigo #4B0082 ΔE 0.077
- Marine #042E60 ΔE 0.081
Use #3A3079 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.