#3A3994
Closest named color: Blueberry (#464196). oklch(40.2% 0.146 278.1), rgb(58, 57, 148).
Aa
White text reads best on this color (9.57:1).
About this color
#3A3994 is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.146 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.029 away. White text reads best on it, at 9.57:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #3A3994 |
| RGB | rgb(58, 57, 148) |
| HSL | hsl(241, 44%, 40%) |
| OKLCH | oklch(40.2% 0.146 278.1) |
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 #3A3994 | 9.57:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #3A3994 | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #3A3994 text on white | 9.57:1 | AAA | Lc 91.8 | Preferred for body text |
| #3A3994 text on black | 2.19:1 | Fails | Lc -10.6 | 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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B3BCF8
oklch(80.9% 0.085 277.7)
-
Step 400
400
#8E97F4
oklch(70.8% 0.136 278.1)
-
Step 500
500
#7479F0
oklch(63% 0.175 278.3)
-
Step 600
600
#5E5FDE
oklch(55.5% 0.189 278)
-
Step 700
700
#4E4DC1
oklch(49% 0.177 278)
-
Step 800
800 (this color)
#3A3994
oklch(40.2% 0.146 278.1)
-
Step 900
900
#36387C
oklch(37.8% 0.113 278.3)
-
Step 950
950
#1F2149
oklch(27% 0.073 278.2)
#3A3994 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) | #004997 | 0.057 |
| Deuteranopia (no green cones) | #004192 | 0.052 |
| Tritanopia (no blue cones) | #004F61 | 0.124 |
| Achromatopsia (no color) | #454545 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3994
#3A3994
oklch(40.2% 0.146 278.1)
- #544800
#544800
oklch(40.2% 0.083 98.3)
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 #3A3994, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.030
- Cobalt #1E488F ΔE 0.048
- Sapphire #2138AB ΔE 0.049
- Twilight Blue #0A437A ΔE 0.070
- Indigo Blue #3A18B1 ΔE 0.071
- Dusk Blue #26538D ΔE 0.073
- Imperial Purple #480CA8 ΔE 0.074
Use #3A3994 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.