#3A3E97
Closest named color: Blueberry (#464196). oklch(41.4% 0.143 276.2), rgb(58, 62, 151).
Aa
White text reads best on this color (9.06:1).
About this color
#3A3E97 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.143 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.021 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #3A3E97 |
| RGB | rgb(58, 62, 151) |
| HSL | hsl(237, 44%, 41%) |
| OKLCH | oklch(41.4% 0.143 276.2) |
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 #3A3E97 | 9.06:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #3A3E97 | 2.31:1 | Fails | Lc 13.5 | Not readable |
| #3A3E97 text on white | 9.06:1 | AAA | Lc 90.5 | Preferred for body text |
| #3A3E97 text on black | 2.31:1 | Fails | Lc -11.8 | 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
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B2BCF7
oklch(80.8% 0.084 276.9)
-
Step 400
400
#8B98F3
oklch(70.8% 0.133 276.3)
-
Step 500
500
#707BEE
oklch(63% 0.171 276.2)
-
Step 600
600
#5A61DD
oklch(55.6% 0.186 276.1)
-
Step 700
700
#4B4FC0
oklch(49.1% 0.173 276.4)
-
Step 800
800 (this color)
#3A3E97
oklch(41.4% 0.143 276.2)
-
Step 900
900
#33397B
oklch(37.7% 0.111 275.8)
-
Step 950
950
#1E2248
oklch(27% 0.07 276.2)
#3A3E97 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) | #004D9A | 0.054 |
| Deuteranopia (no green cones) | #004595 | 0.049 |
| Tritanopia (no blue cones) | #005364 | 0.122 |
| Achromatopsia (no color) | #494949 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A3E97
#3A3E97
oklch(41.4% 0.143 276.2)
- #594B00
#594B00
oklch(41.5% 0.085 96.8)
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 #3A3E97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.021
- Dark Slate Blue #483D8B ΔE 0.029
- Cobalt #1E488F ΔE 0.041
- Sapphire #2138AB ΔE 0.048
- Dusk Blue #26538D ΔE 0.062
- Twilight #4E518B ΔE 0.068
- Light Navy #155084 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.070
Use #3A3E97 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.