#3A369A
Closest named color: Blueberry (#464196). oklch(40.2% 0.158 278.4), rgb(58, 54, 154).
Aa
White text reads best on this color (9.65:1).
About this color
#3A369A is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.158 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.036 away. White text reads best on it, at 9.65:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #3A369A |
| RGB | rgb(58, 54, 154) |
| HSL | hsl(242, 48%, 41%) |
| OKLCH | oklch(40.2% 0.158 278.4) |
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 #3A369A | 9.65:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #3A369A | 2.17:1 | Fails | Lc 12.1 | Not readable |
| #3A369A text on white | 9.65:1 | AAA | Lc 91.9 | Preferred for body text |
| #3A369A text on black | 2.17:1 | Fails | Lc -10.5 | 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
#D1D6FB
oklch(88.4% 0.051 279.2)
-
Step 300
300
#B3BBFC
oklch(80.9% 0.092 278.7)
-
Step 400
400
#8D95FB
oklch(70.7% 0.148 278.5)
-
Step 500
500
#7377F8
oklch(63.1% 0.189 278.2)
-
Step 600
600
#5E5BE7
oklch(55.6% 0.206 278.3)
-
Step 700
700
#4E4AC9
oklch(49.1% 0.191 278.1)
-
Step 800
800 (this color)
#3A369A
oklch(40.2% 0.158 278.4)
-
Step 900
900
#353681
oklch(37.7% 0.123 278.1)
-
Step 950
950
#1F204B
oklch(26.9% 0.078 278.8)
#3A369A 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) | #00499D | 0.060 |
| Deuteranopia (no green cones) | #004098 | 0.052 |
| Tritanopia (no blue cones) | #004F63 | 0.132 |
| Achromatopsia (no color) | #454545 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A369A
#3A369A
oklch(40.2% 0.158 278.4)
- #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 #3A369A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.040
- Sapphire #2138AB ΔE 0.042
- Cobalt #1E488F ΔE 0.055
- Indigo Blue #3A18B1 ΔE 0.059
- Imperial Purple #480CA8 ΔE 0.064
- Chrysanthemum #560BAD ΔE 0.076
- Majorelle Blue #3F37C9 ΔE 0.076
Use #3A369A 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.