#3E2A78
Closest named color: Dark Slate Blue (#483D8B). oklch(35.6% 0.127 290.3), rgb(62, 42, 120).
Aa
White text reads best on this color (11.62:1).
About this color
#3E2A78 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.127 and its hue 290°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.059 away. White text reads best on it, at 11.62:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.80:1 |
| White text | 11.62:1 |
Values
| HEX | #3E2A78 |
| RGB | rgb(62, 42, 120) |
| HSL | hsl(255, 48%, 32%) |
| OKLCH | oklch(35.6% 0.127 290.3) |
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 #3E2A78 | 11.62:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #3E2A78 | 1.80:1 | Fails | Lc 7.6 | Not readable |
| #3E2A78 text on white | 11.62:1 | AAA | Lc 96.3 | Preferred for body text |
| #3E2A78 text on black | 1.80:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E9E7FC
oklch(93.6% 0.028 290.2)
-
Step 200
200
#D8D4FA
oklch(88.5% 0.052 290.1)
-
Step 300
300
#BFB6FA
oklch(80.8% 0.095 290.2)
-
Step 400
400
#A18EF8
oklch(70.8% 0.152 290.2)
-
Step 500
500
#8C6DF4
oklch(63.1% 0.194 290.3)
-
Step 600
600
#7850E3
oklch(55.6% 0.211 290.4)
-
Step 700
700
#653FC5
oklch(49.1% 0.197 290.3)
-
Step 800
800
#52359F
oklch(42.6% 0.163 290.4)
-
Step 900
900 (this color)
#3E2A78
oklch(35.6% 0.127 290.3)
-
Step 950
950
#271D4A
oklch(27% 0.08 290.2)
#3E2A78 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) | #003A7A | 0.073 |
| Deuteranopia (no green cones) | #003776 | 0.073 |
| Tritanopia (no blue cones) | #2C3C4D | 0.102 |
| Achromatopsia (no color) | #393939 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E2A78
#3E2A78
oklch(35.6% 0.127 290.3)
- #3F3F00
#3F3F00
oklch(35.6% 0.078 109.8)
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 #3E2A78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.059
- Indigo #4B0082 ΔE 0.063
- Royal Purple #4B006E ΔE 0.070
- Blueberry #464196 ΔE 0.076
- Marine Blue #01386A ΔE 0.080
- Midnight Blue #191970 ΔE 0.081
- Twilight Blue #0A437A ΔE 0.082
- Prussian Blue #1D3557 ΔE 0.084
Use #3E2A78 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.