#3E2978
Closest named color: Indigo (#4B0082). oklch(35.4% 0.128 290.6), rgb(62, 41, 120).
Aa
White text reads best on this color (11.71:1).
About this color
#3E2978 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.128 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.061 away. White text reads best on it, at 11.71:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.79:1 |
| White text | 11.71:1 |
Values
| HEX | #3E2978 |
| RGB | rgb(62, 41, 120) |
| HSL | hsl(256, 49%, 32%) |
| OKLCH | oklch(35.4% 0.128 290.6) |
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 #3E2978 | 11.71:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #3E2978 | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #3E2978 text on white | 11.71:1 | AAA | Lc 96.5 | Preferred for body text |
| #3E2978 text on black | 1.79:1 | 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
#D8D4FB
oklch(88.5% 0.053 290)
-
Step 300
300
#C0B6FB
oklch(80.9% 0.097 290.7)
-
Step 400
400
#A18DF8
oklch(70.6% 0.153 290.5)
-
Step 500
500
#8D6CF5
oklch(63.1% 0.197 290.8)
-
Step 600
600
#784FE4
oklch(55.6% 0.214 290.4)
-
Step 700
700
#663EC6
oklch(49.1% 0.199 290.7)
-
Step 800
800
#5335A0
oklch(42.8% 0.164 290.7)
-
Step 900
900 (this color)
#3E2978
oklch(35.4% 0.128 290.6)
-
Step 950
950
#271D4A
oklch(27% 0.08 290.2)
#3E2978 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) | #00397A | 0.074 |
| Deuteranopia (no green cones) | #003676 | 0.073 |
| Tritanopia (no blue cones) | #2C3C4C | 0.105 |
| Achromatopsia (no color) | #383838 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E2978
#3E2978
oklch(35.4% 0.128 290.6)
- #3E3F00
#3E3F00
oklch(35.5% 0.078 110.8)
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 #3E2978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.061
- Royal Purple #4B006E ΔE 0.068
- Blueberry #464196 ΔE 0.077
- Midnight Blue #191970 ΔE 0.080
- Marine Blue #01386A ΔE 0.081
- Twilight Blue #0A437A ΔE 0.083
- Prussian Blue #1D3557 ΔE 0.085
Use #3E2978 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.