#3E42A5
Closest named color: Blueberry (#464196). oklch(43.6% 0.156 276), rgb(62, 66, 165).
Aa
White text reads best on this color (8.30:1).
About this color
#3E42A5 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.156 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.027 away. White text reads best on it, at 8.30:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.52:1 |
| White text | 8.30:1 |
Values
| HEX | #3E42A5 |
| RGB | rgb(62, 66, 165) |
| HSL | hsl(238, 45%, 45%) |
| OKLCH | oklch(43.6% 0.156 276) |
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 #3E42A5 | 8.30:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #3E42A5 | 2.52:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #3E42A5 text on white | 8.30:1 | AAA | Lc 88.3 | Fine for body text |
| #3E42A5 text on black | 2.52:1 | Fails | Lc -13.9 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#CFD7FB
oklch(88.5% 0.05 275.4)
-
Step 300
300
#B0BCFC
oklch(80.9% 0.092 275.9)
-
Step 400
400
#8997FA
oklch(70.8% 0.145 276)
-
Step 500
500
#6E79F8
oklch(63.2% 0.187 275.9)
-
Step 600
600
#595EE7
oklch(55.7% 0.203 276)
-
Step 700
700
#494CC8
oklch(49.1% 0.188 275.9)
-
Step 800
800 (this color)
#3E42A5
oklch(43.6% 0.156 276)
-
Step 900
900
#323781
oklch(37.7% 0.123 275.9)
-
Step 950
950
#1D214B
oklch(27% 0.077 275.9)
#3E42A5 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) | #0053A8 | 0.057 |
| Deuteranopia (no green cones) | #004AA3 | 0.050 |
| Tritanopia (no blue cones) | #005A6D | 0.132 |
| Achromatopsia (no color) | #4E4E4E | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E42A5
#3E42A5
oklch(43.6% 0.156 276)
- #605100
#605100
oklch(43.7% 0.09 96.7)
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 #3E42A5, closest first.
No curated palette has a color within ΔE 0.04 of #3E42A5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.027
- Dark Slate Blue #483D8B ΔE 0.045
- Sapphire #2138AB ΔE 0.047
- Cobalt #1E488F ΔE 0.053
- Majorelle Blue #3F37C9 ΔE 0.061
- Blue With A Hint Of Purple #533CC6 ΔE 0.062
- Blue Blue #2242C7 ΔE 0.062
- Dusk Blue #26538D ΔE 0.067
Use #3E42A5 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.