#3E409D
Closest named color: Blueberry (#464196). oklch(42.6% 0.148 277.2), rgb(62, 64, 157).
Aa
White text reads best on this color (8.65:1).
About this color
#3E409D is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.148 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.017 away. White text reads best on it, at 8.65:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.42:1 |
| White text | 8.65:1 |
Values
| HEX | #3E409D |
| RGB | rgb(62, 64, 157) |
| HSL | hsl(239, 43%, 43%) |
| OKLCH | oklch(42.6% 0.148 277.2) |
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 #3E409D | 8.65:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #3E409D | 2.42:1 | Fails | Lc 14.6 | Not readable |
| #3E409D text on white | 8.65:1 | AAA | Lc 89.3 | Fine for body text |
| #3E409D text on black | 2.42:1 | Fails | Lc -12.9 | 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
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D1D7F9
oklch(88.5% 0.047 277.5)
-
Step 300
300
#B2BCF9
oklch(80.9% 0.087 277.1)
-
Step 400
400
#8C97F5
oklch(70.7% 0.137 277.2)
-
Step 500
500
#727AF2
oklch(63.2% 0.177 277.2)
-
Step 600
600
#5C5FE0
oklch(55.6% 0.192 277.1)
-
Step 700
700
#4C4DC3
oklch(49% 0.18 277.1)
-
Step 800
800 (this color)
#3E409D
oklch(42.6% 0.148 277.2)
-
Step 900
900
#34387D
oklch(37.7% 0.115 276.9)
-
Step 950
950
#1E2149
oklch(26.9% 0.073 277.1)
#3E409D 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) | #0050A0 | 0.057 |
| Deuteranopia (no green cones) | #00489B | 0.052 |
| Tritanopia (no blue cones) | #005668 | 0.127 |
| Achromatopsia (no color) | #4B4B4B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E409D
#3E409D
oklch(42.6% 0.148 277.2)
- #5C4E00
#5C4E00
oklch(42.5% 0.088 97.2)
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 #3E409D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.017
- Dark Slate Blue #483D8B ΔE 0.033
- Cobalt #1E488F ΔE 0.047
- Sapphire #2138AB ΔE 0.049
- Dusk Blue #26538D ΔE 0.063
- Twilight #4E518B ΔE 0.064
- Majorelle Blue #3F37C9 ΔE 0.072
- Rebecca Purple #663399 ΔE 0.072
Use #3E409D 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.